-17% -25% -21% -19% -16% -15% -16% -14% -24% -21% -32% -19% -18% -40% -31% -21% -25% 39% 18% 18% 25% 20% 20% 15% 20% 25% 20% 25%
Table 12 - Summary of CSS Data for Commercial Air Conditioner Efficiency Baselines Figure 5 - Histogram of AC Unit Age from Claims Made for SCE's Packaged HVAC Early Retirement Program (claim years 2013 through 2016) Table 13 - Pre-Existing Model Parameters for Nonresidential Cooling Efficiency Measure Vintages Affected DEER2015 Baseline New Baseline Code/ Standard Split AC < 65 kBtu/hr Thru 2001 10 11.5 14 Pkg AC, < 65 kBtu/hr Thru 2001 9.7 11.6 14 Split/Pkg AC, 65 to < 135 kBtu/hr Thru 2009 10.1 10.0 11.0 Split/Pkg AC, 135 to < 240 kBtu/hr Thru 2009 9.5 9.7 10.8 Pkg CV 240 to < 760 kBtu/hr Thru 2009 9.3 9.8 10.0 Pkg VAV 240 to < 760 kBtu/hr Thru 2009 9.5 10.0 10.0 Pkg VAV >= 760 kBtu/hr Thru 2009 9.2 no change 9.7 Another important result gleaned from the SCE Packaged HVAC Early Retirement Claims is the prevalence of constant volume systems and variable volume systems for the larger equipment size categories. Table 14 shows the total equipment capacity from claims, organized by equipment vintage and by type of equipment. For the largest equipment size category, there were no constant volume systems. For the 240 to 760 kBtu/hr size range, 80% of systems that could be identified were variable volume. For the 135 to 240 kBtu/hr size range, only 8% were variable volume. Based on this data, constant volume systems in the largest size range have existing
Ex Any NR Nonresidential Linear Fluorescent: measures not listed elsewhere; deemed; all delivery mechanisms 0.6 0.2 Ex Any NR Custom Natural Gas Measures (that may have electric savings due to the natural gas measures) 0.5 0.5 Any NR All package HVAC AC and HP replacements with downstream incentives 0.6 0.75 Ex Any NR Custom Electric Measures (that may have natural gas impacts due to the electric measures) 0.6 0.5 NonRes-sAll-mCust Ex Any NR Custom Mixed Electric and Natural Gas Measures 0.6 0.5 NonRes-sAll-mLtg-ci Ex Any NR Nonresidential Lighting: all technologies except screw-in lamps; custom; all delivery mechanisms 0.55 0.2 Ex Any All chiller replacements - space cooling applications 0.58 0.5 Com-Default>2yrs Ex Any All other EEMs with no evaluated NTGR; existing EEM in programs with same delivery mechanism for more than 2 years 0.6 0.5 Com-Default-HTR-di Ex Any All other EEM with no evaluated NTGR; direct install to hard-to-reach only. 0.85 0.5 Ex All K-12 and community college projects 0.85 0.5
Agric-Sprklr-All Ex Any Ag Agricultural water conserving sprinkler technologies; deemed; all delivery mechanisms except upstream 0.4 0.5 NonRes-sAg-mCust-ci Ex Any Ag All other custom either electric or natural gas measures 0.7 0.5 Agric-Default>2yrs Ex Any Ag All other EEMs with no evaluated NTGR; existing EEM in programs with same delivery mechanism for more than 2 years 0.6 0.5 Ex Any Ag All other EEM with no evaluated NTGR; direct install to hard-to-reach only. 0.85 0.5 Ind-Default>2yrs Ex Any Ind All other EEMs with no evaluated NTGR; existing EEM in programs with same delivery mechanism for more than 2 years 0.6 0.5 Ind-Default-HTR-di Ex Any Ind All other EEM with no evaluated NTGR; direct install to hard-to-reach only. 0.85 0.5 All-Default<=2yrs Ex Any All other EEM with no evaluated NTGR; new technology in program for 2 or fewer years 0.7 0.5 ET-Default Ex Any Emerging Technologies approved by ED through work paper review 0.85 0.5 Ex Any All programs targeting local T&D or generation constrained area 0.85 0.5 Background on Development of NTG Adjustments for To-Code Savings
Table 28 - Distribution of Program Claim Data into Groups for Simulation Expansion Valve Level Charge Adjustment Type Charge Adjustment Range # in bin Percent of Samples Average Adjustment in Range TXV Typical Remove -50% to -4% 1,003 7% -7.0% Non-TXV Typical Remove -50% to 4% 1,203 8% -7.5% TXV Typical Add 4% to 50% 1,187 8% 8.5% Non-TXV Typical Add 4% to 50% 10,869 76% 10.0% TXV Low Add 4% to 5% 270 2% 4.5% Non-TXV Low Add 4% to 5% 1590 11% 4.5% TXV High Add to 50% 247 2% 17.0% Non-TXV High Add to 50% 4,281 30% 16.0% Table 29 - Measure Adjustment Assumptions and Weights from DEER2014 Level Charge Adjustment Type Charge Adjustment Range Measure Weight Average Adjustment in Range Typical Remove 0 to -11.2% Typical Add 0 to 12.5% High Remove -50% to 4% 25% -33% High Add 4% to 50% 25% +30% The average adjustment values from Table 28 were used along with the findings from the HVAC-5 lab test results to update the DEER refrigerant charge measures for non-residential buildings with new model parameters as listed in Table 30. Table 30 - Updated Parameters for Non-Residential Refrigerant Charge Adjustment Measure Valve Cap Mult EIR Mult Sens Cap Mult Coil Bypass Mult Measure Condition Type prev 2018 prev 2018 prev 2018 prev 2018 Typical 0.902 1.013 1.153 1.003 0.951 1.015 1.000 0.947