PLYMOUTH COUNTY CORRECTIONAL FACILITY

PLYMOUTH, MASSACHUSETTS

CHALLENGE

This correctional facility's outdated Combined Heat and Power (CHP) system required modernizing in order to improve efficiency and reduce annual energy cost. The Division of Capital Asset Management and Maintenance (DCAMM) retained B2Q to find the best approach while maintaining strict facility protocols. Because there could be no disruption to security or daily operations, the CHP system was required to be installed outside dual perimeter security fences to permit 24/7 access for service, electrical conduit, and hot water piping.

OPPORTUNITY

B2Q conducted a technical and economic feasibility analysis for the CHP system and subsequently provided bid-assistance, design peer review, construction administration, and commissioning services. Revisions were made to address changes in thermal loads as other energy conservation measures were added or removed from the original scope.

RESULTS

B2Q successfully updated the CHP unit selection, design, and performance specification to ensure the final system was not significantly oversized and inefficient. The following savings were realized:

  • Net annual cost savings of $115,000

  • 950,000 kWh in electricity savings

  • 72,000 therms in natural gas savings

  • Utility incentives of $112,500

  • Simple payback period of 9 years

Market:

Public Sector

Services:

Building Systems
Resiliency and Distributed Generation