Batteries, Green Energy Sources Combine for Major Climate Solution

FILE - A worker walks at Orsted's Eleven Mile Solar Center lithium-ion battery storage energy facility, Feb. 29, 2024, in Coolidge, Ariz. Batteries allow renewables to replace fossil fuels while keeping a flow of power when wind or solar are not producing. Mike Nutt, site manager, walks the campus at Orsted's Eleven Mile Solar Center lithium-ion battery storage energy facility, Feb. 29, 2024, in Coolidge, Ariz. Rows of solar panels sit at Orsted's Eleven Mile Solar Center lithium-ion battery storage energy facility Thursday, Feb. 29, 2024, in Coolidge, Ariz.

In the Arizona desert, a Danish company is building a massive solar farm that includes batteries that charge when the sun is shining and supply energy back to the electric grid when it's not.