• NotAnOtter@lemmus.org
      link
      fedilink
      English
      arrow-up
      0
      ·
      7 days ago

      The current most scalable way to do that is to give cities a budget to plant trees everywhere they can.

      I would love a $Billion in green energy research, but 1000 cities getting $Million budgets to plant thousands of trees and maintain them over the next 15 years would be better

      We should start buying farms in the Califoirnia Valley where they are essentially abusing water rights - and plant massive forests. It would take a fraction of the water to accomplish this and reduce desertification. Eat some of the smog from LA & SD, give the millions of residents a desert forest to camp in, and so on. Expensive plan but one I would vote for.

      • Kage520@lemmy.world
        link
        fedilink
        English
        arrow-up
        0
        ·
        7 days ago

        Not that this is a bad thought, it’s great and we should do that, but it’s not enough. We essentially burned the growth of millions of years of broken down stuff as oil, and that carbon went into the atmosphere. We need to retrieve millions of years of organic growth and put it back into the ground.

        I’ve seen ideas of seaweed farms with the purpose of growing them and then sinking them in the ocean depths to get them out of the cycle. I suspect something would learn to live off them though.

        If we had a way to make oil from the carbon in the air directly plus an energy input, and then a way to pump that back where we got it is what we need. Maybe there could be a crop that makes this conversion somehow. Like maybe grow something to make ethanol and then convert that. Labor and energy intensive but that’s what it will take since we just used all the energy.

      • WorldsDumbestMan@lemmy.today
        link
        fedilink
        English
        arrow-up
        0
        ·
        7 days ago

        I guess. I’m just sceptical that people will actually not cut them down later.

        I want carbon dioxyde turned into something less profitable to turn into coal again.

        • Agent641@lemmy.world
          link
          fedilink
          English
          arrow-up
          0
          ·
          7 days ago

          Trees have a life cycle, and city trees need maintenance.

          The most carbon negative thing would be to prune the trees throughout their lifetime to maximise canopy uplift and spread, which maximises ground shading. Shred the prunings and the dead trees and stuff the shreds into old decommissioned bulker ships, and sink the ships in the deep ocean, sequestering the carbon in the wood into an anoxic environment where it won’t rot.

          Tree shreddings being mulched into gardens just eventually rot and decompose back into CO2 through bacterial action.

          Sinking the densest logs of mature trees into the ocean would sequester that carbon for tens of thousands of years

          • borderstolutenfolk@lemmy.wtf
            link
            fedilink
            English
            arrow-up
            0
            ·
            7 days ago

            In old forests most co2 is absorbed by mycelium underground. Leave a varied forest alone and it will.tale care of this process on its own.

        • Obviouslywrong@lemmy.world
          link
          fedilink
          English
          arrow-up
          0
          ·
          7 days ago

          Cutting them down after a long period is fine. The real need is cooling and CO2 reduction over the next 20 years by which society should be mostly carbon neutral.

    • Agent641@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      8 days ago

      I have it on good authority that if you filter air though the corpse of a billionaire, much of the pollutants are removed.

    • TheStaffmaster@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      8 days ago

      Build 75m tall towers in every city and fill them basement to roof with hepa filters.

      Bring new meaning to the term “skyscraper”

  • ayyy@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    0
    ·
    8 days ago

    Independence from the billionaire fascists that want to control my energy is worth paying a premium for. The fact that it’s also cheaper is a nice bonus though.

    • BrightCandle@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      7 days ago

      Saving money on your bills is not like increasing your income, there is no tax on reducing your outgoings and depending where you are Solar pays off in about 5 to 7 years and your expecting it to be 80% as good at 25 years. In terms of capital investments its one of the most reliable places to put money and get a decent return. Annualised ROI is about 6% for that 25 years but then the panels are still going to work a lot longer just at a bit less output.

      • betanumerus@lemmy.ca
        link
        fedilink
        English
        arrow-up
        0
        ·
        edit-2
        8 days ago

        Generally yes. Although technically, there could be some species that won’t be affected by changing climates as much as us humans and our fragile infrastructure.

