"You are an auditor for XBRL filings. \nGiven two concepts and the provided filing (schema, presentation, calculation, definition, label, instance, and US GAAP taxonomy),\ndetermine which one of the following erroneous relationship types best describes the relationship between the two concepts:\n\n(1) Reversal  \n    Definition: A relationship is flagged as Reversal when the filer\u2019s extension taxonomy redefines element hierarchy inconsistently with the US GAAP taxonomy. Specifically, this occurs when an element that should be a sibling in the US GAAP taxonomy is instead defined as a child of another element (or vice versa, a child element is incorrectly redefined as a sibling).\n\n(2) Inappropriateness  \n    Definition: A relationship is flagged as Inappropriateness when elements appear under an abstract category where they do not belong, contrary to the US GAAP taxonomy.\n\n(3) CombinationErr  \n    Definition: A relationship is flagged as CombinationErr when an axis in the filer\u2019s extension taxonomy is associated with inappropriate members not permitted by the US GAAP taxonomy.\n\nYou must reference the US GAAP taxonomy to retrieve and check the two concepts across the entire filing.\nOutput only one of the following labels exactly, chosen strictly from:\n[\"Reversal\", \"Inappropriateness\", \"CombinationErr\"].\n\nNo explanations. No extra text. Only the label.\n\n    \n##Schema document\n<?xml version='1.0' encoding='UTF-8'?>\n<schema xmlns:xl=\"http://www.xbrl.org/2003/XLink\" xmlns:ref=\"http://www.xbrl.org/2006/ref\" xmlns:currency=\"http://xbrl.sec.gov/currency/2024\" xmlns:us-gaap-att=\"http://fasb.org/us-gaap/attributes\" xmlns:sic=\"http://xbrl.sec.gov/sic/2024\" xmlns:exch=\"http://xbrl.sec.gov/exch/2024\" xmlns:invest=\"http://xbrl.sec.gov/invest/2013-01-31\" xmlns:negated=\"http://www.xbrl.org/2009/role/negated\" xmlns:naics=\"http://xbrl.sec.gov/naics/2024\" xmlns:us-types=\"http://fasb.org/us-types/2024\" xmlns:stpr=\"http://xbrl.sec.gov/stpr/2024\" xmlns=\"http://www.w3.org/2001/XMLSchema\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:xbrli=\"http://www.xbrl.org/2003/instance\" xmlns:xbrldt=\"http://xbrl.org/2005/xbrldt\" xmlns:xbrldi=\"http://xbrl.org/2006/xbrldi\" xmlns:country=\"http://xbrl.sec.gov/country/2024\" xmlns:utr=\"http://www.xbrl.org/2009/utr\" xmlns:srt-types=\"http://fasb.org/srt-types/2024\" xmlns:dtr-types=\"http://www.xbrl.org/dtr/type/2020-01-21\" xmlns:srt-roles=\"http://fasb.org/srt-roles/2024\" xmlns:dei=\"http://xbrl.sec.gov/dei/2024\" xmlns:num=\"http://www.xbrl.org/dtr/type/numeric\" xmlns:nonnum=\"http://www.xbrl.org/dtr/type/non-numeric\" xmlns:srt=\"http://fasb.org/srt/2024\" xmlns:us-gaap=\"http://fasb.org/us-gaap/2024\" xmlns:meec=\"http://meec.com/20240930\" attributeFormDefault=\"unqualified\" elementFormDefault=\"qualified\" targetNamespace=\"http://meec.com/20240930\"><import namespace=\"http://www.xbrl.org/2003/instance\" schemaLocation=\"http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd\"/>\n  <import namespace=\"http://www.xbrl.org/2003/linkbase\" schemaLocation=\"http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"/>\n  <import namespace=\"http://xbrl.org/2005/xbrldt\" schemaLocation=\"http://www.xbrl.org/2005/xbrldt-2005.xsd\"/>\n  <import namespace=\"http://xbrl.sec.gov/country/2024\" schemaLocation=\"https://xbrl.sec.gov/country/2024/country-2024.xsd\"/>\n  <import namespace=\"http://xbrl.sec.gov/currency/2024\" schemaLocation=\"https://xbrl.sec.gov/currency/2024/currency-2024.xsd\"/>\n  <import namespace=\"http://xbrl.sec.gov/dei/2024\" schemaLocation=\"https://xbrl.sec.gov/dei/2024/dei-2024.xsd\"/>\n  <import namespace=\"http://www.xbrl.org/dtr/type/non-numeric\" schemaLocation=\"http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd\"/>\n  <import namespace=\"http://www.xbrl.org/dtr/type/numeric\" schemaLocation=\"http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd\"/>\n  <import namespace=\"http://xbrl.sec.gov/exch/2024\" schemaLocation=\"https://xbrl.sec.gov/exch/2024/exch-2024.xsd\"/>\n  <import namespace=\"http://www.xbrl.org/2009/arcrole/fact-explanatoryFact\" schemaLocation=\"http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd\"/>\n  <import namespace=\"http://www.xbrl.org/2009/role/negated\" schemaLocation=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd\"/>\n  <import namespace=\"http://www.xbrl.org/2009/role/net\" schemaLocation=\"http://www.xbrl.org/lrr/role/net-2009-12-16.xsd\"/>\n  <import namespace=\"http://xbrl.sec.gov/naics/2024\" schemaLocation=\"https://xbrl.sec.gov/naics/2024/naics-2024.xsd\"/>\n  <import namespace=\"http://xbrl.sec.gov/sic/2024\" schemaLocation=\"https://xbrl.sec.gov/sic/2024/sic-2024.xsd\"/>\n  <import namespace=\"http://fasb.org/srt-roles/2024\" schemaLocation=\"https://xbrl.fasb.org/srt/2024/elts/srt-roles-2024.xsd\"/>\n  <import namespace=\"http://fasb.org/srt-types/2024\" schemaLocation=\"https://xbrl.fasb.org/srt/2024/elts/srt-types-2024.xsd\"/>\n  <import namespace=\"http://www.xbrl.org/dtr/type/2020-01-21\" schemaLocation=\"https://www.xbrl.org/dtr/type/2020-01-21/types.xsd\"/>\n  <import namespace=\"http://xbrl.sec.gov/stpr/2024\" schemaLocation=\"https://xbrl.sec.gov/stpr/2024/stpr-2024.xsd\"/>\n  <import namespace=\"http://fasb.org/us-roles/2024\" schemaLocation=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-roles-2024.xsd\"/>\n  <import namespace=\"http://fasb.org/us-types/2024\" schemaLocation=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-types-2024.xsd\"/>\n  <import namespace=\"http://fasb.org/srt/2024\" schemaLocation=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd\"/>\n  <import namespace=\"http://fasb.org/us-gaap/2024\" schemaLocation=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd\"/>\n  <annotation><appinfo><link:roleType roleURI=\"http://meec.com/role/CondensedConsolidatedBalanceSheets\" id=\"CondensedConsolidatedBalanceSheets\">\n        <link:definition>000002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</link:definition>\n        <link:usedOn>link:presentationLink</link:usedOn>\n        <link:usedOn>link:calculationLink</link:usedOn>\n        <link:usedOn>link:definitionLink</link:usedOn>\n      </link:roleType>\n      