• 0 Posts
  • 46 Comments
Joined 3 years ago
cake
Cake day: June 19th, 2023

help-circle








  • In this specific case I agree, not reporting CSA should be illegal (and probably is?) I’m not so sure that we should codify the current ethical understanding into law though.

    We need to leave room for development. Forcing new ideas to first go through the battle of legalization isn’t helpful in this regard. Laws are there to regulate what normal social regulation can’t do properly.

    I think people who cheat on their partners are morally speaking bad people. But writing into law you can’t have multiple partners at once is quite obviously a bad decision, because there are happy polyamourus relationships. The government doesn’t need to get involved here, being treated like the ass that you are for cheating is punishment enough, and leaves the room for developing new ways of living together.







  • Your tldr does not follow from any of the things you wrote above. Considering current energy densities it doesn’t seem unfeasible to me to build that storage. And I was honestly surprised how little space this would have taken back in 2020, not to mention that, again, this has been reduced by about 4x today. And it’s going to go down further. Your only argument here seems to be space and I don’t see that as a big problem. A few soccer fields worth of land distributed in the vicinity of each bigger city doesn’t seem like a lot to me.

    I do see your point that it is in the interest of fossil fuel to stop nuclear power from replacing them. But I don’t agree that we won’t be able to build an energy grid without fossile fuels. I believe we can have a grid without both of these technologies.

    You seem to be influenced by the “well we won’t do anything until we are already burning” mentality which is coincidentally pushed heavily by the fossil industry. It’s meant to defer people from believing that change is possible and taking action so we all stay at home and bicker about how cool it would have been if we started change 20 years ago.


  • Okay so your comparison has a few flaws there. The square meters I calculated were just a reference. The important thing is the volume taken up. If you stack your batteries only 1m high that’s gonna cover a lot of ground. You also completely failed to take into account that energy density has apparently 4x since 2020 which shrinks the required volume significantly.

    I’m gonna argue that 4000 of these facilities distributed around the whole USA isn’t that much. Spacewise the USA is in a very comfortable position compared to European countries.

    As for the price: taking the price for a pilot project and assuming that every facility is going to cost that is very wrong. If you’re going to build 4000 of them, cost is going to go way down.

    But if we are talking numbers here I too have a question. How much land would nuclear plants (and the intermediary storage and final storage for the waste) use to fulfill those 12TWh per year? And how much would those cost to build and maintain? I imagine that a battery facility is way cheaper to operate than a nuclear plant.



  • For the fun of it I did do the calculation. Berlin uses about 12TWh per year. That’s about 33GWh per day.

    Assuming an energy density of 450Wh/l (a number car batteries apparently were able to reach 2020) that’s about 80.000 m³.

    A soccer field is about 4000 m². So a space of 10 soccer fields with 20m high battery stacks would do that.

    Now assume that energy density will have improved in the last 4,5 years and that maybe storage batteries can be different from batteries in cars and that can go down by a lot. Seems reasonable enough for the biggest city in Germany.


  • The premise of powering a complete city just from one singular facility is a false one. It’s unnecessary to build such a facility. You can build multiple smaller ones to supply sectors of a city according to the needs of that sector. The answer also depends on how smart the usage of the power is. Are people using power when it’s available? Are people trying to use a lot of power when it’s not available but must come from storage? There are so many factors your scenario doesn’t take into account. The answer has to be: it depends.

    This also feels a lot like a gotcha question not posed in good faith. Because again: you won’t need to power anything solely from storage. Wind and sun will always supply a base level of energy.