I know we've talked about this before. But +100MW-hrs here and there is nothing. Yeah, 300MW in Australia is impressive for Lithium Ion. But...
https://www.nytimes.com/interactive/2018/07/24/business/ener...
This singular $3 Billion project will give 2GW of power. If the lake holds 8-hours of water, that'd be 16-GW-hrs of energy in a single project.
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If energy storage is to be figured out in the USA, we need to be calculating GW-hr scale projects, not MW-hr scale projects like Mr. Musk.
Lithium Ion's main benefit was to Tesla, as Tesla would have a 2nd place to sell their Lithium Ion batteries. Its great for Tesla, but its way too small of a scale for me to consider it as a major solution to the USA's energy problem.
Utility scale battery storage will lead the day. Raw materials go into your factory, out come battteries good for at least a decade, that can perform energy arbitrage and frequency response for grid services. And every year it keeps getting cheaper to build. Hydro storage construction is always going to be geoconstrained, time consuming to construct, and expensive.
Just my two cents.
Both in number of vehicles sold[1] and in distance driven[2] Tesla vehicles are handily beat by the likes of the Chevy Volt and Nissan Leaf. Those are the sorts of vehicles that are going to change the game and make a dent in climate change, not luxury cars.
1. https://insideevs.com/plug-in-electric-car-sales-ranked-by-o...
2. https://insideevs.com/us-crosses-10-billion-e-miles-driven-f...