3 ms·

Here's an apple, there's an orange. This battery project can be built in small increments and does not require local land in a proper geometry that can be floo

Here's an apple, there's an orange. This battery project can be built in small increments and does not require local land in a proper geometry that can be flooded. Most good pumped storage possibilities in the US are built out already. Pumped storage also wastes more of the stored energy. It took 7 years to build the hydro facility? Wow.

jws 10y ago
The recently rebuilt (2010) Taum Sauk reservoir only manages a 70% efficiency according to Wikipedia. I'm not seeing a number published for the Powerpack but I'd guess a 90% ballpark.