Elon Musk announced that Tesla was getting into the energy business in 2015 and now it’s betting that it will become increasingly important for the company. In 2020, it surpassed 3 gigawatt hours of energy storage deployments in a single year, largely due to the popularity of Megapack, its utility-scale battery product. CNBC visited PG&E’s Tesla Megapack site in Moss Landing, California and learned why energy storage systems like Tesla’s could be everywhere in a future of renewable power. » Subscribe to CNBC: https://cnb.cx/SubscribeCNBC » Subscribe to CNBC TV: https://cnb.cx/SubscribeCNBCtelevision » Subscribe to CNBC Classic: https://cnb.cx/SubscribeCNBCclassic About CNBC: From 'Wall Street' to 'Main Street' to award winning original documentaries and Reality TV series, CNBC has you covered. Experience special sneak peeks of your favorite shows, exclusive video and more. Connect with CNBC News Online Get the latest news: https://www.cnbc.com/ Follow CNBC on LinkedIn: https://cnb.cx/LinkedInCNBC Follow CNBC News on Facebook: https://cnb.cx/LikeCNBC Follow CNBC News on Twitter: https://cnb.cx/FollowCNBC Follow CNBC News on Instagram: https://cnb.cx/InstagramCNBC Subscribe to CNBC PRO: https://cnb.cx/2NLi9AN #CNBC How Tesla Is Changing The Electrical Grid