techiaith/bydtermcymru-tm-en-cy huggingface dataset:
English: Support and investment in these facilities unlocks potential to boost the economy both directly, from the greater use of the facilities, and indirectly through the opportunities that improved maritime transport infrastructure provide for other sectors (both nationally and internationally).
Welsh: Mae cefnogaeth a buddsoddiad yn y cyfleusterau hyn yn datgloi'r potensial i hybu'r economi yn uniongyrchol, trwy gynyddu'r defnydd o'r cyfleusterau, ac yn anuniongyrchol, trwy'r cyfleoedd mae gwell seilwaith trafnidiaeth forol yn eu darparu i sectorau eraill (yn genedlaethol ac yn rhyngwladol).
English: Planning authorities must consider the land use implications of the WNMP.
Welsh: Rhaid i awdurdodau cynllunio ystyried goblygiadau defnyddio tir WNMP.
English: Planning authorities should also consider and, where appropriate, promote ports, and their surrounding area, for inter-modal freight interchanges and strategic employment sites.
Welsh: Yn ogystal, dylai awdurdodau cynllunio ystyried ac, os yn briodol, hyrwyddo porthladdoedd a'r ardal o'u cwmpas ar gyfer cyfnewidfeydd llwythi rhyngfoddol a safleoedd cyflogaeth strategol.
English: Airports
Welsh: Meysydd Awyr
English: The Welsh Government supports the growth and enhancement of airports and their infrastructure in Wales and the improvement of transport links to them by road and rail, particularly those which improve public transport accessibility.
Welsh: Mae Llywodraeth Cymru'n cefnogi twf a gwelliannau i feysydd awyr a'u seilwaith yng Nghymru a gwelliannau i gysylltiadau trafnidiaeth iddynt, yn ffyrdd a rheilffyrdd, yn enwedig y rhai sy'n gwella hygyrchedd trafnidiaeth gyhoeddus.
English: Authorities should promote access to airports by sustainable transport, taking into account the existing and planned levels of public transport, and ensure environmental impacts, including airborne pollution, are fully taken into account.
Welsh: Dylai Awdurdodau hyrwyddo mynediad i feysydd awyr trwy drafnidiaeth gynaliadwy, gan ystyried lefelau presennol ac arfaethedig trafnidiaeth gyhoeddus, a sicrhau bod effeithiau amgylcheddol, gan gynnwys llygredd yn yr aer, yn cael eu hystyried yn llawn.
English: The Welsh Government's aim is for there to be an increase in freight moved by rail and water, rather than by road.
Welsh: Nod Llywodraeth Cymru yw cynyddu'r nwyddau sy'n cael eu cludo gan ar y rheilffyrdd ac ar y dŵr, yn hytrach na'r ffordd.
English: Planning authorities should promote sustainable freight transport options, including considering the potential for the carriage of freight by rail, water or pipeline rather than by road.
Welsh: Dylai awdurdodau cynllunio hyrwyddo opsiynau cludo nwyddau cynaliadwy, gan gynnwys ystyried y potensial i gludo ar y rheilffyrdd, ar y dŵr neu drwy bibell yn hytrach nag ar y ffordd.
English: Development plans should identify and, where appropriate, protect routes required for the sustainable movement of freight and protect existing transport infrastructure from encroachment from other types of development.
Welsh: Dylai cynllun datblygu nodi ac, os yn briodol, ddiogelu llwybrau sy'n ofynnol ar gyfer symud llwythi mewn ffordd gynaliadwy a diogelu seilwaith trafnidiaeth presennol rhag mathau eraill o ddatblygiad.
English: The same applies to other developments generating frequent road freight movements.
Welsh: Mae hyn yn berthnasol hefyd i ddatblygiadau eraill sy'n cynhyrchu symudiadau nwyddau cyson ar y ffordd.
English: Local authorities should also consider the feasibility of developing HGV hubs outside of city/town centres, where goods would be transferred to LGVs for the last leg of the freight journey.
Welsh: Yn ogystal, dylai awdurdodau lleol ystyried dichonoldeb datblygu hybiau HGV y tu allan i ganol dinasoedd/ trefi lle byddai nwyddau'n cael eu trosglwyddo i LGVs ar gyfer rhan olaf y daith.
English: This can have particularly significant impacts in urban areas, because of existing traffic congestion and airborne pollution.
