Design Highlights

  • Two 1.5 megawatt diesel engine powered generator sets
  • 1100 KVA UPS system with 2N redundancy and 30 minutes of runtime
  • Below grade conditioned and ventilated battery rooms
  • Service lift for loading and unloading batteries
  • Zoned dry-pipe sprinkler system
  • 15,000 gallon underground, double wall spill containment fiberglass diesel fuel storage tank
  • Redundant fuel transfer pump system
  • Precision cooling system for the UPS and switchgear room
  • Ultra-high volume displacement air ventilation & generator cooling system
  • Extensive acoustical attenuation
  • 3-story compact foot print building addition acoustically isolated from the main building

Team Feedback

"Through extensive coordination with the architect and acoustical engineer, we were able to design a facility that enclosed two 1.5 MW diesel generators, provided 70,000 cfm of displacement ventilation air, and operated so quietly that the residents adjacent to the NFCU campus do not know when the generators are running!"
Steve Tekampe, Sr. Mechanical Engineer
Williams Notaro

J3 Design Collective/HITT Construction

Construction Cost

6,600 Sq. Ft.

Services Provided

  • Mechanical, Electrical, and Plumbing Engineering
  • Fire Protection Engineering
  • Construction Phase Services
  • Pre-purchase Equipment Coordination
  • Acoustical Coordination
  • Project Management
  • Bid Review

Critical Standby Power Generation Facility

Williams Notaro was retained to lead the project team for this fully redundant diesel engine standby power generation facility for a critical data center in Vienna, Va.  As the prime consultant, we managed and coordinated the design effort with the required disciplines.  The project team included architects, civil engineers, structural engineers, acoustical engineers, and cost estimating consultants.  Our team worked closely with each consultant to develop and prepare the construction documents for the new ground-up structure and associated standby systems.  We also collaborated extensively with the client to insure this standby power system met all of their requirements.

Because this new facility interfaced not only with the existing facilities infrastructure, it also was integrated into the existing structural, storm water, domestic water, and architectural systems of the facility.  Because the data center the new standby power facility serves was operational 24/7, coordination with these interfaces was critical to avoid any issue that would result in service outage to the data center.  Thanks to the attention to detail of our staff and the efforts of the project team, the facility was constructed on time, under budget, and commissioned without any impact on the continued operation of the data center.  

Need help with your standby power system?