The energy department said wind and solar capacity is ‘worthless’ without sunlight or wind. Elon Musk reminds DoE about batteries: ‘Um… hello?’ – Fortune By Sunfazza The energy department said wind and solar capacity is ‘worthless’ without sunlight or wind. Elon Musk reminds DoE about batteries: ‘Um… hello?’ Fortune Brought to you by Google News. Read the rest of the article here