Welsh: Gall hyn gael effeithiau sylweddol iawn mewn ardaloedd trefol, oherwydd tagfeydd traffig a llygredd aer.
English: Technical Advice Note 23:
Welsh: Gweler Nodyn Cyngor Technegol 23:
English: The planning system should ensure that the growth of output and employment in Wales as a whole is not constrained by a shortage of land for economic uses.
Welsh: Dylai'r system gynllunio sicrhau nad yw twf cynnyrch a chyflogaeth yng Nghymru yn cael ei gyfyngu gan brinder tir at ddefnyddiau economaidd.
English: The construction, energy, minerals, waste and telecommunications sectors are also essential to the economy and are sensitive to planning policy.
Welsh: Mae'r sectorau adeiladu, ynni, mwynau, gwastraff a thelathrebu yn hollbwysig hefyd i'r economi ac yn sensitif i bolisi cynllunio.
English: This section focuses primarily on traditional employment land uses (B1, B2 and B8) while policies on other economic sectors are found elsewhere in PPW.
Welsh: Mae'r adran hon yn canolbwyntio'n bennaf ar ddefnyddiau tir cyflogaeth traddodiadol (B1, B2 a B8), tra bod polisïau ar sectorau economaidd eraill i'w gweld mewn mannau eraill yn PCC.
English: Providing Sufficient Land Needed by the Market
Welsh: Darparu Digon o Dir Fel Sydd ei Angen gan y Farchnad
English: Development plans should identify employment land requirements, allocate an appropriate mix of sites to meet need and provide a framework for the protection of existing employment sites of strategic and local importance.
Welsh: Dylai cynlluniau datblygu nodi'r gofyn am dir cyflogaeth, dyrannu cymysgedd priodol o safleoedd i ateb y galw a llunio fframwaith ar gyfer diogelu safleoedd cyflogaeth o bwys strategol a lleol.
English: Sites identified for employment use in a development plan should be protected from inappropriate development.
Welsh: Dylai safleoedd a nodir at ddefnydd cyflogaeth mewn cynllun datblygu gael eu diogelu rhag datblygiad amhriodol.
English: Practice Guidance: Building an Economic Development Evidence Base to support a Local Development Plan
Welsh: Gweler Canllawiau
English: Policy mechanisms, such as LDOs, will be of particular significance for local authorities which have Enterprise Zones.
Welsh: Bydd mecanweithiau polisi, fel LDOs, yn hynod arwyddocaol i'r awdurdodau lleol sydd ag Ardaloedd Menter.
English: Welsh Government Circular 03/2012 - Guidance on using a Local Development Order, April 2012
Welsh: Cylchlythyr 03/2012 Llywodraeth Cymru - Canllawiau ar ddefnyddio gorchmynion datblygu lleol
English: Economic Evidence and Employment
Welsh: Tystiolaeth Economaidd ac Adolygiadau
English: Land Reviews
Welsh: Tir Cyflogaeth
English: It is important that such evidence demonstrates the suitability of the existing employment land supply as well as future provision in relation to the locational and development requirements of business.
Welsh: Mae'n bwysig bod tystiolaeth o'r fath yn dangos addasrwydd y cyflenwad presennol o dir cyflogaeth, ynghyd â darpariaeth i'r dyfodol, mewn perthynas â gofynion lleoliadol a datblygiadol y busnes.
English: This should be calculated for offices, industrial and warehouse uses separately.
Welsh: Dylid ei gyfrif ar gyfer swyddfeydd, diwydiant a warysau ar wahân.
English: This evidence should help inform an economic vision for the area.
Welsh: Dylai'r dystiolaeth hon helpu i lywio gweledigaeth economaidd ar gyfer yr ardal.
English: Employment Land Reviews should be kept up to date and relevant to prevailing market conditions and the needs of the development plan.
Welsh: Dylid cadw Adolygiadau Tir Cyflogaeth yn gyfredol ac yn berthnasol i amodau'r farchnad ac anghenion y cynllun datblygu.
English: Steering Economic Development to the Most Appropriate Locations
Welsh: Llywio Datblygu Economaidd i'r Lleoliadau Mwyaf Priodol
English: Careful consideration should be given to the attributes of strategic employment sites to ensure that they have unique selling points and provide a differentiated offer across the region.
