Solar Micro-Inverters

I don’t quite understand how the micro-inverter companies will stay in business for much longer. Why? Because they convert solar energy to electrical energy without the benefit of a storage device. Where are the batteries?

They don’t use batteries to store the energy collected from the panels. They don’t store it anywhere. When the sun stops shining, the electrical power also stops. Is there any use that these devices can serve?

Direct Grid and EnPhase are two such companies. The idea seems like a very good one. A small number of solar panels collect energy and feed DC voltage to the micro-inverters. We will call these cells. Each cell can produce 250 VA or in the case of DirectGrid – 460 VA. Many of these can be tied together to provide as much as 8500 VA per group of cells. And there can be more groups tied together for greater power.

But it all goes away when the sun stops shining on the solar panels. What good is that?

Well, there is one use that has not been mentioned in their sales brochures and that is steam power. A good biomass combuster can produce steam 24 hours a day and turn a steam engine connected to a DC generator to produce electrical energy. Now we’re getting somewhere. We can use the micro-inverters with steam power 24 hours a day and produce many kilo-watts of electrical power; all day, every day.

Maybe the real problem is that steam power has not come to the general public as a viable source of power. But don’t despair. It is just around the corner.

Leave a Reply