Okay here's a WAG, not to be confused with what it may really be.
A system to be able to retrofit all the doors and windows in your home with Solar Panels that is easy to install and eliminates the need for a contractor. Heck maybe even to include rooftop installation as well.
Don’t gamble; take all your savings and buy some good stock and hold it till it goes up, then sell it. If it don’t go up, don’t buy it.