Not only can you claim 2% back on the tax credit for new solar systems, you can claim it twice! Just make sure you have proof of the second claim.

But if you’ve owned a solar system for a few years now, you should be able to claim the second one after the first one has expired, and that’s because the tax credit is meant to encourage the building of new solar systems. To use the solar tax credit, you must have at least two solar systems installed, and that means you have to have put in at least two years of qualified use on each system.

The tax credit is meant to encourage the building of new solar systems, and a single one is allowed. But because of the way solar systems are taxed (and the fact that the tax credit is based on the system you installed), you must have installed at least two systems and qualified for the tax credit on each one. The first is the tax credit you get for the first system you install, and the second is the one you receive for the second system you install.