For Residents

In these times of uncertain politics and rapid climate change, solar is a way one family can make a difference for ourselves and for our community
— Sam, Cambridge homeowner

Frequently Asked Questions

  1. How much do solar panels cost? The cost of a solar array and installation depends on the size and complexity of a system you are installing. The cost of solar panels has dropped meaningfully over the past 5-10 years and you can now purchase a solar array between $12,000 and $30,000 and expect a payback of 3-5 years. There are low-interest and income-based solar loans available to help you own your solar and see a positive cash flow over the life of the solar array.

  2. How do I know if my roof is suitable? We evaluate a variety of factors including roof orientation, material, shade, and age. The ideal roof is southern-facing or flat, unshaded, asphalt shingles, and less than ten years old. We use advanced software to model the expected output and placement of panels. We offer a free evaluation of your roof’s eligibility and estimated solar capacity. 

  3. How long do they last? Solar panel expected lifetime and warranties last for 25 years from installation. 

  4. Do solar panels damage the roof? Solar panels do not damage the roof, though it is important that your roof is not older than ten years so that you do not have to re-roof during the duration of the panel lifetime. Solar panel racking on sloped roofs have to be screwed into the building’s rafters, but Resonant Energy selects installation partners with warranties against roof leaks. 

  5. What are the available incentives? As a tax-paying homeowner you are eligible for a tax-credit worth 30% of the solar cost, full value electricity coverage, and a state incentive program called Solar Massachusetts Renewable Target (SMART) that offers a cash-based incentive. 


“I wanted to go solar years ago and I had a number of providers talk to me, but the process always felt confusing. Resonant was able to give me the guidance I needed and the correct financing to make solar work for me.”

“I love solar because it’s clean energy and it saves me money.”