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<link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsAbstract\" xlink:label=\"loc_us-gaapAssetsAbstract_6ed00e\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapStatementOfFinancialPositionAbstract_039cde\" xlink:to=\"loc_us-gaapAssetsAbstract_6ed00e\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrentAbstract\" xlink:label=\"loc_us-gaapAssetsCurrentAbstract_309e7b\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsAbstract_6ed00e\" xlink:to=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" order=\"2\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:label=\"loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_697053\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_697053\" order=\"3\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent\" xlink:label=\"loc_us-gaapAccountsReceivableNetCurrent_93eae1\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapAccountsReceivableNetCurrent_93eae1\" order=\"4\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxReceivable\" xlink:label=\"loc_us-gaapIncomeTaxReceivable_90ce96\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapIncomeTaxReceivable_90ce96\" order=\"5\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryNet\" xlink:label=\"loc_us-gaapInventoryNet_9a3bfa\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapInventoryNet_9a3bfa\" order=\"6\" preferredLabel=\"http://www.xbrl.org/2003/role/verboseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent\" xlink:label=\"loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent_df1aaf\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent_df1aaf\" order=\"7\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent\" xlink:label=\"loc_us-gaapAssetsCurrent_113de4\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapAssetsCurrent_113de4\" order=\"8\" preferredLabel=\"http://www.xbrl.org/2003/role/totalLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SecurityDeposit\" xlink:label=\"loc_us-gaapSecurityDeposit_d25076\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapSecurityDeposit_d25076\" order=\"9\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet\" xlink:label=\"loc_us-gaapPropertyPlantAndEquipmentNet_239f87\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapPropertyPlantAndEquipmentNet_239f87\" order=\"10\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAsset\" xlink:label=\"loc_us-gaapOperatingLeaseRightOfUseAsset_5ba606\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapOperatingLeaseRightOfUseAsset_5ba606\" order=\"11\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet\" xlink:label=\"loc_us-gaapFiniteLivedIntangibleAssetsNet_9065ad\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapFiniteLivedIntangibleAssetsNet_9065ad\" order=\"12\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Assets\" xlink:label=\"loc_us-gaapAssets_c6ca00\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapAssets_c6ca00\" order=\"13\" preferredLabel=\"http://www.xbrl.org/2003/role/totalLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract\" xlink:label=\"loc_us-gaapLiabilitiesAndStockholdersEquityAbstract_f0ddf2\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapAssetsCurrentAbstract_309e7b\" xlink:to=\"loc_us-gaapLiabilitiesAndStockholdersEquityAbstract_f0ddf2\" order=\"14\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrentAbstract\" xlink:label=\"loc_us-gaapLiabilitiesCurrentAbstract_694294\"/>\n    <link:presentationArc xlink:type=\"arc\" 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xlink:from=\"loc_us-gaapLiabilitiesCurrentAbstract_694294\" xlink:to=\"loc_us-gaapCustomerLoyaltyProgramLiabilityCurrent_cddd05\" order=\"19\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedSalariesCurrent\" xlink:label=\"loc_us-gaapAccruedSalariesCurrent_2529c5\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapLiabilitiesCurrentAbstract_694294\" xlink:to=\"loc_us-gaapAccruedSalariesCurrent_2529c5\" order=\"20\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent\" xlink:label=\"loc_us-gaapLiabilitiesCurrent_147e10\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapLiabilitiesCurrentAbstract_694294\" xlink:to=\"loc_us-gaapLiabilitiesCurrent_147e10\" 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xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NotesPayableCurrent\" xlink:label=\"loc_us-gaapNotesPayableCurrent_de96e6\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapLiabilitiesCurrentAbstract_694294\" xlink:to=\"loc_us-gaapNotesPayableCurrent_de96e6\" order=\"24\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"meec-20240930.xsd#meec_ProfitShareLiabilityRelatedParty\" xlink:label=\"loc_meecProfitShareLiabilityRelatedParty_b411a9\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapLiabilitiesCurrentAbstract_694294\" xlink:to=\"loc_meecProfitShareLiabilityRelatedParty_b411a9\" order=\"25\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities\" xlink:label=\"loc_us-gaapLiabilities_9774cb\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapLiabilitiesCurrentAbstract_694294\" xlink:to=\"loc_us-gaapLiabilities_9774cb\" order=\"26\" preferredLabel=\"http://www.xbrl.org/2003/role/totalLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract\" xlink:label=\"loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_5046d8\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapLiabilitiesCurrentAbstract_694294\" xlink:to=\"loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_5046d8\" order=\"27\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityAbstract\" xlink:label=\"loc_us-gaapStockholdersEquityAbstract_cfdfb3\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_5046d8\" xlink:to=\"loc_us-gaapStockholdersEquityAbstract_cfdfb3\" order=\"28\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockValue\" xlink:label=\"loc_us-gaapPreferredStockValue_931e82\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapStockholdersEquityAbstract_cfdfb3\" xlink:to=\"loc_us-gaapPreferredStockValue_931e82\" order=\"29\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValue\" xlink:label=\"loc_us-gaapCommonStockValue_7aa508\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapStockholdersEquityAbstract_cfdfb3\" xlink:to=\"loc_us-gaapCommonStockValue_7aa508\" order=\"30\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapital\" xlink:label=\"loc_us-gaapAdditionalPaidInCapital_6df8ce\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapStockholdersEquityAbstract_cfdfb3\" xlink:to=\"loc_us-gaapAdditionalPaidInCapital_6df8ce\" order=\"31\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit\" xlink:label=\"loc_us-gaapRetainedEarningsAccumulatedDeficit_d2877f\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapStockholdersEquityAbstract_cfdfb3\" xlink:to=\"loc_us-gaapRetainedEarningsAccumulatedDeficit_d2877f\" order=\"32\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity\" xlink:label=\"loc_us-gaapStockholdersEquity_da61a6\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapStockholdersEquityAbstract_cfdfb3\" xlink:to=\"loc_us-gaapStockholdersEquity_da61a6\" order=\"33\" preferredLabel=\"http://www.xbrl.org/2003/role/totalLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquity\" xlink:label=\"loc_us-gaapLiabilitiesAndStockholdersEquity_e0f60c\"/>\n    <link:presentationArc xlink:type=\"arc\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaapStockholdersEquityAbstract_cfdfb3\" xlink:to=\"loc_us-gaapLiabilitiesAndStockholdersEquity_e0f60c\" order=\"34\" preferredLabel=\"http://www.xbrl.org/2003/role/totalLabel\"/>\n  </link:presentationLink>\n  </link:linkbase>\n\n\n##Calculation linkbase document\n<?xml version='1.0' encoding='US-ASCII'?