• zxqwas@lemmy.world
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    21 hours ago

    When the price goes up it’s because the renewables don’t produce power when there is no wind and sun (which pretty much sums up January here). Building more of something that does not produce power is not going to help with the price shocks.

    We need to figure out grid scale storage, fusion or build nuclear power to get rid of fossil fuels. Until then utility bills will be occasionally more shocking than jamming a fork in the outlet.

    • OwOarchist@pawb.social
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      19 hours ago

      figure out grid scale storage, fusion or build nuclear power

      You don’t necessarily need that, actually. Another option is to invest in a larger, wider grid with more interconnects and more long-range transmission capacity.

      Maybe the sun isn’t shining and the wind isn’t blowing where you are … but the sun is shining somewhere, and the wind is blowing somewhere. If you can transmit the power from those places to where you are (and vice versa) then you really don’t need nearly as much storage capacity or continuous generation. If you can transmit power from farther away, that can really help even out the random variability in renewable power sources by averaging them out over a much wider area.


      Another often-overlooked constant source of renewable energy is geothermal. Geothermal power plants can be extremely green and efficient, and their power capacity basically never changes at all. They’re only viable in certain places that have geothermal hot spots, of course … but once again, you can solve that by increasing long-range transmission capacity. Build massive geothermal plants in the few places where they’re viable, and then transmit that power to all the places where geothermal isn’t viable.

      • zxqwas@lemmy.world
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        13 hours ago

        I know storage is almost viable and i read articles about improved battery technology monthly, nuclear we know works, fusion has been a decade away for the last 50 years. But what transmission technology do we have coming that makes it a contender?

        • OwOarchist@pawb.social
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          13 hours ago

          Transmission doesn’t really require any new technology that’s not already in use. Just need to build more of what we already use every day. More high tension power lines, over longer distances, more interconnects between grids, more capacity in those interconnects.

          If you really want to go full power on this (and especially if you want your solar power to be continuous generation 24/7) you’ll need to develop a bit of new tech. Well, not so much new tech as just scaling existing tech to be massive. A truly gargantuan transmission line across the Bering Strait could link the two hemispheres into a single worldwide grid. (Though Australia and other more isolated islands might still have to have separate grids and couldn’t take advantage of this as ‘easily’.) If you build that, then you can have a global power grid that the sun is shining on 24 hours a day, so even if solar power was your only power source and even if you had no grid storage capacity, the power grid could still operate all day every day, with that big hemisphere interconnect transmitting power from the day side to the night side, switching direction of flow twice a day.

          i read articles about improved battery technology monthly

          For grid-level energy storage, we don’t really need any new battery technology. Yes, it might be nice to have cheaper, greener, higher-capacity, more durable batteries, but we don’t need that to make grid-scale storage work. Even our lunky old lead-acid batteries that have been around for over 100 years would do just fine. We just need to build MORE of them. Like, a lot more. (Plus chargers and inverters to change the AC grid power to storable DC and back again.)

          But lead-acid batteries have limited life cycles!

          They do. But you don’t throw them away when they reach the end of their life cycle – you recycle them. Even completely worn-out and absolutely useless lead-acid batteries can be recycled, recovering 99% of the materials in them. And you can use those materials to build fresh new batteries, likely on a massive scale, running continuously, always recycling the oldest batteries on the grid and shipping out fresh newly made batteries to replace them. Aside from the energy the recycling (and transportation) processes use, it’s pretty much a closed loop system. Recycling and replacing the batteries just becomes a regular maintenance task.