Welsh: Dylid rhoi ystyriaeth ofalus i nodweddion safleoedd cyflogaeth strategol er mwyn sicrhau bod ganddynt rinweddau unigryw a'u bod yn darparu cynnig gwahaniaethol ar draws y rhanbarth.
English: Not every local authority should designate strategic employment sites and by virtue of their nature these sites should be protected from alternative non employment uses.
Welsh: Ni ddylai pob awdurdod lleol ddynodi safle cyflogaeth strategol strategol a dylid diogelu'r safleoedd hyn am eu rhinweddau rhag eu defnyddio at ddibenion heblaw gwaith.
English: Travel-to-work patterns do not reflect local authority boundaries and it is essential that planning authorities identify and make adequate provision, for their role in the regional and sub-regional economies of Wales.
Welsh: Dylai'r cynllun datblygu adlewyrchu gwaith rhwng awdurdodau cyfagos a rhanddeiliaid perthnasol eraill. Nid yw patrymau teithio i'r gwaith yn adlewyrchu ffiniau awdurdod lleol, ac mae'n hollbwysig bod awdurdodau cynllunio yn nodi a gwneud darpariaeth ddigonol ar gyfer eu rôl yn economïau rhanbarthol ac is-ranbarthol Cymru.
English: support national, regional, and local economic policies and strategies;
Welsh: cefnogi polisïau a strategaethau economaidd cenedlaethol, rhanbarthol a lleol;
English: align jobs and services with housing and sustainable transport infrastructure, to reduce the need for travel, and dependency on travel by car;
Welsh: alinio swyddi a gwasanaethau â thai a seilwaith trafnidiaeth cynaliadwy, i leihau'r angen i deithio, a dibyniaeth ar deithio mewn car;
English: promote the re-use of previously developed, vacant and underused land;
Welsh: hyrwyddo ailddefnyddio tir a ddatblygwyd o'r blaen, tir gwag a thir sy'n cael ei danddefnyddio;
English: deliver physical regeneration and employment opportunities to disadvantaged communities;
Welsh: darparu cyfleoedd cyflogaeth ac adfywio ffisegol i gymunedau difreintiedig;
English: control and manage the release of unwanted employment sites to other uses;
Welsh: rheoli'r gwaith o ryddhau safleoedd cyflogaeth diangen at ddefnyddiau eraill;
English: propose specific locations for locally and strategically important industries which are detrimental to amenity and may be a source of pollution;
Welsh: cynnig lleoliadau penodol ar gyfer diwydiannau sy'n bwysig yn lleol ac o safbwynt strategol sy'n niweidiol i amwynder ac a all fod yn ffynhonnell llygredd;
English: identify protection zones around land and premises that hold hazardous substances and protect the ability of existing businesses to operate or expand by preventing the incremental development of vulnerable uses in the locality.
Welsh: nodi parthau gwarchod o gwmpas tir ac eiddo sy'n cadw sylweddau peryglus a diogelu gallu busnesau presennol i weithredu neu ehangu trwy atal datblygiad defnyddiau agored i niwed yn y cyffiniau.
English: Business Clusters
Welsh: Clystyrau Busnes
English: Often, clustering concerns high technology, innovative or research and development based companies, but may also include finance, food and media businesses, or supply industries serving larger manufacturers.
Welsh: Yn aml, mae clystyru'n ymwneud â chwmnïau uwch dechnoleg, arloesi neu ymchwil a datblygu, ond gall gynnwys hefyd fusnesau ariannol, bwyd a'r cyfryngau, neu ddiwydiannau cyflenwi sy'n gwasanaethu gweithgynhyrchwyr mwy.
English: Businesses can benefit from shared facilities, infrastructure, local pools of skilled and qualified labour, common supply chains and links to higher education.
Welsh: Mae busnesau'n gallu elwa ar gyfleusterau a rennir, seilwaith, llafur medrus a chymwys, cadwyni cyflenwi cyffredin a chysylltiadau ag addysg uwch.
English: Planning authorities should seek to support the development of business networks and clusters particularly in relation to innovative and technology based enterprise.
Welsh: Dylai awdurdodau cynllunio geisio cefnogi datblygiad rhwydweithiau busnes a chlystyrau, yn enwedig mewn perthynas â mentrau arloesi a thechnoleg.
English: Associated transport, environmental and telecommunications infrastructure links needed to support these networks and clusters and, where improvements are necessary, these should be included in the development plan.
