The world’s biggest offshore wind farm, Hornsea 2, generates first power

Re:The world’s biggest offshore wind farm, Hornsea 2, genera... by gwright on Monday January 03, 2022 @10:09AM (#29781471)

I don't think the units are correct here. My observation has been that even reputable news sources seem to go all wonky with energy units.

I believe the appropriate units for consideration would be GWh = gigawatt-hours.

This article, https://www.environmentalleader.com/2021/01/worlds-largest-u..., suggests that the largest battery storage system is 1,200 MWh or 1.2GWh of storage (at a cost of $400 million)

For comparison, all generation capacity in California is 272,576 gigawatt-hours https://www.energy.ca.gov/data-reports/energy-almanac/califo...

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Re:The world’s biggest offshore wind farm, Hornsea 2, genera... by iso1631 on Tuesday January 04, 2022 @04:44AM (#29793052)

A grid battery has two numbers that are of interest

One is how many Joules it can deliver in a second (Giga/Mega/Kilo/watts)

One is how many Joules it can delivery completely (Giga/Mega/Kilo/watts) it can deliver

If I'm running my 10kW shower for 5 minutes, I can do that from a battery that only has 1kWh of storage, but I can't run it from a battery that can only deliver 1kW.

This is all high-school level science, and it's an indictment on the lack of diversity in news reporting how badly they get it wrong

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