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If you'd said less beneficial I could agree. Since batteries can soak surplus power and make it available at other times there is a substantial social utility t
by ggm 2y ago
If you'd said less beneficial I could agree. Since batteries can soak surplus power and make it available at other times there is a substantial social utility to ev as energy soaks irrespective of the source.
The "less efficient because coal" thing is massively overstated sometimes, it's tendentious.
- croes 2y agoNot less efficient, useless. Imagine instead of directly powering the car by combustion engine, you first use a combustion engine to generate electricity to fill the battery. How would the car benefit the environment?
- ggm 2y agoCoal generation favours long run times and is inefficient at being ramped up and down quickly. Using battery systems to soak surplus power time shifts a commodity which otherwise has to be negatively priced. The ideal input for a battery is of course renewable energy but there is a case for batteries as energy soak during times of low consumption, and to help stabilise demand in the network. This isn't an individual car efficiency statement, it's about socialised costs.