our city’s solar electric subsidy program
It sounds like there's two different things there. There's a solar installation (hardware, etc.), and there's likely some kind of net metering program (where they pay you or give you credit for electricity you generate). That paragraph sounds like the first, but the phrase sounds like the second.
You shouldn't have to go through them for the solar installation, if your conditions accommodate it. Granted, the conditions don't apply to everyone. You'll want to have a suitable roof that ideally faces south-ish, own your home, and plan to stay there for at least 10 years. In the US, you also kind of need to get it done within this calendar year, which is a rough ask, before the federal 30% tax credit goes away. But maybe you can find an installer that isn't trying to scam you quite as much.
(It's early and cloudy today.)