Welsh: Dylai cysylltiadau seilwaith trafnidiaeth, amgylcheddol a thelathrebu cysylltiedig sydd eu hangen i gefnogi'r rhwydweithiau a'r clystyrau hyn ac i'w gwella lle bo angen, eu cynnwys yn y cynllun datblygu.
English: Planning authorities should also look favourably on any renewable and low carbon energy generation proposals designed to serve clusters, such as district heating systems and high efficiency energy recovery from waste, or the provision of an integrated network of waste recycling or collection.
Welsh: Dylai awdurdodau cynllunio edrych yn ffafriol ar unrhyw gynigion ar gyfer cynhyrchu ynni adnewyddadwy a charbon isel i wasanaethu clystyrau, megis systemau gwresogi ardal a systemau adfer ynni hynod effeithlon o wastraff, neu ddarparu rhwydwaith integredig o ailgylchu neu gasglu gwastraff.
English: Tourism can be a catalyst for regeneration, improvement of the built environment and environmental protection.
Welsh: Mae twristiaeth yn gallu bod yn gatalydd ar gyfer adfywio, gwella'r amgylchedd adeiledig a diogelu'r amgylchedd.
English: The planning system can also assist in enhancing the sense of place of an area which has intrinsic value and interest for tourism.
Welsh: Mae'r system gynllunio'n gallu helpu hefyd i wella'r ymdeimlad o le mewn ardal sydd â gwerth cynhenid a diddordeb i dwristiaeth.
English: In addition to supporting the continued success of existing tourist areas, appropriate tourism-related development in new destinations is encouraged.
Welsh: Yn ogystal â chefnogi llwyddiant parhaus ardaloedd twristiaeth presennol, anogir datblygiadau priodol sy'n gysylltiedig â thwristiaeth mewn cyrchfannau newydd.
English: In some places however there may be a need to limit new development to avoid damage to the environment or the amenity of residents and visitors.
Welsh: Mewn rhai mannau, fodd bynnag, efallai y bydd angen cyfyngu ar ddatblygiad newydd i osgoi difrod i'r amgylchedd neu i amwynder pobl leol ac ymwelwyr.
English: Here development should be sympathetic in nature and scale to the local environment.
Welsh: Yma, dylai datblygiad fod yn ystyriol o'r amgylchedd lleol o ran natur a maint.
English: There will be scope to develop well-designed tourist facilities in urban areas, particularly if they help bring about regeneration of former industrial areas.
Welsh: Bydd yna le i ddatblygu cyfleusterau twristiaeth wedi'u dylunio'n dda mewn ardaloedd trefol, yn enwedig os byddant yn helpu i adfywio hen ardaloedd diwydiannol.
English: The sensitive refurbishment and re-use of historic buildings also presents particular opportunities for tourism facilities in all areas
Welsh: Mae ailwampio ac ailddefnyddio adeiladau hanesyddol mewn ffordd sensitif yn cyflwyno cyfleoedd i gyfleusterau twristiaeth ym mhob ardal.
English: They should consider the scale and broad distribution of existing and proposed tourist attractions and enable complementary developments such as accommodation and access to be provided in ways which limit negative environmental impacts as well as consider the opportunities to enhance biodiversity.
Welsh: Dylent ystyried maint a dosbarthiad eang atyniadau presennol ac arfaethedig i dwristiaid a dylent sicrhau bod modd darparu datblygiadau cyflenwol megis llety a mynediad mewn ffyrdd sy'n cyfyngu ar yr effeithiau amgylcheddol negyddol yn ogystal ag ystyried y cyfleoedd i gyfoethogi bioamrywiaeth.
English: The establishment of new enterprises and the expansion of existing business is crucial to the growth and stability of rural areas.
Welsh: Mae sefydlu mentrau newydd ac ehangu busnes presennol yn hollbwysig i dwf a sefydlogrwydd ardaloedd gwledig.
English: Small-scale enterprises have a vital role to play in the rural economy, and contribute to both local and national competitiveness and prosperity.
Welsh: Mae gan fentrau ar raddfa fach gyfraniad pwysig i'w wneud at yr economi wledig, ac maent yn cyfrannu at gystadleurwydd a ffyniant lleol a chenedlaethol.