>\n<link:linkbase xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xsi:schemaLocation=\"http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"><link:roleRef roleURI=\"http://meec.com/role/CondensedConsolidatedBalanceSheets\" xlink:href=\"meec-20240930.xsd#CondensedConsolidatedBalanceSheets\" xlink:type=\"simple\"/>\n  <link:calculationLink xlink:type=\"extended\" xlink:role=\"http://meec.com/role/CondensedConsolidatedBalanceSheets\" xlink:title=\"000002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS\">\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent\" xlink:label=\"loc_us-gaapAssetsCurrent\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:label=\"loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\"/>\n    <link:calculationArc order=\"2\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapAssetsCurrent\" xlink:to=\"loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent\" xlink:label=\"loc_us-gaapAccountsReceivableNetCurrent\"/>\n    <link:calculationArc order=\"3\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapAssetsCurrent\" xlink:to=\"loc_us-gaapAccountsReceivableNetCurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryNet\" xlink:label=\"loc_us-gaapInventoryNet\"/>\n    <link:calculationArc order=\"4\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapAssetsCurrent\" xlink:to=\"loc_us-gaapInventoryNet\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent\" xlink:label=\"loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent\"/>\n    <link:calculationArc order=\"5\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapAssetsCurrent\" xlink:to=\"loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxReceivable\" xlink:label=\"loc_us-gaapIncomeTaxReceivable\"/>\n    <link:calculationArc order=\"6\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapAssetsCurrent\" xlink:to=\"loc_us-gaapIncomeTaxReceivable\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Assets\" xlink:label=\"loc_us-gaapAssets\"/>\n    <link:calculationArc order=\"7\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapAssets\" xlink:to=\"loc_us-gaapAssetsCurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SecurityDeposit\" xlink:label=\"loc_us-gaapSecurityDeposit\"/>\n    <link:calculationArc order=\"8\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapAssets\" xlink:to=\"loc_us-gaapSecurityDeposit\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet\" xlink:label=\"loc_us-gaapPropertyPlantAndEquipmentNet\"/>\n    <link:calculationArc order=\"9\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapAssets\" xlink:to=\"loc_us-gaapPropertyPlantAndEquipmentNet\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAsset\" xlink:label=\"loc_us-gaapOperatingLeaseRightOfUseAsset\"/>\n    <link:calculationArc order=\"10\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapAssets\" xlink:to=\"loc_us-gaapOperatingLeaseRightOfUseAsset\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet\" xlink:label=\"loc_us-gaapFiniteLivedIntangibleAssetsNet\"/>\n    <link:calculationArc order=\"11\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapAssets\" xlink:to=\"loc_us-gaapFiniteLivedIntangibleAssetsNet\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent\" xlink:label=\"loc_us-gaapLiabilitiesCurrent\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent\" xlink:label=\"loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrent\"/>\n    <link:calculationArc order=\"12\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilitiesCurrent\" xlink:to=\"loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityCurrent\" xlink:label=\"loc_us-gaapOperatingLeaseLiabilityCurrent\"/>\n    <link:calculationArc order=\"13\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilitiesCurrent\" xlink:to=\"loc_us-gaapOperatingLeaseLiabilityCurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CustomerLoyaltyProgramLiabilityCurrent\" xlink:label=\"loc_us-gaapCustomerLoyaltyProgramLiabilityCurrent\"/>\n    <link:calculationArc order=\"14\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilitiesCurrent\" xlink:to=\"loc_us-gaapCustomerLoyaltyProgramLiabilityCurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedSalariesCurrent\" xlink:label=\"loc_us-gaapAccruedSalariesCurrent\"/>\n    <link:calculationArc order=\"15\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilitiesCurrent\" xlink:to=\"loc_us-gaapAccruedSalariesCurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TaxesPayableCurrent\" xlink:label=\"loc_us-gaapTaxesPayableCurrent\"/>\n    <link:calculationArc order=\"16\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilitiesCurrent\" xlink:to=\"loc_us-gaapTaxesPayableCurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities\" xlink:label=\"loc_us-gaapLiabilities\"/>\n    <link:calculationArc order=\"17\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilities\" xlink:to=\"loc_us-gaapLiabilitiesCurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent\" xlink:label=\"loc_us-gaapOperatingLeaseLiabilityNoncurrent\"/>\n    <link:calculationArc order=\"18\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilities\" xlink:to=\"loc_us-gaapOperatingLeaseLiabilityNoncurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"meec-20240930.xsd#meec_SecuredNotePayableRelatedParty\" xlink:label=\"loc_meecSecuredNotePayableRelatedParty\"/>\n    <link:calculationArc order=\"19\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilities\" xlink:to=\"loc_meecSecuredNotePayableRelatedParty\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NotesPayableCurrent\" xlink:label=\"loc_us-gaapNotesPayableCurrent\"/>\n    <link:calculationArc order=\"20\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilities\" xlink:to=\"loc_us-gaapNotesPayableCurrent\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"meec-20240930.xsd#meec_ProfitShareLiabilityRelatedParty\" xlink:label=\"loc_meecProfitShareLiabilityRelatedParty\"/>\n    <link:calculationArc order=\"21\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilities\" xlink:to=\"loc_meecProfitShareLiabilityRelatedParty\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity\" xlink:label=\"loc_us-gaapStockholdersEquity\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockValue\" xlink:label=\"loc_us-gaapPreferredStockValue\"/>\n    <link:calculationArc order=\"22\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapStockholdersEquity\" xlink:to=\"loc_us-gaapPreferredStockValue\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValue\" xlink:label=\"loc_us-gaapCommonStockValue\"/>\n    <link:calculationArc order=\"23\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapStockholdersEquity\" xlink:to=\"loc_us-gaapCommonStockValue\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapital\" xlink:label=\"loc_us-gaapAdditionalPaidInCapital\"/>\n    <link:calculationArc order=\"24\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapStockholdersEquity\" xlink:to=\"loc_us-gaapAdditionalPaidInCapital\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit\" xlink:label=\"loc_us-gaapRetainedEarningsAccumulatedDeficit\"/>\n    <link:calculationArc order=\"25\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapStockholdersEquity\" xlink:to=\"loc_us-gaapRetainedEarningsAccumulatedDeficit\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquity\" xlink:label=\"loc_us-gaapLiabilitiesAndStockholdersEquity\"/>\n    <link:calculationArc order=\"26\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilitiesAndStockholdersEquity\" xlink:to=\"loc_us-gaapLiabilities\" xlink:type=\"arc\" weight=\"1\"/>\n    <link:calculationArc order=\"27\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaapLiabilitiesAndStockholdersEquity\" xlink:to=\"loc_us-gaapStockholdersEquity\" xlink:type=\"arc\" weight=\"1\"/>\n  </link:calculationLink>\n  </link:linkbase>\n\n\n##Definition linkbase document\n<?xml version='1.0' encoding='US-ASCII'?