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Supply and demand (slrpnk.net)
submitted 4 months ago by [M] to c/memes@slrpnk.net
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[–] 6 points 4 months ago (2 children)

The economics of that are great. Negative power prices are an incentive to store energy and get payed for that. Then release the energy again later in the day or at night to earn money on it again.

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  • [–] 2 points 4 months ago (1 child)

    Yes, and plenty of companies are doing just that. The effect is that as they charge the batteries, they increase demand and that increases the electricity price a bit. Grid doesn't tip over and everybody wins!

    Trouble is that at some point they run out of batteries. Batteries are expensive. And when they run out of batteries, the demand drops and the grid has to figure out where to dump the excess. And the price drops again.

    Pumped hydro is a more scalable solution, but it's slow to react and even that has its limits.

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  • [–] 2 points 4 months ago (1 child)

    What you are saying is factually correct, why the down votes I don't understand.

    Load dumping is not really a big problem as any fail over solutions have some dumping capacity. Just let it heat a big ass resistor somewhere.

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  • [–] 2 points 4 months ago

    Then release the energy again later in the day or at night to earn money on it again.

    This process is called "arbitrage" btw. Take one thing when it's cheap and sell it some other time/place where it's valued at a higher cost, and make a profit that way. It's one of the foundations of trade in general.

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