The Commonwealth Solar Hot Water Program (CSHW) offers rebates for solar hot water (solar thermal) feasibility studies and construction projects at large multi-family, community and commercial-scale buildings. In addition to the offerings on this page, the Commercial Solar Hot Water Financing Program assists commercial and non-profit building owners in reducing their water heating bills by installing solar hot water at little or no upfront cost.
For information about installing a solar hot water system, please visit our About Solar Hot Water Webpage.
For a list of all installers who have successfully submitted rebate applications, check out the CSHW Residential Awarded Projects Database and the CSHW Commercial Awarded Projects Database (these excel files contain information on all projects that have been awarded through the CSHW programs).
Feasibility Study applications may request up to $5,000 for a consultant to help a commercial-scale building owner assess the potential benefits of installing a solar hot water system. Projects offsetting natural gas or serving buildings that do not have a year-round load are not eligible for feasibility study funding.
Commonwealth Solar Hot Water Commercial Construction Projects
Commonwealth Solar Hot Water Commercial Resources