JBLM Gray Army Airfield Microgrid

Site development and high voltage construction for the Gray Army Airfield microgrid at Joint Base Lewis-McChord, a battery energy storage and natural gas generation plant built for the US Army Corps of Engineers through City Light & Power JBLM. Site work covers clearing and grubbing, cut and fill to grade, the stormwater pond and swales, and the gravel equipment pad yard and access roads, followed by reinforced concrete pads for all plant equipment. The electrical scope carries the site grounding grid and lightning protection, trenched and bored duct runs between the switch house and switch locations, medium voltage conductor installation and termination, low voltage, control, SCADA, fiber and Cat6, site lighting, and the rigging and setting of the plant equipment, all delivered inside an active Army installation to USACE EM 385-1-1 standards with Davis-Bacon wages and badged crews.

Services Employed:

• Site grounding grid and lightning protection system
• Medium voltage conductor installation and termination, pad mount switch setting
• Duct runs from the switch house to switch locations 2 through 7, with bored hard surface crossings
• Rigging and setting of 2 BESS units, 2 gas generators, 2 inverters, 3 transformers, a load bank and a switch house
• Low voltage, control and SCADA wiring, fiber optic splicing and testing, Cat6 cabling
• Reinforced equipment pads, including two neutral ground resistor pads
• Clearing and grubbing, cut and fill, stormwater pond, gravel pad yard and access roads
• Temporary power, erosion control, and commissioning and NETA testing support