On Mon, 20 May 2019 at 10:04, Chris Albertson <[email protected]> wrote:
What you just wrote almost what I wrote. Except that " big enough" is not > a number you can put in a calculator. > > Cost per "KWh over the lifetime" is a very standard measure to define the > value of a battery. I did not make it up. My point is that if you consider only cost/kWh then you could end up spending many billions on a pumped storage scheme... https://en.wikipedia.org/wiki/Dinorwig_Power_Station I am exaggerating, obviously, but my point is that cost/kWh tends to decrease with increased size, so first you need a system suitable for your needs, only then does cost/kWh become the right metric. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