>\n<link:linkbase xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:xbrldt=\"http://xbrl.org/2005/xbrldt\" xsi:schemaLocation=\"http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"><link:arcroleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension\" arcroleURI=\"http://xbrl.org/int/dim/arcrole/hypercube-dimension\"/>\n  <link:arcroleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain\" arcroleURI=\"http://xbrl.org/int/dim/arcrole/dimension-domain\"/>\n  <link:arcroleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member\" arcroleURI=\"http://xbrl.org/int/dim/arcrole/domain-member\"/>\n  <link:arcroleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#all\" arcroleURI=\"http://xbrl.org/int/dim/arcrole/all\"/>\n  <link:arcroleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#notAll\" arcroleURI=\"http://xbrl.org/int/dim/arcrole/notAll\"/>\n  <link:arcroleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default\" arcroleURI=\"http://xbrl.org/int/dim/arcrole/dimension-default\"/>\n  <link:roleRef roleURI=\"http://meec.com/role/CondensedConsolidatedBalanceSheets\" xlink:href=\"meec-20240930.xsd#CondensedConsolidatedBalanceSheets\" xlink:type=\"simple\"/>\n  <link:definitionLink xlink:type=\"extended\" xlink:role=\"http://meec.com/role/CondensedConsolidatedBalanceSheets\" xlink:title=\"000002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS\"/>\n  </link:linkbase>\n\n\n##Label linkbase document\n<?xml version='1.0' encoding='UTF-8'?>\n<link:linkbase xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xsi:schemaLocation=\"http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"><link:roleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel\" roleURI=\"http://www.xbrl.org/2009/role/negatedLabel\"/>\n  <link:roleRef xlink:type=\"simple\" roleURI=\"http://www.xbrl.org/2009/role/negatedPeriodEndLabel\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel\"/>\n  <link:roleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel\" roleURI=\"http://www.xbrl.org/2009/role/negatedPeriodStartLabel\"/>\n  <link:roleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel\" roleURI=\"http://www.xbrl.org/2009/role/negatedTotalLabel\"/>\n  <link:roleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel\" roleURI=\"http://www.xbrl.org/2009/role/negatedNetLabel\"/>\n  <link:roleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel\" roleURI=\"http://www.xbrl.org/2009/role/negatedTerseLabel\"/>\n  <link:roleRef xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel\" roleURI=\"http://www.xbrl.org/2009/role/netLabel\"/>\n  <link:labelLink xlink:type=\"extended\" xlink:role=\"http://www.xbrl.org/2003/role/link\"><link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis\" xlink:label=\"us-gaap_FairValueByFairValueHierarchyLevelAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_FairValueByFairValueHierarchyLevelAxis\" xlink:to=\"us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl_15e177\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl_15e177\" xml:lang=\"en-US\">Fair Value By Fair Value Hierarchy Level Axis</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract\" xlink:label=\"us-gaap_CommitmentsAndContingenciesDisclosureAbstract\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_CommitmentsAndContingenciesDisclosureAbstract\" xlink:to=\"us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl_d28849\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl_d28849\" xml:lang=\"en-US\">Commitments and contingencies</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxReceivable\" xlink:label=\"us-gaap_IncomeTaxReceivable\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_IncomeTaxReceivable\" xlink:to=\"us-gaap_IncomeTaxReceivable_lbl_fb5350\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_IncomeTaxReceivable_lbl_fb5350\" xml:lang=\"en-US\">Income tax receivable</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryNet\" xlink:label=\"us-gaap_InventoryNet\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_InventoryNet\" xlink:to=\"us-gaap_InventoryNet_lbl_f655b1\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_InventoryNet\" xlink:to=\"us-gaap_InventoryNet_lbl_7\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_InventoryNet\" xlink:to=\"us-gaap_InventoryNet_lbl_394490\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:label=\"us-gaap_InventoryNet_lbl_f655b1\" xml:lang=\"en-US\">Inventory</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_InventoryNet_lbl_7\" xml:lang=\"en-US\">[Inventory, Net]</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:label=\"us-gaap_InventoryNet_lbl_394490\" xml:lang=\"en-US\">Inventory total</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityCurrent\" xlink:label=\"us-gaap_OperatingLeaseLiabilityCurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_OperatingLeaseLiabilityCurrent\" xlink:to=\"us-gaap_OperatingLeaseLiabilityCurrent_lbl_68b8dc\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_OperatingLeaseLiabilityCurrent\" xlink:to=\"us-gaap_OperatingLeaseLiabilityCurrent_lbl_d1fe63\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_OperatingLeaseLiabilityCurrent_lbl_68b8dc\" xml:lang=\"en-US\">Current portion of operating lease liability</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:label=\"us-gaap_OperatingLeaseLiabilityCurrent_lbl_d1fe63\" xml:lang=\"en-US\">Current portion of operating lease liability</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel3Member\" xlink:label=\"us-gaap_FairValueInputsLevel3Member\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_FairValueInputsLevel3Member\" xlink:to=\"us-gaap_FairValueInputsLevel3Member_lbl_038bb5\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_FairValueInputsLevel3Member_lbl_038bb5\" xml:lang=\"en-US\">Fair Value, Inputs, Level 3 [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit\" xlink:label=\"us-gaap_RetainedEarningsAccumulatedDeficit\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_RetainedEarningsAccumulatedDeficit\" xlink:to=\"us-gaap_RetainedEarningsAccumulatedDeficit_lbl_ac7995\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_RetainedEarningsAccumulatedDeficit_lbl_ac7995\" xml:lang=\"en-US\">Accumulated