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InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)PA
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177
Joined
2 yr. ago

  • I am on a small instance, so if i am not subbed, they will never make it to "ALL".

    I am still interested in the others that i am subbed to, but i want the very small ones to float to the top easier.

    I guess by NEW will help, but they will get flooded out by the larger comms that have more posts. catch-22

  • I am listening to a The Solar Insiders Podcast, which is interviewing the CEO of RayGen (thanks for intoducing it to me, really cool).

    the 70% is the efificency of the energy storage, which is similar to pumped hydro. ie, they put in 1MWh to the chiller, and will recover 0.7MWh from the organic rankin cycle turbine.

    so, they get the 30% of the solar (or whatever it is), plus the recovery of the heat. They were saying that for 1 tower, they get 1MW of solar and 2MW of heat. but they never said how much of the 2MW of heat gets converted to electricity, or what the efficiency is, but it sounds like they need to consume electricity to use the ORC (ie for the chiller).

    one other thing is that they ORCs can provide grid inertia which is a cool outcome too.

  • not to mention the lean process effed them during fukashima and covid, with a breakdown in logistics and a shortage of chips, meant that their entire mode of operating shut down, as they had no capacity to deal with any outages in any of their systems. Maybe that has happened again, just in server land.

  • i haven't read about your link yet, but as for storage, the study states

    82% of demand was directly powered by wind and solar without having to pass through storage or be curtailed

    so the majority of the energy is used without being stored, and having the round trip losses.

    ... now back to reading ray-gen

  • This simulation used 24GW/120GWh (five hours at average demand) and achieved 98.8% renewable supply at a cost of $95/MWh, including the cost of additional transmission, storage and curtailment.

    so they used a large number for storage. However, there is 7GW/33GWh of existing, under construction or financed BESS projects, and according to the study, 10GW/40GWh of storage will allow for 94% renewables, which is pretty bloody good.

    But yeah, it would be interesting to see BEV's assisting.