[zizee]

> For one common naive case: Storing the energy in Li-Ion batteries in e.g. a Tesla Powerwall: $437/kWh.

How did you come up with that number? Total cost of the battery divided by its capacity?

Since you do not dispose of the battery upon first discharge, the true cost should be amortized across the thousands of cycles it would go through during its lifetime.

Batteries are still far from economical in many situations, but there are many situations where they now make sense. They are also getting cheaper all the time, and as they do, so will the range of applications increase.

[tpmx]

Oh, you don't understand the difference betweeen power and energy...

The context here is storing energy for the days when it's not windy or when it's cloudy.

> Batteries are still far from economical in many situations, but there are many situations where they now make sense.

This a not about your Tesla, or what you feel about Tesla and batteries in general.

[zizee]

>> Also what is the cost of storing that energy?

> Insanely high compared to the cost of producing it.

Ok, how about you share your numbers on the cost of production for 1kwh.

Your use of "insanely high" leads me to believe you are comparing the capital outlay for batteries, vs operating costs of a power station. It's important to compare like for like.