Connecticut seeks proposals for AD, wind, fuel cell projects

By Erin Voegele | February 12, 2018

The Connecticut Department of Energy and Environmental Protection has issued a request for proposals (RFP) to solicit offers for certain Connecticut Class I renewable energy sources, including anaerobic digestion, offshore wind and fuel cells.

Eligible anaerobic digestion projects must have a nameplate capacity of greater than 1 MW but less than 5 FW and may include paired and colocated energy storage. According to the RFP, Class I qualified clean energy resources smaller than 1 MW may not be aggregated.

Eligible off shore wind projects must have a nameplate capacity of greater than 2 MW. Eligible fuel cell projects without combined-heat-and-power (CHP) must have a nameplate capacity greater than 2 MW but less than 20 MW, while eligible fuel cell projects with CHP must have a nameplate capacity of at least 2 MW and a combined electric and heating efficiency of at least 60 percent.

The RFP specifies that anaerobic digestion facilities must be designed to accept a minimum of 400,000 tons-per-year of food and or farm waste generated in Connecticut, which is to be processed separately from any biosolids or organic materials separated from mixed municipal solid waste (MSW). Food and farm waste may include source-separated food waste, fats, oils and grease (FOG), yard waste and animal manure. The RFP also notes that source-separated food waste may be co-digested with FOG, yard waste or animal manure. A separate process may be provided at the same facility to digest biosolids or organic material separated from mixed MSW. The post-digestion residue of any source-separated food waste must be beneficially used as a compost, soil amendment or other product. In addition, final NOx emissions to the atmosphere from the generated equipment and associated emissions control equipment must not exceed the equivalent of 2 grams per brake-horsepower hour.

The RFP was released to bidders Jan. 31. A bidder conference is scheduled for Feb. 20. Proposals must be submitted by April 2, with the selection of bidders scheduled for June.

A full copy of the RFP can be downloaded from the DEEP website.