Robin <mixent...@aussiebroadband.com.au> wrote:
> However, for > >large scale storage, hydrogen may have an edge. I wouldn't know about > that. > > I think it would, because the fuel/electrolysis cell itself is of fixed > size, and hence cost, whereas the cost of > hydrogen storage in a tank decreases per unit volume, with the size of the > tank. This is not true of batteries. > That's a good point. It resembles pumped storage with a large lake upstream. You can store as much as you like, with no increased cost per megawatt-hour for additional storage. (I guess if they had to compress the hydrogen gas in a storage tank, that might start costing more as the system approached capacity.) Speaking of wind power, they are building a GIGANTIC wind farm in the North Sea: https://doggerbank.com/ Here is an interesting document about the potential of offshore wind: https://www.iea.org/reports/offshore-wind-outlook-2019 Quote: ". . . offshore wind has the potential to generate more than 420 000 TWh per year worldwide. This is more than 18 times global electricity demand today."
