State and Local Climate and Energy Program
City of Keene Renewable Energy Agriculture Project
Keene, New Hampshire
Federal Funding: $500,000
Project Timeline: January 2011 – June 2014
The City of Keene is transforming an existing landfill gas-to-energy facility into a Combined Heat and Power (CHP) Plant, which will provide energy to a sustainable agriculture and algae culture system. Phase I, which includes much of the conceptual backing for the project, has been completed. Outputs from Phase I include a rendering of the site layout and plan, draft marketing and business plans, and a list of potential stakeholders and partners. To validate their Phase I findings, the City sought out independent review of their technical analysis and operational and economic models. Future activities include establishing relationships with key funders, partners, and other stakeholders before construction can begin.
A Public-Private Partnership to Demonstrate a Waste-Free Use of Landfill Gas
The City of Keene's civic leadership supports community efforts to save energy, reduce emissions, and create a more sustainable place to live, work, and recreate. The City will transform the Keene Materials Recovery Facility and closed Landfill into a demonstration-level green energy project for greenhouse gas (GHG) management through a CHP plant powered by methane from the capped landfill. The proposed power plant will provide up to 250 kW of renewable power to the adjacent Materials Recovery Facility and produce heat for a greenhouse aquaponics project and algae for animal feed and possibly biofuel production. Completing the proposed project will move the City and the community towards its GHG reduction goal, as well as serve as a solid example of Keene's commitment to moving beyond "the low-hanging" fruit.
The project is proceeding in three phases. In the first phase, the City developed a site layout and plan, marketing and business plans, and a list of potential partners/ stakeholders. The second phase will involve upgrade of the existing system to a CHP plant to enable full recovery of available landfill gas, as well as installation of a landfill gas boiler and associated heat recovery systems for the plant's integration to agricultural and algae production systems. Finally, the City will build a 20,000 square foot greenhouse with aquaculture system and plant production for year-round, high quality fish protein and fresh vegetables, which will be sold locally. The CHP power generator will provide low-cost heat to the greenhouse, and the recirculating aquaculture systems will provide high value organic nutrients for the plants and the algae culture system. Working within research and development partnerships with Keene State College and Dartmouth College, the algae culture system will be designed to capture remaining wastes and carbon and convert them to algae for use in the research of biofuel production and livestock feed for fish and poultry.
This zero fossil fuel facility will remove approximately 6,000 metric tons of carbon per year from landfill gas emissions and convert this source of GHGs into high quality local food, biofuel, and aquaculture feed while producing virtually zero waste. In addition, the City will share the results and progress of the project by developing a project blog posted on the city website. Tours of the facility will be given and elected leaders and project staff will deliver presentations to various audiences about the project. Keene will also seek other ways to highlight this work.
|Area||37.6 square miles|
|Community Type||Small Urban|
|Median Household Income||$51,375|
|Reported Results (as of September 2013)||Projected Cumulative Results|
|Annual GHG Reductions||n/a||16,500 mt CO2e|