NELHA Gateway Distributed Energy Resource Center

Location: Hawaii, Hawaii
Client Name: Ferraro Choi Associates
Date Completed: 2002
Construction Cost: $50,000,000
Disciplines Applied: Civil Engineering, Surveying & MappingPlanning & Permitting (for Individual NPDES permit)

Project Description:

The Gateway Distributed Energy Resource (DER) project showcases the alternative energy possibilities available at the Natural Energy Laboratory of Hawaii (NELHA) for the State of Hawaii. The DER Center consists of a visitor center, laboratory building, and parking lot.  RMTC’S innovative design of this project incorporates numerous energy saving features.

RMTC was tasked with providing the civil engineering design and permits for this project. The design incorporates a parking lot paved with soil cement instead of asphalt concrete for cost benefits. Also provided are onsite water and sewer/septic systems, and piping for seawater, which is used to cool the buildings. Unique designs incorporated into the site work include hard surfaces consisting of compacted aggregate stabilized by a liquid polymer and a 20,000 square foot, 5-foot high raised platform for the visitor center.
RMTC also prepared an NPDES permit for construction stormwater.


U.S. Green Building Council LEED-NC, v.2/v.2.1 in 2005; Achievement Level: Platinum (52 points)
The following points were obtained for the Civil Engineering design by the R.M. Towill Corporation:
Sustainable Sites, 9 of 14 possible points
SS Credit 1, Site Selection
SS Credit 6.1, Stormwater Management, Rate and Quantity
SS Credit 6.2, Stormwater Management, Treatment