Indeed, the biggest constraint being I imagine the grid connection.

One thing I keep thinking is that with the grid being a network, there are certain key points in the network which would be extremely useful to have battery storage.

Overall the system may have peaks and troughs, however it is a network of edges, some my reach capacity for several hours a day, if battery storage could be built at these points, then the other edges could still be served.

Indeed some points may go up and down several times in a day, and a large enough battery to sate that demand could earn a lot.

I can't see the high level prices reflect the intricacies of a working network. It might be useful on the edges when power is brought in, but further in where use and demand are intertwined something more sophisticated would be needed.

I keep thinking there should be a good case for a simulator game so that people can understand how this really works. (Caveat the above is my chopped liver sliding down a wall version of it, I don't work in the industry and as a physics graduate I'm no doubt buoyed by an inherent arrogance of it being easier than it is.)

Normally if I have an idea, I find that someone has already done something already.

Are there any electricity network simulator games out there already?