High social acceptability: Installed far from inhabited areas, these facilities arouse less opposition.
Actually, being very close to inhabited areas, but 0 impact, including nonsensical nuissance arguments, means short power transmission. It’s also very easy to pair with offshore wind.
I would like to know what is the % of loss when storing power as any energy conversion is not lossless.
Cheap storage is more important than conversion ratio. Enough renewables leads to periods of negative prices without matching storage capacity. Storage can mean 1-2c/kwh charging costs, and even 50% efficiency makes discharged power 2-4c/kwh.
if 0.5m thick sphere, 30m diameter is 1413 m^3 of concrete. $300k to $400k in materials. Stores 150mwh power. About $2-$3/kwh
Wow, someone invented upside down pumped storage.
I think I understand how the battery where they drop a big weight down a mountain works; how do these work? Or how does it compare in effectiveness as I assume it’s probably the same principle?
It has a turbine inside it. It is not a cement ball, it is very misleading title. It’s a cement shaped hollow orb with a hydro power generator inside it.
Oh I’m sure some rich bastards will find a way to ruin it.
