I think it's a good idea. However, as with any venture, do your homework.

Research the market size, the barriers to entry, the competition, how you might differentiate yourself, the threat of a disruptive technology making you obsolete, etc.

The solar panels currently in widespread use are:

* Expensive * Limited in Capacity * Fragile-ish

So if I were you, I'd be looking at third-gen solar and finding ways to bring that to people in ways your competition cannot.