        My quip was mostly about the O&G industry constantly using “energy” to mean the “fossil fuels” subset.

  • lime!@feddit.nu
    link
    fedilink
    English
    arrow-up
    0
    ·
    9 days ago

    i wonder how this will affect the grid. it will for sure flatten out the curve during the day, maybe even leading to excess capacity we’d have to burn off. what magnitude of storage would we need to actually use all the extra power?

    • MoffKalast@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      9 days ago

      I don’t think one really has to burn off solar capacity? Just raise the inverter input to match the voltage and no current will flow. Would be kind pointless to waste the capacity though, I think Sweden or somewhere had success with melting salt with excess power.

    • Greyghoster@aussie.zone
      link
      fedilink
      English
      arrow-up
      0
      ·
      9 days ago

      Hmmm, this has been part of the debate since solar power started up. Batteries both grid and home size are being installed all over. The cost is falling rapidly and the grid forming batteries are providing all the services of a power station.

      • lime!@feddit.nu
        link
        fedilink
        English
        arrow-up
        0
        ·
        9 days ago

        there are still pretty big problems with them though, like materials and cost. i’d love it if every home could top up the grid but the forming inverters are bulky and costly for individuals. hopefully used traction batteries can start making up the difference in cost but personally i’d rather see more large-scale solutions like pumped hydro.

        also, anecdotally, as someone in a country where we were already basically fossil-free, with a 50-50 split between hydro and nuclear, installing more renewables has coincided with the grid becoming less stable. the rapid fluctuations in available power has seemingly driven up energy costs. i theorise it’s because larger variations in grid frequency is more taxing on the hardware.

        • NotMyOldRedditName@lemmy.world
          link
          fedilink
          English
          arrow-up
          0
          ·
          8 days ago

          the rapid fluctuations in available power has seemingly driven up energy costs. i theorise it’s because larger variations in grid frequency is more taxing on the hardware.

          You need batteries for this which in turn make things cheaper and more reliable overall.

              • lime!@feddit.nu
                link
                fedilink
                English
                arrow-up
                0
                ·
                8 days ago

                that here, there are no plans for integrating battery technology into the grid, no plans for where to get them, and no system to regulate their use. what we do have is lots of old pumped hydro facilities that were shut down because they were “not profitable enough”.

                • NotMyOldRedditName@lemmy.world
                  link
                  fedilink
                  English
                  arrow-up
                  0
                  ·
                  8 days ago

                  I mean ya, if you don’t have plans to do it, then it doesn’t happen, but batteries are what help stabalize solar/wind input. If they have decided to go into solar/wind and you’re having grid instabilities because of it, they should build batteries.

                  The batteries also help with the Nuclear plants since they often don’t run at full capacity overnight which is wasted energy as they need to spin them down. If you have batteries you can also be storing that during the evening, which means you need less solar during the day.

      • Hacksaw@lemmy.ca
        link
        fedilink
        English
        arrow-up
        0
        ·
        8 days ago

        Pumped hydro accounts for 95% of grid scale storage. It’s the only thing viable for significant energy storage with batteries taking on more of a capacitor role.

        • NotMyOldRedditName@lemmy.world
          link
          fedilink
          English
          arrow-up
          0
          ·
          edit-2
          8 days ago

          The reason pumped hydro is 95% (if that’s true) is because until very recently batteries weren’t a viable option and available in the scale required.

          That’s no longer the case. There’s limits to where you can do pumped hydro, but pretty much anywhere you can drop a solar array down, you can drop a substantial amount of batteries.

          Batteries are going to dwarf pumped hydro in the not so distant future.

