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Can Hoover Dam Become a Giant $3B Battery? (cleantechnica.com)

The Los Angeles Department of Water and Power wants to spend $3 billion to pump back the water that's flowing through Hoover Dam -- so it can flow through again later, during periods of peak energy demand. This generates a net profit for the dam's operators -- the pumping stations are powered by cheap solar and wind energy, while the dams are currently operating at just 20% of their capacity. An anonymous reader quotes Clean Technica: The problem is that California has so much renewable energy available now, thanks in large measure to aggressive state mandated policies, that much of it is "constrained." That's utility industry speak for having to give it away or simply let it go to waste. In some cases, utilities in California actually pay other utility companies to take the excess electricity off their hands.

Why not store it all in some of Elon Musk's grid scale batteries? Simply put, pumped hydroelectric storage is cheaper than battery storage, at least for now. Lazard, the financial advisory and asset management firm, estimates utility scale lithium-ion batteries cost 26 cents per kilowatt-hour compared with 15 cents for pumped hydro storage. "Hoover Dam is ideal for this," Kelly Sanders, an assistant professor of civil and environmental engineering at the University of Southern California tells the New York Times. "It's a gigantic plant. We don't have anything on the horizon as far as batteries of that magnitude."

3 of 219 comments (clear)

  1. Sorry, but I have to say it by R3d+M3rcury · · Score: 5, Funny

    "That's one dam expensive battery."

    I'll go home now.

  2. Perfect solution: Boil the ocean by goombah99 · · Score: 5, Funny

    Use the waste heat from bitcoin mining to boil the ocean. the covection will carry water up into the hills providing rain to prevent fires and the ground water will end up in lake mead where it can be used to make electricity to power the mining systems

    --
    Some drink at the fountain of knowledge. Others just gargle.
  3. Re:Well sort of, but you're missing a key point by blindseer · · Score: 4, Funny

    I've got a Chevy Citation that I'm going to use to run your stupid face over with. Go to wikipedo if you want.

    I did go to Wikipedia, that's how I found the citation I gave in my previous post. I'm curious how you came to believe nuclear to be orders of magnitude more expensive than wind and solar. I must have missed what you saw on Wikipedia. Help me out and point to where you found what you believe you found.

    You really are a useless cunt aren't you.

    That may also be true, but I'd like a citation on that as well.

    --
    I am armed because I am free. I am free because I am armed.