this post was submitted on 01 Oct 2025
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That's actually a problem.
All realistic plans for 100% renewable (or even 95% renewable, which is substantially easier) rely on a multipronged approach of wind, water, solar, and grid upgrades. Each one has upsides and downsides, but you can use the upsides of one to cover the downsides of another. Combined, you get a reliable grid based on intermittent but cheap sources.
Capitalism sees this plan and decides to deploy the one with the best immediate ROI. Which happens to be solar. Problem is that you can't just rely on solar. The grid is hitting limits where electrical production is sending prices to basically zero at certain times, but not able to provide enough the rest of the time. That will shift the economic incentives. Eventually.
It'll figure out what researchers have already written down, but it'll take too long to get there.
SoCal has a huge amount of wind and solar right now. Utility sized battery installations are going in to deal with the times those two aren't producing.
Even home battery solutions. We have solar panels & a Powerwall. Were part of a Virtual Power Plant along with around 1500 other Powerwall owners in the region. During peak usage in the summer all our PowerWalls feed back to the grid so that our utility provider doesn’t have to spin up expensive (and dirty) peaker plants. We get paid a premium for the power we provide during these events.
I saw articles here on Lemmy just a month or two ago that Tesla successfully tested a VPP in California that consisted of 100,000 PowerWalls.
While your power company is taking your power from your battery, where does your power to power your house come from? How much do you pay for it, what are your daily charges etc?
Our house is still powered by the panels and/or battery as well. We typically use 1 to 5 kWh, and during these events the batteries are discharging up to 10 kWh. Whatever we don’t use goes to the grid. Last year we received a payout of $1450 for 45 hours worth of energy, probably in the neighborhood of 300-350 kWh.
You get $4/kWh?! We get 2c here in Australia lol