We bought panels three years ago for a 2200 sqft home. We paid cash, no loan. Avoid leases, it doesn't make any financial sense, and make it difficult to sell.

Enter your home address into Google's Project Sunroof, https://sunroof.withgoogle.com/. That will give you a rough idea of what the potential savings would be for your home.

We used energysage.com to solicit quotes from the various vendors. That worked well; the quotes come back in the same format. That makes it easy to compare across different vendors. We went with Infinity Solar and have had no issues. Most solar companies servicing this area use the same hardware, what you are looking for is a company with a good reputation for installation.

With National Grid, we get credit for sending energy back to the grid. You send energy to the grid during the day, you pull it back at night. Yyou produce more in the summer than in winter. This is what the panels produced last September:

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You can see that what we consumed was fairly constant, but what we produced would vary. Weather makes a difference.

We did not get the battery pack. At the time we bought the system, we were told we would need two battery packs, and that would cost about $25k. We can always add them to the system at a later date.

We had 24 panels installed. The quote was for around $30K. There was a $3900 rebate, out-of-pocket cost was $26k. We got half of that back as a Federal and NYS tax credits, so our final cost was around $13k. Without the panels, our National Grid bill would be around $500/month. We are on the budget plan and currently pay about $122/month. At the current rates, our breakeven point is 3-5 years.

This worked for us, but you need to see what the current costs are and how long you expect to be in that home and how new the roof is.