GssyLast 7 days' energy supply in South Australia. SA is running at over 80% renewables (yellow is solar, green is wind)
I should've written "electricity supply" because SA still imports liquid fuels, gas, fertiliser, manufactured goods, etc
Lee 🌏@wall0159 Looks like more Wind and storage needed to get to 100% Solar not so much?
@MrLee I think we are hitting diminishing returns for solarPV in South Australia at the moment. Probably, as we get more storage, implement load-shifting (from the night into the day) and electrify more of the economy, there will be increased demand for daytime solar.
For example, if green hydrogen (to make green steel, green ammonia, green fertilizer) gets going, that could absorb a *lot* of daytime solar.
Also, the new inter-connector with NSW will greatly increase demand for South Australian renewables (currently, the connector to Victoria is only ~700MW, limiting how much electricity SA can export)
For example, if green hydrogen (to make green steel, green ammonia, green fertilizer) gets going, that could absorb a *lot* of daytime solar.
Also, the new inter-connector with NSW will greatly increase demand for South Australian renewables (currently, the connector to Victoria is only ~700MW, limiting how much electricity SA can export)
@wall0159 It will be interesting when EVs arrive in big numbers and when V2G becomes ubiquitous. In the UK, they have found that the middle of the day is the most popular time to charge an EV, so perhaps more solar will get used.
@MrLee we do need more storage as well though ;-)
Peter Barnes@wall0159 If we could capture the hot air from Joyce and Canavan we’d make up the last 20%… The best thing is, they never stop, even at night.
jenqld@wall0159 Impressive 👌
Martin Vermeer FCD@wall0159 This seems to indicate that wind is curtailed when there is lots of sun in the daytime. Is that correct? Is anybody looking into what to do with that $0 electricity?
@martinvermeer it is being curtailed - in large part because South Australia's experts are quite limited. Electricity spot prices are often negative, so there's definitely an incentive to consume!
@wall0159 Or charge batteries.
@martinvermeer we have a few hundred MWh of batteries in SA, but that doesn't make a lot of difference. Would need 10x that or more to significantly reduce curtailing
@wall0159 The difference it makes is to reduce non-renewable use at times when renewables fall short, usually at nighttime, and thus CO2 emissions. Hope it will be expanded.