          Edit: To put this into perspective, the USA has ~553 GWh of pumped storage. Tesla alone in the USA has 1 40GWh factory running, and a 50GWh factory about to come online, so they’ll have a yearly 90GWh install capacity, 130GWh if you include the China factory. Then there’s BYD, CATL, Panasonic and LG all doing battery storage, and things like Sodium batteries are about to come online at scale that are even cheaper.

          https://www.energy.gov/cmei/water/hydropower-market-reports (553 source)

          • Hacksaw@lemmy.ca
            link
            fedilink
            English
            arrow-up
            0
            ·
            8 days ago

            That’s because of capitalism. Pumped hydro has huge startup costs and a long payoff period, but runs basically forever. That’s not good next quarter stock market returns.

            Batteries are exactly the disposable need to be completely thrown out and re bought every 5-10 years that the private sector loves to sell the government.

            Pumped hydro beats batteries $/KwH before the first time you have to throw them all out every time.

            You talk about China, and they’re doing exactly what I said. They’re building pumped hydro capacities over 10x their battery storage capacity.

            https://oilprice.com/Alternative-Energy/Hydroelectric/China-Records-Hydropower-Boom-Amid-Power-Storage-Push.html

            Again I’m not against batteries they’re a great complimentary technology for surge demand and local backup. But nothing beats the simplicity and efficiency of moving water from a mountain Lake to a valley lake.

            • NotMyOldRedditName@lemmy.world
              link
              fedilink
              English
              arrow-up
              0
              ·
              8 days ago

              Commercial scale grid batteries last 15-20 years and can be deployed in months not years, and the permitting is dramatically less. The grid batteries will be up and earning profits before you even break ground on those pumped hydro locations.

              But yes I’m sure once you build the pumped hydro it can be cheaper over decades. Also unless they’re a closed loop system, they’re susceptible to drought which could impact their usage in the future.

    • ayyy@sh.itjust.works
      link
      fedilink
      English
      arrow-up
      0
      ·
      8 days ago

      Massively increased long-distance transmission lines between different climates are a must. A lot of investments are being made there but it turns out building thousands of miles of high voltage lines is a pretty slow process now that it isn’t the 50s and 60s.

    • kunaltyagi@programming.dev
      link
      fedilink
      English
      arrow-up
      0
      ·
      8 days ago

      My utility provider gives lower rates during 1000 to 1500. People are setting their washing machines (timers), air conditioner (house as a thermal battery), oven (not all stuff, but some) etc on a timer. I’m sure some companies could adjust their processes to take advantage of excess solar: run more equipment and harder in preferential times, etc.

      There are products like UPS+battery which are trying to add battery storage to well matched products and these might go a long way to provide a 1-5% storage for most houses and companies in future, just enough to tide over the duck curve in mornings and evenings.

      Hopefully the rest can be managed by the utility providers

  • Quacksalber@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    0
    ·
    9 days ago

    Lol what is that latest preduction? “Sure, solar production has risen like never before, but surely now the production will plateau.”

          • redjard@reddthat.com
            link
            fedilink
            English
            arrow-up
            0
            ·
            8 days ago

            Solar while day gas during the night is a very common scheme. Works well with solar and wind because gas turbines can spin up very quickly.
            LLM datacencers just don’t care about the environment, nor costs past a year or so and prioritize speed over everything. They can’t be bothered getting more land and permits for renewables.
            They’d be in the perfect position to cut their gas use in half with 2 years roi, or to two thirds or less with maybe 5 years roi. I suppose even they don’t think it can continue on like this.

    • aaa999@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      9 days ago

      listen, I have been wrong every time, but this time, when I make the same prediction that has been wrong every time previously, you’re gonna feel real dumb for doubting me

  • Eheran@lemmy.world
    link
    fedilink
    English
    arrow-up
    0
    ·
    9 days ago

    Are these selected bad predictions? I find it hard to believe some of them, but when they are cherry picked it would make sense.

      • khannie@lemmy.world
        link
        fedilink
        English
        arrow-up
        0
        ·
        8 days ago

        For the life of me I can never figure out how countries don’t see renewables, and solar in particular, as a national security issue.

        Distributed electricity? Yes please.

        • Coldcell@sh.itjust.works
          link
          fedilink
          English
          arrow-up
          0
          ·
          8 days ago

          They do, everyone does. The psychopaths in the oil industry lobby govrrnments for slow uptake, and literally kill people to stay where they are.

          • shalafi@lemmy.world
            link
            fedilink
            English
            arrow-up
            0
            ·
            8 days ago

            Were that the issue, home solar would be illegal wheras instead it was federally subsidized for years. The truth is simple, oil money buying politicians.

        • skarn@discuss.tchncs.de
          link
          fedilink
          English
          arrow-up
          0
          ·
          8 days ago

          I mostly agree, but all those cloud connected inverters talking to Chinese servers are giving me the heebie-jeebies.

    • kunaltyagi@programming.dev
      link
      fedilink
      English
      arrow-up
      0
      ·
      8 days ago

      The predictions aren’t even doing linear regression, feels like taking 10 year old data and fitting on current trend

      • tomi000@lemmy.world
        link
        fedilink
        English
        arrow-up
        0
        ·
        8 days ago

        Especially 2012-2020 seems ridiculous. “Its been an exponential growth until now but it will probably instantly stop here and stay constant”.

        • nilloc@discuss.tchncs.de
          link
          fedilink
          English
          arrow-up
          0
          ·
          7 days ago

          The US elected a guy and party that was hell bent cancelling subsidies and making installing solar and wind more expensive.

          Same happened with electric car adoption in the last 2 years.

    • Strider@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      8 days ago

      Exactly we’ve been held back massively by their propaganda, they should be punished for the damages they did and are still doing but who am I kidding…

  • apftwb@lemmy.world
    link
    fedilink
    English
    arrow-up
    0
    ·
    8 days ago

    Its almost like solar panels last forever and are easy to make at scale or something.

    • Psythik@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      8 days ago

      The only thing left to do is make them affordable and efficient. ~$2 per watt is ridiculous. Solar panels need to either get better at absorbing light, or the price needs to come down.

      • NotAHondaAccord@lemmy.blahaj.zone
        link
        fedilink
        English
        arrow-up
        0
        ·
        8 days ago

        Actual raw panel cost is way below that and has been for years. It’s the rest of the supporting infrastructure and critically the skilled labor required to install it that keeps the overall cost annoyingly sticky above $2/w

      • TheStaffmaster@lemmy.world
        link
        fedilink
        English
        arrow-up
        0
        ·
        8 days ago

        I recall that some asian country (I can’t remember if it was Japan or China) used recycled glass to make solar road tiles that work like chain LEDs. These were porous enough to let water seep through, yet strong enough to handle several years of being a road surface. The practical upshots of this are myriad; The dark color aids in snow melt, the tiles are easy to replace, and cheap to produce, they can have other infrastructure wired to their reverse side, such as data fibre, or even battery packs to store excess charge and most importantly, when applied at scale they are both the the power generator and distribution network combined. There was even talk of making them piezoelectric, so that traffic driving over them would also generate useable current.

      • Allero@lemmy.today
        link
        fedilink
        English
        arrow-up
        0
        ·
        8 days ago

        They already are affordable enough to be the cheapest source of energy in many places

        Cheapest as in “over the lifecycle”, not initial investment.

        • kugel7c@feddit.org
          link
          fedilink
          English
          arrow-up
          0
          ·
          8 days ago

          They are depending on your locale cheaper than fence panels of equivalent size. So building a fence from solar is cheaper than building a fence and it generates electricity.

  • rumba@lemmy.zip
    link
    fedilink
    English
    arrow-up
    0
    ·
    7 days ago

    Jan 1, 2027 Governments pay homeowners to stop introducing solar energy to the grid.

  • rizzothesmall@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    0
    ·
    8 days ago

    Who tf made that last prediction?

    Yeah I know it’s been growing exponentially over the last few years and the last prediction was higher than this and it blew through that one but I really think this is the absolute plateau. Maybe like 1MW more but that’s it …