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Incentives/Policies for Renewables & Efficiency

Printable Version
Renewable Portfolio Standards - Energy Efficiency Component   

Last DSIRE Review: 07/19/2013
Program Overview:
State: Connecticut
Incentive Type: Energy Efficiency Resource Standard
Eligible Efficiency Technologies: CHP/Cogeneration, Unspecified Technologies
Applicable Sectors: Municipal Utility, Investor-Owned Utility, Retail Supplier
Electric Sales Reduction4% of retail load must be met with Class III Resources by 2010
Web Site:
Authority 1:
Date Enacted:
S.B. 1138
Authority 2:
Date Enacted:
Date Effective:
Conn. Gen. Stat. ยง 16-245a et seq.
1998 (subsequently amended)
Authority 3:
Date Enacted:
Date Effective:
S.B.1243 (Public Act 11-80)

Established in 1998 and subsequently revised several times, Connecticut's renewables portfolio standard (RPS) requires each electric supplier and each electric distribution company wholesale supplier to obtain at least 23% of its retail load by using renewable energy by January 1, 2020. Specific to energy efficiency, the RPS also requires each electric supplier and each electric distribution company wholesale supplier to obtain at least 4% of its retail load by using combined heat and power (CHP) systems and energy efficiency by 2010.

Separate portfolio standards are required for energy resources classified as "Class I," "Class II," or "Class III." Class III resources include: (1) customer-sited CHP systems, with a minimum operating efficiency of 50%, installed at commercial or industrial facilities in Connecticut on or after January 1, 2006; (2) electricity savings from conservation and load management programs that started on or after January 1, 2006, provided that on or after January 1, 2014, no such programs supported by ratepayers shall be eligible; and (3) systems that recover waste heat or pressure from commercial and industrial processes installed on or after April 1, 2007. The revenue from these credits must be divided between the customer and the state Conservation and Load Management Fund, depending on when the Class III systems are installed, whether the owner is residential or nonresidential, and whether the resources received state support.

Electric providers must meet the standard with at least 4% Class III sources by 2010, and thereafter, according to the following schedule:

  • On and after 1/1/2007: 1% Class III
  • On and after 1/1/2008: 2% Class III
  • On and after 1/1/2009: 3% Class III
  • On and after 1/1/2010: 4% Class III

More information about the entire RPS can be found on the DSIRE Connecticut RPS page.

  Cathie Bussolotta
Public Utilities Regulatory Authority
10 Franklin Square
New Britain, CT 06051
Phone: (860) 827-2674
Web Site:
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Disclaimer: The information presented on the DSIRE web site provides an unofficial overview of financial incentives and other policies. It does not constitute professional tax advice or other professional financial guidance, and it should not be used as the only source of information when making purchasing decisions, investment decisions or tax decisions, or when executing other binding agreements. Please refer to the individual contact provided below each summary to verify that a specific financial incentive or other policy applies to your project.

While the DSIRE staff strives to provide the best information possible, the DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. make no representations or warranties, either express or implied, concerning the accuracy, completeness, reliability or suitability of the information. The DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. disclaim all liability of any kind arising out of your use or misuse of the information contained or referenced on DSIRE Web pages.

Copyright 2013 - 2014 North Carolina State University, under NREL Subcontract No. XEU-0-99515-01. Permission granted only for personal or educational use, or for use by or on behalf of the U.S. government. North Carolina State University prohibits the unauthorized display, reproduction, sale, and/or distribution of all or portions of the content of the Database of State Incentives for Renewables and Efficiency (DSIRE) without prior, written consent.