ash217's comments

On: Germany Power Prices Turn Deeply Negative on Renewables Surge

[ash217]

As if negative prices trickle down to the consumer. The electricity market is byzantine, rigged and has resulted in higher energy prices in the last 20 years.

[mcintyre1994 → ash217]

In the UK you can get energy plans with a price that updates every half hour, published a day ahead. From 12:30pm - 4pm today that price is negative. It was also negative for around 16 hours of Easter Sunday. https://www.octopriceuk.app/agile

[paule89 → mcintyre1994]

Well dynamic pricing only ever works until you have a power outage in the winter and suddenly you pay a years worth of money for the 1 hour you could use your fridge, during a snowstorm.

[wrxd → paule89]

It’s still capped at £1/kWh, which is a lot but also a price I’ve seen maybe for a few slots on a couple days in the last three years.

The price was known ~1 day in advance so I had the choice to fill up the battery with cheaper (but still high) prices overnight and reduce the impact

[manarth → paule89]

Consumer pricing in the UK is regulated with a price cap (per kWh), so consumers can't be fleeced in an unexpected event.

Business energy users aren't protected, so they buy long-term contracts, hedge, or go-under in the event of an unforeseen energy-shortage.

[HPsquared → paule89]

That's what batteries are for.

[Ekaros → paule89]

That is the trade off for renewables. Power is very expensive when needed and very cheap when not.

[leonidasrup → Ekaros]

Electric power is very expensive when demand is greater than supply, very cheap when supply is greater than demand.

[api → mcintyre1994]

Where’s profitable crypto mining when you need it?

Back yard plasma furnace? Artificial diamond making? Aluminum smelting?

[HPsquared → api]

Even just a large water tank which you can choose when to add heat.

https://en.wikipedia.org/wiki/Seasonal_thermal_energy_storag...

[leonidasrup → api]

There are may different energy storage systems.

https://en.wikipedia.org/wiki/Energy_storage

There have wildly different prices for unit of stored energy and wildly different storage times.

https://css.umich.edu/publications/factsheets/energy/us-grid...

It's not cost effective run aluminum smelting only during peak electricity production.

[rcxdude → api]

You need something that's valuable, energy intensive, easy to stop and start, and cheap to build capacity for. Either or both of those last two tend to be the problem for most industrial processes (and also crypto mining).

[bombcar → ash217]

You don't have a backyard aluminium smelter?

https://en.wikipedia.org/wiki/Aluminium_smelting#Energy_use

[testing22321 → ash217]

A very large percentage of Australians are about to start getting free power for three hours a day [1].

So yes, it sure does!

[1] https://www.newscientist.com/article/2503532-australia-is-ge...