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>Last I checked solar without batteries is roughly the same price per Kw as nuclear Checked where? Lazard says it is one fifth of the price. >There’s a huge d
by pydry 2y ago
>Last I checked solar without batteries is roughly the same price per Kw as nuclear
Checked where? Lazard says it is one fifth of the price.
>There’s a huge difference in capability though because nuclear is 24/7 peak availability which solar can’t do
Not 24/7. They have to be turned off for maintenance and when that happens e.g. France burns an awful lot of gas.
Pair solar with wind and storage and it's still cheaper than raw, nuclear power and would be even if matching storage were 4x the cost.
- UltraSane 2y agoA key metric that controls the cost is just how much storage do we want? 4 hours? 1 day? 1 week?
- pydry 2y agohttps://reneweconomy.com.au/a-near-100-per-cent-renewables-grid-is-well-within-reach-and-with-little-storage/ https://reneweconomy.com.au/a-near-100-per-cent-renewables-g...
- UltraSane 2y agoVery interesting. But having no dispatchable power generation other than 5 hours of storage runs a real risk of local or national outages during rare prolonged wind and solar shortfalls.
- pydry 2y agoOn the sunniest windiest days when wind and solar is massively overproducing we can synthesize natural gas or hydrogen. That can be used to fill in the gaps for the last 1-3% of energy. The rountrip efficiency of this is shit (~40% compared to 90% for pumped storage or batteries) but the important thing is it's cheap to store a lot of it for a long time and straightforward to use a lot of it all at once during those rare dark, windless spells. For natgas we even already have the infrastructure. What's really startling is the cost of producing a kwh from stored syngas/hydrogen generated from solar and wind is similar to the cost of getting a kwh from a nuclear power plant. So, worst case storage + solar + wind ~= average case nuclear power.
- vlovich123 2y ago> Not 24/7. They have to be turned off for maintenance and when that happens e.g. France burns an awful lot of gas. Pretty sure >90% of France’s energy consumption is completely green. Renewable grids wish they could boast these kinds of numbers.