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Connecticut Renewable Portfolio Standard

Date Last Updated11/19/2012
Policy TypePortfolio Standard
State/FederalCT
Policy Administrator/Contact OfficeConnecticut Public Utilities Authority
Policy Initiation Date7/1/1998
Policy SummaryConnecticut's Renewable Portfolio Standard (RPS) has separate standards for energy resources classified as Class I, Class II, or Class III resources, and includes CHP as an eligible Class III resource. The RPS requires each electric supplier and electric distribution wholesale supplier to obtain at least 23% of its retail load by using renewable energy by January 1, 2020 (i.e., from Class I & II resources). Class III resources include CHP, demand response, electricity savings from conservation and load management (C&LM) programs, and waste recovery systems. The RPS requires 4% of retail load to come from using CHP and energy efficiency by 2010. The Class III RPS requirement began at 1% in 2007, increasing by 1% per year until leveling out at 4% in 2010 and forward. The total RPS target for all three Classes is 27% by 2020.

Customers that install Class III resources on or after January 1, 2008, are entitled to Class III credits equal to at least one cent per kWh. The revenue from these credits must be divided between the customer and the State C&LM fund in various ways depending on when the Class III resources are installed, whether the owner is residential or non-residential, and whether the resources received state support.
CHP Eligibility RequirementsBoth fossil-fueled and renewably-fueled CHP systems are eligible under the RPS. Eligible CHP systems must have been developed on or after January 1, 2006, to qualify under the RPS. Eligible systems that recover waste heat or pressure from commercial and industrial processes must be installed on or after April 1, 2007. Existing units that have been modified on or after January 1, 2006, may earn certificates only for the incremental output gains.
Eligible Project Size (MW)Does Not Specify
Minimum Efficiency Required/
Other Performance Requirements
A CHP system must meet an overall efficiency level of at least 50%. The sum of all useful electrical energy output must constitute at least 20% of the system's total usable energy output. The sum of all thermal energy outputs must also constitute at least 20% of the system's usable energy output.
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