The Strafford County Commissioners meeting on August 28, 2025, focused on exploring energy generation options for county facilities, particularly the Armstel Center and Riverside buildings. The discussion highlighted the potential for on-site natural gas generation to produce electricity and hot water, addressing both energy costs and infrastructure needs.
A key proposal involved a combined heat and power (CHP) system, specifically a reciprocating engine from Tecogen, which could generate electricity while simultaneously providing hot water. This technology, while requiring an investment of nearly one million dollars, is considered cost-effective with a payback period of four to five years. The system would reduce reliance on existing boilers by using the heat generated from the engine.
Another option discussed was a linear generator, a newer technology that produces electricity without recovering waste heat. While this system offers quick response capabilities, it is more expensive and larger in capacity compared to the CHP system.
Commissioners raised questions about the capacity of these systems to support both buildings during power outages. It was clarified that the proposed systems would not fully power the facilities but could support essential functions. Additional infrastructure, such as switchgear, would be necessary to manage power distribution effectively.
The meeting also touched on the county's current electricity expenses, which amount to approximately $750,000 annually. With aging boilers in need of replacement, the potential for self-generated power could alleviate some of these costs and improve energy efficiency.
Overall, the discussions underscored a proactive approach to energy management within Strafford County, with a focus on sustainable solutions that could address both current and future infrastructure challenges. The commissioners expressed interest in further evaluating these energy generation options to enhance operational resilience and reduce long-term costs.