Croeso i Ofgem - rheoleiddiwr ynni Prydain Fawr

Darllenwch am eich hawliau ynni yn ein canllawiau am gyflenwad nwy a thrydan yn y cartref. Gallwch hefyd gael cyngor os bydd angen help ychwanegol arnoch, os byddwch yn cael anhawster â’ch cyflenwad neu os byddwch am gwyno. Mae hyn yn cynnwys gwybodaeth am pa bryd y gall sefydliadau fel Cyngor ar Bopeth a’r Ombwdsmon Ynni helpu pan aiff pethau o chwith.

Gall ein hawgrymiadau ar newid cyflenwyr, grantiau’r llywodraeth, budd-daliadau a chynlluniau effeithlonrwydd ynni eich helpu i arbed arian a bod yn fwy gwyrdd o ran eich defnydd o ynni hefyd.

Many thousands of people and businesses across Great Britain and Northern Ireland take part in our renewable energy schemes, reducing carbon emissions and supporting the journey to net zero. Our social schemes, such as the Warm Home Discount, help tackle fuel poverty by supporting those who need it most.

Our scheme pages tell you all need to know whether you are an applicant, an existing participant, an energy supplier or an installer of renewable energy equipment and measures.

Mewngofnodi i gyfrif eich cynllun amgylcheddol – MyRHI, Cofrestr RHI, y gofrestr Ynni Adnewyddadwy a Gwres a Phŵer Cyfunedig a'r Gofrestr Rhwymedigaeth Cwmnïau Ynni.

We protect energy consumers, especially vulnerable people, by ensuring they are treated fairly and benefit from a cleaner, greener environment.

Our policy and regulatory work is designed to support this underlying objective. Our energy policy and regulation section contains comprehensive information about the programmes we run, the licences we administer and the decisions we take regarding the companies and sectors we regulate.