• humanspiral@lemmy.ca
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    3 hours ago

    Even in US, $100/kwh retail battery price points with bms, 48v, exist. Utility scale in rest of world is much cheaper. China is $51/kwh for a containerized full battery solution with (4 hour) inverter. At 7% ROI (to pay for full 30 year mortgage on LFP batteries as that is their life expectancy at slow charge/discharge rates) means just 1c/kwh discharge profit is required to pay for $55/kwh batteries. Similar calculation for just 4 sun hours/day. $600/kw installation costs at 7% ROI, means 3c/kwh daytime electricity rates.

    There’s not just exponential growth as @Hellgruen@lemmy.zip pointed out, it is dumb to do anything else.

    • mirshafie@europe.pub
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      2 hours ago

      Ok man good luck with that. Since the economy is so overwhelmingly in your favor, we should see battery capacity outpace energy need growth any time now.

      • humanspiral@lemmy.ca
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        46 minutes ago

        Not sure if you are actually pretending its out of reach. China’s battery additions including EVs is 39% of massive electricity production increases. Rate of growth in battery sales about double while energy growth is 5-8% range. That is much easier for any country that isn’t the absolute global manufacturing nexus.