Technically it is exactly the same as a generator, you sell power at a particular price. From the grid perspective it is exactly the same. The fact that you a

Technically it is exactly the same as a generator, you sell power at a particular price. From the grid perspective it is exactly the same. The fact that you also consume energy is coincidental. And it can work well with existing grid systems by turning on as frequency drops or you get signals from a control room. It uses the same kind of approach as a peaker plant (the tanker truck filled with diesel and a generator).