About
Your Trusted Solar Energy Company About Ion Solar Pros Founded in Middlebury, Connecticut, by industry-veteran Bill Barrieau in 2017, Ion Solar Pros (iSP) has quickly become a trusted name in the Northeast for full-service solar solutions. Serving Connecticut, Massachusetts, New York, and Rhode Island, our in-house team designs, installs, services, and supports every project with craftsmanship and integrity you can count on.