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If you like the idea of sun-powered electricity, you'll warm right up to the idea of residential solar water heaters. Here's what you need to know.

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California's, and the world's, largest battery energy storage facility was just green-lit for Fresno County. The Darden project also includes a solar farm.

Elon Musk criticized a Senate draft bill on his 54th birthday, claiming it would destroy millions of jobs by raising taxes on wind and solar projects not yet under construction.

Fulfill all your on-the-go power needs with the best portable solar panels of the year.

After testing 13 water flossers over the last two-plus years, we found that the Waterpik Aquarius is the best water flosser overall.

Want to observe the sun or watch the next solar eclipse in safety? We've rounded up the telescopes you need to see our nearest star safely.