Solar Thermal Incentive Program - Commercial



Due to funding constraints, we are no longer accepting applications for the ARRA funded commercial ST program.  We are working on implementing a CCEF funded commercial ST follow-up program as soon as possible.  Please note that we are still accepting residential ST applications at this time.


No rebate from this program will be paid to any project which is not completed and operating by April 30, 2012.


Using funds received under the American Recovery and Reinvestment Act, the Connecticut Clean Energy Fund has established a solar thermal incentive program to stimulate the development of renewable energy and green jobs in Connecticut.


Because this new incentive program is funded exclusively by the federal government, applications are open to all Connecticut homeowners, businesses and organizations who wish to install solar domestic hot water (DHW) heating systems. Incentives are available for both new construction and for existing buildings, or retrofits. Solar hot water systems for space heating or pool heating are not eligible for incentives. Funding is expected to last for approximately 32 months (through approximately March 2012), during which time the program will be evaluated and consideration will be given to continuing the program under CCEF funding.


Prospective applicants who are interested in the Solar Thermal Incentive Program are encouraged to review program details in the fact sheet linked here and contact one or more eligible solar thermal contractors. A list of these contractors is available here.  The contractors can provide you with a price quote for a solar thermal system and can help answer any questions you may have about such systems.


Click here for the residential version of the Solar Thermal Incentive Program.


Funding available under this program is as follows:


Solar Thermal Rebate Program - As of 7/28/2011

Applications Received

Rebate Funds Reserved

Pending Rebate Applications ("Pipeline")

Rebate Funds Remaining (Unallocated)

% Funds Remaining







Program Start

Program End Months Left in Program


 October 2009

April 2012




NOTE:  The current Solar Thermal Rebate program has received more applications than can be funded.  We will continue to approve projects that are in the “pipeline” until all available funds have been reserved. 


We plan to introduce a new rebate program for solar hot water projects as soon as our new Board of Directors can be convened.  Any project applications which cannot be funded under the existing program will be automatically entered into the new program’s queue.   Rebates for qualifying projects will be approved once the new program is ratified by our Board, which we expect will occur no later than late September.  Initially, incentives will be comparable to those of the current program.  The new program will be open only to customers of United Illuminating and Connecticut Light & Power.


Program Announcements

Effective immediately, the rebates for the Solar Thermal Incentive Program have been increased, as follows:

  • The rebates will be determined by the usable annual thermal output, in MMBtus, of the system
  • The rebate rates will be:
    • Residential projects: $275/MMBtu
    • Commercial (for-profit) projects: $450/MMBtu
    • Commercial (government and not-for-profit):  $550/MMBtu

These rates should make solar thermal projects even more attractive, economically.  The higher rates for commercial projects are intended to compensate for the additional costs of compliance with the federal requirements associated with the American Recovery and Reinvestment Act, which is funding the Solar Thermal Program.  See Solar Thermal Incentive Program fact sheet for more information. 

Links to Important Information


































  • To become an eligible solar thermal contractor (or a “provisional” contractor), please review the information below: