Sandy Grove Middle School

Hoke County, NC

Project Summary

School design created a high performance building with low energy use.

Project Highlights

  • Geothermal heat pumps
  • Highly efficient lighting system
  • Solar PV roof system
  • Net Zero/Net Positive Energy status anticipated
  • LEED Platinum Certification Pending


Optima provided mechanical, electrical, plumbing and fire protection engineering design for a new middle school in Lumber Bridge, North Carolina. The goal of the school’s design was to create a high performance building with low energy use. Completed in time for the start of the 2013-2014 school year, the 74,000 SF facility includes an HVAC system that utilizes ground source geothermal heat pumps for heating and cooling, and a highly efficient lighting system. The school also has a 560KW solar PV system mounted on the roof that will produce a total of 655 MWH/year of electricity. As designed and modeled, the building is expected to consume only 481 MWH/year of electricity and 89 MWH/year of natural gas, for a combined figure of 571 MWH/year of total energy. Potentially, the building will therefore produce 14% more energy than it consumes. Even with an anticipated first year of higher energy use levels (typical in new buildings), the facility is still anticipated to qualify for Net Zero/Net Positive Energy status. (All images courtesy of SfL+a Architects)