ERCIP Lake City Army Ammunition Plant Microgrid and Backup Power

DESIGN-BUILD: Design-Bid-Build (D-B-B) construction of a microgrid system powered by two 7.5 MW combined heat and power (CHP) combustion turbines with dual-fuel capable natural gas and propane fuel systems that make a 15 MW CHP power/heat production plant. The CHP will include heat recovery steam generators (HRSGs) and supplemental exhaust duct firing along with a black start diesel generator. The project will include all electrical distribution equipment and underground duct bank needed to connect to the existing electrical infrastructure. Microgrid controls will be installed to manage various modes of operation to include parallel mode with existing utility, island mode, and black start mode. The microgrid control system will be state of the art and will be integrated with two existing substations at four points of common coupling for seamless operation and load shed capability with the ability to island during a utility grid outage and leverage load shedding to balance microgrid supply and demand during islanded operation, and resynchronization with the grid upon grid restoration. The project will include both electricity microgrid features and simultaneous heat production and steam distribution features. The project will also include installation of two 500-gallon waste water/oil underground storage tanks with double wall interstitial leak monitoring and overfill alarms. The project will involve installing all piping and equipment needed to connect the CHP to the installation’s existing natural gas, steam, condensate, and water infrastructure and operate in tandem with the installation’s existing central heating plant. The microgrid will have industrial grade controls with a new control room located in the central heating plant. Environmental controls will be through the use of low NOx turbines and duct burners. The project also includes site improvements, demolition, full air permitting, communications, and full commissioning.