The Clean Energy States Alliance has authored several publications related to renewable heating and cooling technologies. These publications are available at the links below.

Renewable Thermal in State Renewable Portfolio Standards, by Samantha Donalds, CESA Program Associate. Although RPSs have historically focused on electricity generation, some states include renewable thermal power for heat generation. Among those 12 states, there is significant variation in (1) the eligible renewable thermal technologies, (2) how energy output is measured and monitored, (3) how REC values are determined, and (4) how the technologies are classified in the RPS. This report provides an overview of how states across the country are incorporating renewable thermal technologies into their RPS programs. April 2015. 

State Leadership in Clean Energy: Seven Exemplary Programs. In October 2012, the Clean Energy States Alliance announced seven winners of the 2012 State Leadership in Clean Energy (SLICE) Awards, given to recognize state projects and programs that demonstrate exemplary leadership and innovation in clean energy development. Awardees included the Massachusetts Clean Energy Center’s Commonwealth Solar Hot Water Pilot Program, and the New Hampshire Public Utilities Commission’s Residential Wood-Pellet Boiler Rebate Program. This report includes case studies of each of these programs. October 2012.

State Strategies to Foster Solar Hot Water System Deployment, by Mark Sinclair. A CESA State Program Guide. This report describes a number of straightforward strategies that states can implement to support adoption of solar hot water technologies, including provision of financial incentives, training for installers, and education to help customers make informed decisions. December 2007.