English: While some employment can be created in rural locations by the re-use of existing buildings
Welsh: Er y gall rhywfaint o gyflogaeth gael ei greu mewn lleoliadau gwledig trwy ailddefnyddio adeiladau presennol
English: Technical Advice Note 6, Planning for Sustainable Rural Communities, Welsh Assembly Government, 2010
Welsh: Nodyn Cyngor Technegol 6: Cynllunio ar gyfer Cymunedau Gwledig Cynaliadwy, Llywodraeth Cynulliad Cymru 2010
English: Technical Advice Note 23, Economic Development, Welsh Government, 2014
Welsh: Nodyn Cyngor Technegol 23, Datblygu Economaidd, Llywodraeth Cymru, 2014
English: However, some industries may have specific land requirements which cannot be accommodated within settlements.
Welsh: Fodd bynnag, efallai y bydd gan rai diwydiannau ofynion tir penodol na ellir darparu ar eu cyfer o fewn aneddiadau.
English: The absence of allocated employment sites should not prevent authorities from accommodating proposals for appropriate small-scale enterprises in or adjoining small rural settlements.
Welsh: Ni ddylai prinder safleoedd cyflogaeth wedi'u dyrannu atal awdurdodau rhag llunio cynigion ar gyfer mentrau priodol bach mewn aneddiadau gwledig bach cyfagos.
English: Planning authorities should include criteria based policy in development plans to consider such proposals when they are outside settlement boundaries.
Welsh: Dylai awdurdodau cynllunio gynnwys polisi meini prawf mewn cynlluniau datblygu i ystyried cynigion o'r fath os ydynt y tu allan i ffiniau anheddiad.
English: Whilst the protection of the open countryside should be maintained wherever possible, the expansion of existing businesses located in the open countryside should be supported provided there are no unacceptable impacts.
Welsh: Er y dylid diogelu cefn gwlad agored lle bo'n bosibl, dylai ehangiad busnesau presennol sydd wedi'u lleoli yng nghefn gwlad agored gael ei gefnogi, cyn belled nad oes unrhyw effeithiau annerbyniol.
English: Local authorities should encourage the growth of self-employment and micro businesses in rural areas by adopting a supportive and flexible approach to home working and associated change of use applications.
Welsh: Dylai awdurdodau lleol annog twf hunangyflogaeth a microfusnesau mewn ardaloedd gwledig trwy fabwysiadu ymagwedd gefnogol a hyblyg at weithio o gartref a cheisiadau newid defnydd cysylltiedig.
English: They should also adopt a positive approach to the conversion of rural buildings for business re-use.
Welsh: Dylent hefyd fabwysiadu ymagwedd gadarnhaol at drosi adeiladau gwledig i'w hailddefnyddio at ddiben busnes.
English: In particular, the cumulative impacts (including noise and air pollution) resulting from similar developments in the same area should be taken into account.
Welsh: Dylid yn arbennig ystyried effeithiau cronnus (gan gynnwys llygredd sŵn ac aer) datblygiadau tebyg yn yr un ardal.
English: Our priorities are:
Welsh: Ein blaenoriaethau yw:
English: reducing the amount of energy we use in Wales;
Welsh: lleihau faint o ynni rydym yn ei ddefnyddio yng Nghymru;
English: reducing our reliance on energy generated from fossil fuels;
Welsh: lleihau ein dibyniaeth ar ynni sy'n deillio o danwyddau ffosil;
English: actively managing the transition to a low carbon economy.
Welsh: mynd ati'n ddiwyd i reoli'r newid i economi carbon isel.
English: This means taking precautionary action to prevent Wales being 'locked in' to further fossil fuel extraction and high carbon development.
Welsh: Mae hyn yn golygu cymryd camau rhagofalus i atal Cymru rhag bod ynghlwm i gloddio mwy am danwydd ffosil a datblygiadau carbon uchel.
English: The planning system should facilitate delivery of both this and Welsh, UK and European targets on renewable energy.
Welsh: Dylai'r system gynllunio hwyluso hyn a thargedau Cymru, y DU ac Ewrop o ran ynni adnewyddadwy.
English: The continued extraction of fossil fuels will hinder progress towards achieving overall commitments to tackling climate change.
Welsh: Trwy barhau i godi tanwyddau ffosil, rydym yn atal cynnydd tuag at gyflawni ymrwymiadau cyffredinol i fynd i'r afael â'r newid yn yr hinsawdd.
