Pa gyfran o orsafoedd rheilffordd a gwifrau uwchben yng Nghymru sy'n cael eu pweru'n llawn ar hyn o bryd gan ynni adnewyddadwy, ac o'r cyfanswm hwn pa gyfran sy'n cael ei phweru o ffynonellau yng Nghymru?
Wedi'i ateb gan Y Dirprwy Weinidog Newid Hinsawdd | Wedi'i ateb ar 28/02/2024
Transport for Wales have procured 100% renewable energy for all stations and overhead-line electrification for the infrastructure we own, with the contract prioritising Wales generated renewable energy. Rail infrastructure outside of the Core Valley Lines is a matter for the UK Government.