deficit</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NotesPayableCurrent\" xlink:label=\"us-gaap_NotesPayableCurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_NotesPayableCurrent\" xlink:to=\"us-gaap_NotesPayableCurrent_lbl_5ac353\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_NotesPayableCurrent_lbl_5ac353\" xml:lang=\"en-US\">Unsecured note payable, net of discount and issuance costs - related party</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SecurityDeposit\" xlink:label=\"us-gaap_SecurityDeposit\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_SecurityDeposit\" xlink:to=\"us-gaap_SecurityDeposit_lbl_1d7e1f\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_SecurityDeposit_lbl_1d7e1f\" xml:lang=\"en-US\">Security deposits</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet\" xlink:label=\"us-gaap_PropertyPlantAndEquipmentNet\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_PropertyPlantAndEquipmentNet\" xlink:to=\"us-gaap_PropertyPlantAndEquipmentNet_lbl_68c2d2\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_PropertyPlantAndEquipmentNet\" xlink:to=\"us-gaap_PropertyPlantAndEquipmentNet_lbl_c4236d\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_PropertyPlantAndEquipmentNet_lbl_68c2d2\" xml:lang=\"en-US\">Property and equipment, net</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:label=\"us-gaap_PropertyPlantAndEquipmentNet_lbl_c4236d\" xml:lang=\"en-US\">Property and equipment, net</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel1Member\" xlink:label=\"us-gaap_FairValueInputsLevel1Member\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_FairValueInputsLevel1Member\" xlink:to=\"us-gaap_FairValueInputsLevel1Member_lbl_361341\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_FairValueInputsLevel1Member_lbl_361341\" xml:lang=\"en-US\">Fair Value, Inputs, Level 1 [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CustomerLoyaltyProgramLiabilityCurrent\" xlink:label=\"us-gaap_CustomerLoyaltyProgramLiabilityCurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_CustomerLoyaltyProgramLiabilityCurrent\" xlink:to=\"us-gaap_CustomerLoyaltyProgramLiabilityCurrent_lbl_f7d0b0\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_CustomerLoyaltyProgramLiabilityCurrent_lbl_f7d0b0\" xml:lang=\"en-US\">Customer credits</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsMember\" xlink:label=\"us-gaap_RetainedEarningsMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_RetainedEarningsMember\" xlink:to=\"us-gaap_RetainedEarningsMember_lbl_8ab6f5\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_RetainedEarningsMember_lbl_8ab6f5\" xml:lang=\"en-US\">Accumulated Deficit</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapitalMember\" xlink:label=\"us-gaap_AdditionalPaidInCapitalMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_AdditionalPaidInCapitalMember\" xlink:to=\"us-gaap_AdditionalPaidInCapitalMember_lbl_20fcee\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_AdditionalPaidInCapitalMember_lbl_20fcee\" xml:lang=\"en-US\">Additional Paid-In Capital</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"meec-20240930.xsd#meec_SecuredNotePayableRelatedParty\" xlink:label=\"meec_SecuredNotePayableRelatedParty\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"meec_SecuredNotePayableRelatedParty\" xlink:to=\"meec_SecuredNotePayableRelatedParty_lbl_2147c3\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"meec_SecuredNotePayableRelatedParty_lbl_2147c3\" xml:lang=\"en-US\">Secured note payable, net of discount - related party</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract\" xlink:label=\"us-gaap_LiabilitiesAndStockholdersEquityAbstract\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_LiabilitiesAndStockholdersEquityAbstract\" xlink:to=\"us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl_7b5464\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl_7b5464\" xml:lang=\"en-US\">LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent\" xlink:label=\"us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent\" xlink:to=\"us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl_1f6085\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl_1f6085\" xml:lang=\"en-US\">Accounts payable and accrued expenses (related party $191,737 and $107,454 at September 30, 2024 and December 31, 2023, respectively)</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrentAbstract\" xlink:label=\"us-gaap_AssetsCurrentAbstract\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_AssetsCurrentAbstract\" xlink:to=\"us-gaap_AssetsCurrentAbstract_lbl_5305d7\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_AssetsCurrentAbstract_lbl_5305d7\" xml:lang=\"en-US\">Current assets</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementOfFinancialPositionAbstract\" xlink:label=\"us-gaap_StatementOfFinancialPositionAbstract\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_StatementOfFinancialPositionAbstract\" xlink:to=\"us-gaap_StatementOfFinancialPositionAbstract_lbl_8997b6\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_StatementOfFinancialPositionAbstract_lbl_8997b6\" xml:lang=\"en-US\">CONDENSED CONSOLIDATED BALANCE SHEETS</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockValue\" xlink:label=\"us-gaap_PreferredStockValue\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_PreferredStockValue\" xlink:to=\"us-gaap_PreferredStockValue_lbl_581283\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_PreferredStockValue_lbl_581283\" xml:lang=\"en-US\">Preferred stock, $0.001 par value: 2,000,000 shares authorized, no shares issued</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent\" xlink:label=\"us-gaap_OperatingLeaseLiabilityNoncurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_OperatingLeaseLiabilityNoncurrent\" xlink:to=\"us-gaap_OperatingLeaseLiabilityNoncurrent_lbl_04ec55\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_OperatingLeaseLiabilityNoncurrent_lbl_04ec55\" xml:lang=\"en-US\">Operating lease liability, net of current portion</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent\" xlink:label=\"us-gaap_AccountsReceivableNetCurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_AccountsReceivableNetCurrent\" xlink:to=\"us-gaap_AccountsReceivableNetCurrent_lbl_5c9a38\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_AccountsReceivableNetCurrent_lbl_5c9a38\" xml:lang=\"en-US\">Accounts receivable</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityAbstract\" xlink:label=\"us-gaap_StockholdersEquityAbstract\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_StockholdersEquityAbstract\" xlink:to=\"us-gaap_StockholdersEquityAbstract_lbl_e7910f\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_StockholdersEquityAbstract_lbl_e7910f\" xml:lang=\"en-US\">Stockholders' Equity (deficit)</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedSalariesCurrent\" xlink:label=\"us-gaap_AccruedSalariesCurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_AccruedSalariesCurrent\" xlink:to=\"us-gaap_AccruedSalariesCurrent_lbl_43409f\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_AccruedSalariesCurrent_lbl_43409f\" xml:lang=\"en-US\">Accrued