On to the Battery. It is only 83% efficient But it takes NOW out of the equation. We will come back to this extra 205 watts you have to push. That is the 1205 minus 1000.

The 205 watts is the 83% efficiency cropping up.

I need to justify the economic model I am using. Physically I can't push the extra 205 kWh to allow me to pull the full 1 MWh out. A 1 MWh box will only hold 1 MWh.

So the critic says I have to purchase 17 percent more battery and that makes it too expensive. Along the same line, I am not sizing the battery for the longest day of the year. It would be cost prohibitive. And I am not sizing the battery for the shortest day of the year. It would not be realistic.

I can push those extra 205 MWh at 2 in the morning. The battery will have plenty of room then. This way the calculations show I am paying for pushing the MWh. I would have a cheaper economic model by never pushing them and making up the difference when pulling the MWh but it would not reflect the actual 83% efficiency.

The mindset of "You have to push the MWs now" is wrong. The "Have to now" words are not in the vocabulary of a battery user. If the critic says, "But you are using that same battery twice in the same cycle." I can respond. "You are right! Cool huh?