Note the range requirement on the graph, what happened was that suddenly a bunch of companies figured out how to get big batteries into their cars.
Great opportunities for building more homes!
This is based on December data, we don't have perfectly equivalent January data yet, but prices appear to have gone back down a bit.
One person responded with a link to a paper about such a hypothetical service, claiming that such a thing will be available soon. I could certainly imagine writing a database query to create an automatic index, I just can't imagine what I'd want to do with it...
Threads
โข Interesting thread about water use in the US Southwest. TL;DR: the largest single component is easily livestock feed, especially alfalfa, which is often not even used locally, it's shipped overseas.