salaries</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"meec-20240930.xsd#meec_ProfitShareLiabilityRelatedParty\" xlink:label=\"meec_ProfitShareLiabilityRelatedParty\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"meec_ProfitShareLiabilityRelatedParty\" xlink:to=\"meec_ProfitShareLiabilityRelatedParty_lbl_a66dd2\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"meec_ProfitShareLiabilityRelatedParty\" xlink:to=\"meec_ProfitShareLiabilityRelatedParty_lbl_7d3186\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"meec_ProfitShareLiabilityRelatedParty_lbl_a66dd2\" xml:lang=\"en-US\">Profit share liability - related party</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:label=\"meec_ProfitShareLiabilityRelatedParty_lbl_7d3186\" xml:lang=\"en-US\">Profit share liability</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:label=\"us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:to=\"us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_0e9d76\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:to=\"us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_5e43e5\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:to=\"us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_2ae2d9\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_0e9d76\" xml:lang=\"en-US\">Cash</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/periodStartLabel\" xlink:label=\"us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_5e43e5\" xml:lang=\"en-US\">Cash - beginning of period</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/periodEndLabel\" xlink:label=\"us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl_2ae2d9\" xml:lang=\"en-US\">Cash - end of period</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity\" xlink:label=\"us-gaap_StockholdersEquity\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_StockholdersEquity\" xlink:to=\"us-gaap_StockholdersEquity_lbl_7a1860\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_StockholdersEquity\" xlink:to=\"us-gaap_StockholdersEquity_lbl_34\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_StockholdersEquity\" xlink:to=\"us-gaap_StockholdersEquity_lbl_31304f\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_StockholdersEquity\" xlink:to=\"us-gaap_StockholdersEquity_lbl_77f54a\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:label=\"us-gaap_StockholdersEquity_lbl_7a1860\" xml:lang=\"en-US\">Total stockholders' equity (deficit)</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_StockholdersEquity_lbl_34\" xml:lang=\"en-US\">[Equity, Attributable to Parent]</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/periodStartLabel\" xlink:label=\"us-gaap_StockholdersEquity_lbl_31304f\" xml:lang=\"en-US\">Balance, amount</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/periodEndLabel\" xlink:label=\"us-gaap_StockholdersEquity_lbl_77f54a\" xml:lang=\"en-US\">Balance, amount</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsAbstract\" xlink:label=\"us-gaap_AssetsAbstract\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_AssetsAbstract\" xlink:to=\"us-gaap_AssetsAbstract_lbl_7cc978\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_AssetsAbstract_lbl_7cc978\" xml:lang=\"en-US\">ASSETS</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementEquityComponentsAxis\" xlink:label=\"us-gaap_StatementEquityComponentsAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_StatementEquityComponentsAxis\" xlink:to=\"us-gaap_StatementEquityComponentsAxis_lbl_4315d2\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_StatementEquityComponentsAxis_lbl_4315d2\" xml:lang=\"en-US\">Equity Components [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel2Member\" xlink:label=\"us-gaap_FairValueInputsLevel2Member\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_FairValueInputsLevel2Member\" xlink:to=\"us-gaap_FairValueInputsLevel2Member_lbl_d7b74b\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_FairValueInputsLevel2Member_lbl_d7b74b\" xml:lang=\"en-US\">Fair Value, Inputs, Level 2 [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"meec-20240930.xsd#meec_CommonSharesMember\" xlink:label=\"meec_CommonSharesMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"meec_CommonSharesMember\" xlink:to=\"meec_CommonSharesMember_lbl_cfa954\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"meec_CommonSharesMember_lbl_cfa954\" xml:lang=\"en-US\">Common Stocks</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent\" xlink:label=\"us-gaap_AssetsCurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_AssetsCurrent\" xlink:to=\"us-gaap_AssetsCurrent_lbl_5cea97\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_AssetsCurrent\" xlink:to=\"us-gaap_AssetsCurrent_lbl_9\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:label=\"us-gaap_AssetsCurrent_lbl_5cea97\" xml:lang=\"en-US\">Total current assets</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_AssetsCurrent_lbl_9\" xml:lang=\"en-US\">[Assets, Current]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrentAbstract\" xlink:label=\"us-gaap_LiabilitiesCurrentAbstract\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_LiabilitiesCurrentAbstract\" xlink:to=\"us-gaap_LiabilitiesCurrentAbstract_lbl_6980a0\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_LiabilitiesCurrentAbstract_lbl_6980a0\" xml:lang=\"en-US\">Current liabilities</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities\" xlink:label=\"us-gaap_Liabilities\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_Liabilities\" xlink:to=\"us-gaap_Liabilities_lbl_4dfb54\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_Liabilities\" xlink:to=\"us-gaap_Liabilities_lbl_27\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:label=\"us-gaap_Liabilities_lbl_4dfb54\" xml:lang=\"en-US\">Total liabilities</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_Liabilities_lbl_27\" xml:lang=\"en-US\">[Liabilities]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAsset\" xlink:label=\"us-gaap_OperatingLeaseRightOfUseAsset\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_OperatingLeaseRightOfUseAsset\" xlink:to=\"us-gaap_OperatingLeaseRightOfUseAsset_lbl_0e3d13\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_OperatingLeaseRightOfUseAsset\" xlink:to=\"us-gaap_OperatingLeaseRightOfUseAsset_lbl_ffb04e\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_OperatingLeaseRightOfUseAsset_lbl_0e3d13\" xml:lang=\"en-US\">Right of use asset - operating lease</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:label=\"us-gaap_OperatingLeaseRightOfUseAsset_lbl_ffb04e\" xml:lang=\"en-US\">Right of use asset - operating lease</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Assets\" xlink:label=\"us-gaap_Assets\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_Assets\" xlink:to=\"us-gaap_Assets_lbl_8b6cb1\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_Assets\" xlink:to=\"us-gaap_Assets_lbl_14\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:label=\"us-gaap_Assets_lbl_8b6cb1\" xml:lang=\"en-US\">Total