Re:Wind is main source of UK electricity for first time
by robocat on Thursday May 11, 2023 @05:16PM
(#35908491)
That article is completely mad. But it does admit the following:
The main drawbacks [of battery storage] are: At the moment, it has a much higher cost per kilowatt-hour of storage capacity. Much shorter lifespan.
If we consider Snowy Hydro 2’s maximum possible energy storage capacity, it comes to only $20 to $29 per kilowatt-hour
$5,000 [buys] 5.16 kilowatt-hours of Hornsdale storage
That is, Snowy Hydro is an order of magnitude cheaper for storage.
The article continuously harps on about kW comparisons, and ignores comparing kWh storage: foolish for an article supposedly about electricity storage. For example the article makes the inane point: “If Snowy Hydro 2 comes in at $10 billion, its cost per kilowatt of power output comes to… $5,000 per kilowatt. That’s not cheap. Gas generation normally comes to under $1,000 per kilowatt.”, and again “Snowy 2 Vs. Hornsdale: Assuming Snowy Hydro 2 costs $5,000 per kilowatt of power output, for that cost, we could instead buy . . .”.
The article continuously harps on about kW comparisons, and ignores comparing kWh storage: foolish for an article supposedly about electricity storage. For example the article makes the inane point: “If Snowy Hydro 2 comes in at $10 billion, its cost per kilowatt of power output comes to… $5,000 per kilowatt. That’s not cheap. Gas generation normally comes to under $1,000 per kilowatt.”, and again “Snowy 2 Vs. Hornsdale: Assuming Snowy Hydro 2 costs $5,000 per kilowatt of power output, for that cost, we could instead buy . . .”.
Utter rubbish.