Our Impact Assessment analysis considered two types of costs: installation and supply, and then calculated a cost benefit analysis of the two options over a 10-year period:
Gwnaeth ein Hasesiad o Effaith ystyried dau fath o gost: gosod a chyflenwi, gan wedyn ddadansoddi costau a buddion y ddau opsiwn dros gyfnod o 10 mlynedd: