North Island Facility

Customers

US Navy - electricity and steam
San Diego Gas & Electric Company - electricity

Location

San Diego, California

Capacity

40 MW electric
390 kpph steam

Project Description

Primary Energy's North Island CHP Facility is a 40 MW combined heat and power (CHP) plant which serves the U.S. Navy's North Island Naval Air Station on Coronado Island. A small portion of the electric output and all of the steam produced by the facility are sold to the Navy while the remaining electricity is sold to San Diego Gas & Electric Company (SDG&E). The CHP facility includes a combustion turbine, heat recovery steam generator (HRSG), a steam turbine generator, and two auxiliary boilers. The Navy's Naval Air Station occupies approximately 2,000 acres of the north section of Coronado Peninsula and includes an airfield, deep-draft port facilities, and extensive aerospace manufacturing facilities.

Commercial Operation

1989

Benefits

The North Island CHP facility provides approximately 100% of the Navy's annual steam requirements for use on land as well as for ships berthed at the base. In addition, the electrical output of the steam turbine is dedicated for the Navy's use and meets a portion of their annual electrical requirements. The production of both useful electricity and thermal energy form the CHP facility has the effect of reducing regional emissions by an average of over 300 tons of NOx, 650 tons of SO2, and 220,000 tons of CO2 per year. In addition, the Navy and SDG&E benefit economically from both lower energy costs and increased reliability.