English: The planning system should:
Welsh: Dylai'r system gynllunio:
English: integrate development with the provision of additional electricity grid network infrastructure;
Welsh: integreiddio datblygiad gyda darpariaeth seilwaith rhwydwaith grid trydan ychwanegol;
English: facilitate the integration of sustainable building design principles in new development;
Welsh: hwyluso'r broses o integreiddio egwyddorion dylunio adeiladau cynaliadwy mewn datblygiad newydd;
English: optimise the location of new developments to allow for efficient use of resources;
Welsh: sicrhau'r lleoliad gorau ar gyfer datblygiadau newydd i sicrhau bod adnoddau'n cael eu defnyddio'n effeithlon;
English: maximise renewable and low carbon energy generation;
Welsh: cynhyrchu ynni adnewyddadwy a charbon isel cymaint â phosibl;
English: maximise the use of local energy sources, such as district heating networks;
Welsh: sicrhau'r defnydd gorau posibl o ffynonellau ynni lleol, megis rhwydweithiau gwresogi ardal;
English: minimise the carbon impact of other energy generation;
Welsh: lleihau effaith carbon dulliau cynhyrchu ynni eraill;
English: move away from the extraction of energy minerals, the burning of which is carbon intensive.
Welsh: symud oddi wrth gloddio am fwynau ynni os yw'r broses yn cynhyrchu llawer o garbon.
English: Electricity Grid Network and Energy Storage
Welsh: Rhwydwaith Grid Trydan a Storio Ynni
English: However, it is recognised that a balanced view must be taken against costs which could render otherwise acceptable projects unviable.
Welsh: Fodd bynnag, cydnabyddir bod angen cymryd safbwynt cytbwys o ran costau, a allai olygu bod prosiectau a fyddai'n dderbyniol fel arall, yn anhyfyw.
English: Where undergrounding of lines is not possible or applicable, proactive
Welsh: Lle nad yw'n bosibl gosod llinellau o dan y ddaear mae angen ymgysylltu'n rhagweithiol gyda chwmnïau ynni a'r cyhoedd i liniaru effaith weledol unrhyw linellau trawsyrru newydd posibl.
English: Development plans should facilitate the grid infrastructure required to support the renewable and low carbon energy potential for the area, particularly areas identified for such development.
Welsh: Dylai cynlluniau datblygu hwyluso'r seilwaith grid sy'n ofynnol i gefnogi'r potensial ynni adnewyddadwy a charbon isel yn yr ardal, yn enwedig ardaloedd wedi'u dynodi ar gyfer datblygiad o'r fath.
English: Planning authorities should support appropriate grid developments, whether or not the developments to be connected are located within their authority.
Welsh: Dylai awdurdodau cynllunio gefnogi datblygiadau grid priodol, waeth a yw'r datblygiadau i'w cysylltu wedi'u lleoli yn eu hawdurdodau ai peidio.
English: This can also ensure investment plans for transmission and distribution align with the identified potential for renewable and low carbon energy.
Welsh: Gall hyn sicrhau hefyd fod cynlluniau buddsoddi ar gyfer trawsyrru a dosbarthu yn cyd-fynd â'r potensial a nodwyd ar gyfer ynni adnewyddadwy a charbon isel.
English: The growth in energy generation from renewable sources requires the management of the resultant intermittency in supply, and energy storage can help balance supply and demand.
Welsh: Er mwyn cynyddu cyfanswm yr ynni sy'n deillio o ffynonellau adnewyddadwy, mae angen delio â natur ysbeidiol y cyflenwad, a gall storio ynni helpu i sicrhau cydbwysedd rhwng y cyflenwad a'r galw.
English: Proposals for new storage facilities should be supported wherever possible.
Welsh: Dylid cefnogi cynigion ar gyfer cyfleusterau storio newydd lle medrir.
English: Energy Hierarchy for Planning
Welsh: Hierarchaeth Ynni ar gyfer Cynllunio
English: The Welsh Government expects all new development to mitigate the causes of climate change in accordance with the energy hierarchy for planning, as set out in the following energy policies.
Welsh: Mae Llywodraeth Cymru'n disgwyl i bob datblygiad newydd liniaru achosion newid yn yr hinsawdd yn unol â'r hierarchaeth ynni ar gyfer cynllunio, fel y'i dangosir yn y polisïau ynni canlynol.