If you only have solar + wind + batteries, you have a problem when you have a week of bad weather. Batteries can effectively move energy that’s produced at noon to the night but they are not cost effective for charging batteries in summer to be used in bad months in the winter.
If you only have solar + wind + batteries, you have a problem when you have a week of bad weather. Batteries can effectively move energy that’s produced at noon to the night but they are not cost effective for charging batteries in summer to be used in bad months in the winter.