National Grid (Gas) - Commercial Solar Thermal Rebate Program

March 14, 2011


This incentive is no longer offered. National Grid provides funding support to commercial and industrial gas customers who install solar thermal technologies. Recommended solar thermal applications include solar hot water heating, and in some cases solar space heating or high temperature process applications. Eligibility requirements are in place to ensure quality installation of solar thermal systems. National Grid requires interested participants schedule an energy audit to identify appropriate solar thermal technologies as well as estimated natural gas savings. They must also contract a solar thermal installer for an estimate; and as part of the pre-approval application, the installer will submit a "RetScreen" or "T-Sol" analysis to National Grid. National Grid will then issue a rebate offer letter based on the analysis. Commercial and industrial customers receive a one-time rebate based on estimated first-year savings, up to 50% of the project costs or $100,000 per project ($250,000 for new construction). The system must save gas to qualify.

Program Overview

Implementing Sector: Utility
Category: Financial Incentive
State: Massachusetts
Incentive Type: Rebate Program
Web Site:
Start Date:
Eligible Renewable/Other Technologies:
  • Solar Water Heat
  • Solar Space Heat
  • Solar Thermal Process Heat
Incentive Amount: Commercial: 50%
Maximum Incentive: Commercial: $100,000 per project
New Construction: $250,000 per project
Equipment Requirements: Commercial system: must be pre-approved


Name: National Grid (Gas) Commercial Information
Phone: (800) 292-2032

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.