The total amount of electricity generated from renewable resources in Wales has been steadily increasing, rising by 9% between 2012 and 2013, which is mainly due to the increase in wind generation.
Mae cyfanswm y trydan a gynhyrchir o adnoddau adnewyddadwy yng Nghymru wedi cynyddu'n raddol, yn codi gan 9% rhwng 2012 a 2013, sydd yn bennaf oherwydd y cynnydd mewn cynhyrchu gwynt.