assets</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_Assets_lbl_14\" xml:lang=\"en-US\">[Assets]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent\" xlink:label=\"us-gaap_LiabilitiesCurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_LiabilitiesCurrent\" xlink:to=\"us-gaap_LiabilitiesCurrent_lbl_ea4200\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_LiabilitiesCurrent\" xlink:to=\"us-gaap_LiabilitiesCurrent_lbl_22\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:label=\"us-gaap_LiabilitiesCurrent_lbl_ea4200\" xml:lang=\"en-US\">Total current liabilities</link:label>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_LiabilitiesCurrent_lbl_22\" xml:lang=\"en-US\">[Liabilities, Current]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TaxesPayableCurrent\" xlink:label=\"us-gaap_TaxesPayableCurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_TaxesPayableCurrent\" xlink:to=\"us-gaap_TaxesPayableCurrent_lbl_7be107\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_TaxesPayableCurrent_lbl_7be107\" xml:lang=\"en-US\">Income tax payable</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent\" xlink:label=\"us-gaap_PrepaidExpenseAndOtherAssetsCurrent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_PrepaidExpenseAndOtherAssetsCurrent\" xlink:to=\"us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl_2244d6\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl_2244d6\" xml:lang=\"en-US\">Prepaid expenses and other assets</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValue\" xlink:label=\"us-gaap_CommonStockValue\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_CommonStockValue\" xlink:to=\"us-gaap_CommonStockValue_lbl_1483c7\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_CommonStockValue_lbl_1483c7\" xml:lang=\"en-US\">Common stock, $0.001 par value; 150,000,000 shares authorized 96,178,153 and 94,360,107 shares issued and outstanding as of September 30, 2024 and December 31, 2023 respectively.</link:label>\n    <link:loc xlink:type=\"locator\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet\" xlink:label=\"us-gaap_FiniteLivedIntangibleAssetsNet\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_FiniteLivedIntangibleAssetsNet\" xlink:to=\"us-gaap_FiniteLivedIntangibleAssetsNet_lbl_00b933\" xlink:type=\"arc\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"us-gaap_FiniteLivedIntangibleAssetsNet\" xlink:to=\"us-gaap_FiniteLivedIntangibleAssetsNet_lbl_ba27bd\" xlink:type=\"arc\"/>\n    <link:label xlink:type=\"resource\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:label=\"us-gaap_FiniteLivedIntangibleAssetsNet\n\n##Instance document\n<?xml version='1.0' encoding='UTF-8'?>\n<xbrl xmlns=\"http://www.xbrl.org/2003/instance\" xmlns:dei=\"http://xbrl.sec.gov/dei/2024\" xmlns:iso4217=\"http://www.xbrl.org/2003/iso4217\" 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unitRef=\"USD\">-68698389</us-gaap:StockholdersEquity>\n\t<us-gaap:StockholdersEquity contextRef=\"AsOf2022-12-31\" decimals=\"0\" id=\"fid_1163\" unitRef=\"USD\">-7416859</us-gaap:StockholdersEquity>\n\t<us-gaap:StockholdersEquity contextRef=\"AsOf2023-03-31_meec_CommonSharesMember\" decimals=\"0\" id=\"fid_1187\" unitRef=\"USD\">94250</us-gaap:StockholdersEquity>\n\t<us-gaap:StockholdersEquity contextRef=\"AsOf2023-03-31_us-gaap_AdditionalPaidInCapitalMember\" decimals=\"0\" id=\"fid_1188\" unitRef=\"USD\">61546809</us-gaap:StockholdersEquity>\n\t<us-gaap:StockholdersEquity contextRef=\"AsOf2023-03-31_us-gaap_RetainedEarningsMember\" decimals=\"0\" id=\"fid_1189\" unitRef=\"USD\">-70145373</us-gaap:StockholdersEquity>\n\t<us-gaap:StockholdersEquity contextRef=\"AsOf2023-03-31\" decimals=\"0\" id=\"fid_1190\" unitRef=\"USD\">-8504314</us-gaap:StockholdersEquity>\n\t<us-gaap:StockholdersEquity contextRef=\"AsOf2023-06-30_meec_CommonSharesMember\" decimals=\"0\" id=\"fid_1209\" unitRef=\"USD\">94268</us-gaap:StockholdersEquity>\n\t<us-gaap:StockholdersEquity contextRef=\"AsOf2023-06-30_us-gaap_AdditionalPaidInCapitalMember\" decimals=\"0\" id=\"fid_1210\" unitRef=\"USD\">61684385</us-gaap:StockholdersEquity>\n\t<us-gaap:StockholdersEquity contextRef=\"AsOf2023-06-30_u\n\n##US GAAP Taxonomy\n[Concept Core]\nID: us-gaap:NotesPayableCurrent\nLabel: Notes Payable, Current\nType: xbrli:monetaryItemType | Balance: credit | PeriodType: instant | Abstract: False\nStatus: None | DeprecatedLabel: None | DeprecatedDate: None\nDocumentation:\nSum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.\n\nProvenance: file=GAAP_Taxonomy_2024.xlsx | sheet=Concepts | row=4346\n\n\n[Concept Core]\nID: us-gaap:LiabilitiesCurrent\nLabel: Liabilities, Current\nType: xbrli:monetaryItemType | Balance: credit | PeriodType: instant | Abstract: False\nStatus: None | DeprecatedLabel: None | DeprecatedDate: None\nDocumentation:\nTotal obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.\n\nProvenance: file=GAAP_Taxonomy_2024.xlsx | sheet=Concepts | row=1922\n\n\n[Concept Relations]\nID: us-gaap:NotesPayableCurrent\n\nPresentation:\n- Role: http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified-RealEstateOperations\n  Path: Notes Payable, Current [Abstract] > Notes Payable, Current\n  PreferredLabel: http://www.xbrl.org/2003/role/totalLabel\n- Role: http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  Path: Notes Payable, Current [Abstract] > Notes Payable, Current\n  PreferredLabel: http://www.xbrl.org/2003/role/totalLabel\n- Role: http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  Path: Notes Payable, Current > Notes Payable, Current, Related Party [Extensible Enumeration]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  Path: Notes Payable, Current > Notes Payable, Current, Related Party, Name [Extensible Enumeration]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/Debt\n  Path: Notes Payable, Current [Abstract] > Notes Payable, Current\n  PreferredLabel: http://www.xbrl.org/2003/role/totalLabel\n- Role: http://fasb.org/us-gaap/role/disclosure/Debt\n  Path: Notes Payable, Current and Noncurrent [Abstract] > Notes Payable, Current\n  PreferredLabel: None\nProvenance: sheets include Presentation-like sheets\n\n\n[Concept Relations]\nID: us-gaap:NotesPayableCurrent\n\nCalculation:\n- As Parent:\n  child=us-gaap:MediumtermNotesCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:ConvertibleNotesPayableCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:NotesPayableToBankCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:SeniorNotesCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:JuniorSubordinatedNotesCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:OtherNotesPayableCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n- As Child:\n  parent=us-gaap:NotesAndLoansPayableCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  parent=us-gaap:NotesPayable | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-DepositBasedOperationsFirstAlternate\nProvenance: sheets include Calculation-like sheets\n\n\n[Concept Relations]\nID: us-gaap:NotesPayableCurrent\n\nDefinition (Dimensions/Domain/Hypercube):\n- http://www.xbrl.org/2009/arcrole/dep-dimensionallyQualifiedConcept-deprecatedConcept: from=us-gaap:NotesPayableCurrent -> to=us-gaap:NotesPayableRelatedPartiesClassifiedCurrent (role=http://fasb.org/us-gaap/role/deprecated/deprecated)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NotesPayableCurrentAbstract -> to=us-gaap:NotesPayableCurrent (role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified-RealEstateOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NotesPayableCurrentAbstract -> to=us-gaap:NotesPayableCurrent (role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NotesPayableCurrent -> to=us-gaap:NotesPayableCurrentRelatedPartyTypeExtensibleEnumeration (role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NotesPayableCurrent -> to=us-gaap:NotesPayableCurrentRelatedPartyCounterpartyNameExtensibleEnumeration (role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedStatementTable)\nProvenance: sheets include Definition-like sheets\n\n\n[Concept Relations]\nID: us-gaap:LiabilitiesCurrent\n\nPresentation:\n- Role: http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified-RealEstateOperations\n  Path: Liabilities, Current [Abstract] > Liabilities, Current\n  PreferredLabel: http://www.xbrl.org/2003/role/totalLabel\n- Role: http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  Path: Liabilities, Current [Abstract] > Liabilities, Current\n  PreferredLabel: http://www.xbrl.org/2003/role/totalLabel\n- Role: http://fasb.org/us-gaap/role/disclosure/OrganizationConsolidationAndPresentationOfFinancialStatements\n  Path: Liabilities [Abstract] > Liabilities, Current\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/SECDisclosureSecurityRegisteredOrBeingRegistered\n  Path: Liabilities [Abstract] > Liabilities, Current\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/SECDisclosureSecurityRegisteredOrBeingRegistered\n  Path: Liabilities [Abstract] > Liabilities, Current\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/InvestmentsEquityMethodAndJointVentures\n  Path: Liabilities [Abstract] > Liabilities, Current\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/Reorganizations\n  Path: Reorganization, Chapter 11 [Line Items] > Liabilities, Current\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/AccountingPolicies\n  Path: Liabilities [Abstract] > Liabilities, Current\n  PreferredLabel: None\nProvenance: sheets include Presentation-like sheets\n\n\n[Concept Relations]\nID: us-gaap:LiabilitiesCurrent\n\nCalculation:\n- As Parent:\n  child=us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:DeferredRevenueCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:DebtCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:DeferredCompensationLiabilityCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:DeferredRentCreditCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:DerivativeInstrumentsAndHedgesLiabilities | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:RestructuringReserveCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:LiabilityForUncertainTaxPositionsCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:PostemploymentBenefitsLiabilityCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:SecuritiesLoaned | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:RegulatoryLiabilityCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:ProvisionForLossOnContracts | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:LitigationReserveCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:AccruedEnvironmentalLossContingenciesCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:AssetRetirementObligationCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:AccruedCappingClosurePostClosureAndEnvironmentalCosts | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:AccruedReclamationCostsCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:DeferredGasPurchasesCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:LiabilitiesOfBusinessTransferredUnderContractualArrangementCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsAmountCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:CustomerRefundLiabilityCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:SelfInsuranceReserveCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:ProgramRightsObligationsCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:BusinessCombinationContingentConsiderationLiabilityCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:OtherLiabilitiesCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n  child=us-gaap:GovernmentAssistanceLiabilityCurrent | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\n- As Child:\n  parent=us-gaap:Liabilities | weight=1 | role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified\nProvenance: sheets include Calculation-like sheets\n\n\n[Concept Relations]\nID: us-gaap:LiabilitiesCurrent\n\nDefinition (Dimensions/Domain/Hypercube):\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:LiabilitiesAbstract -> to=us-gaap:LiabilitiesCurrent (role=http://fasb.org/us-gaap/role/disclosure/OrganizationConsolidationAndPresentationOfFinancialStatementsScheduleOfVariableInterestEntitiesTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:LiabilitiesCurrentAbstract -> to=us-gaap:LiabilitiesCurrent (role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified-RealEstateOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:LiabilitiesCurrentAbstract -> to=us-gaap:LiabilitiesCurrent (role=http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:LiabilitiesAbstract -> to=us-gaap:LiabilitiesCurrent (role=http://fasb.org/us-gaap/role/disclosure/SECDisclosureSecurityRegisteredOrBeingRegisteredGuarantorAndIssuerGuaranteedSecurityTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:LiabilitiesAbstract -> to=us-gaap:LiabilitiesCurrent (role=http://fasb.org/us-gaap/role/disclosure/SECDisclosureSecurityRegisteredOrBeingRegisteredAffiliateCollateralizedSecurityTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:LiabilitiesAbstract -> to=us-gaap:LiabilitiesCurrent (role=http://fasb.org/us-gaap/role/disclosure/InvestmentsEquityMethodAndJointVenturesScheduleOfEquityMethodInvestmentsTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:ReorganizationChapter11LineItems -> to=us-gaap:LiabilitiesCurrent (role=http://fasb.org/us-gaap/role/disclosure/ReorganizationsFreshStartAdjustmentsTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:LiabilitiesAbstract -> to=us-gaap:LiabilitiesCurrent (role=http://fasb.org/us-gaap/role/disclosure/AccountingPoliciesScheduleOfVariableInterestEntitiesTable)\nProvenance: sheets include Definition-like sheets\n\n\n[Concept Relations]\nID: us-gaap:LiabilitiesCurrent\n\nReferences:\n- Reference Project:Taxonomy Technical Improvement | None | None\nProvenance: sheets include Reference-like sheets\n\nQuestion: What erroneous relationship type exists between us-gaap:NotesPayableCurrent and us-gaap:LiabilitiesCurrent, based on the provided XBRL filing and the US GAAP taxonomy?\nAnswer:\n\n    "

Answer: "Reversal"