ʻŪkiu Energy

A Clean Energy Project

The ʻŪkiu Energy Project is proposed by Ameresco, Inc. to construct, own and operate this facility for a term of 30 years. This firm energy project will provide approximately 40 MW of always available and flexible renewable generation utilizing six dual-fuel engines.

The project will be designed to interconnect to the Maui grid and provide significant grid benefits, notably supporting grid stability to allow for more rooftop solar and other intermittent resources while also providing black start capacity to the island grid if needed to recover from a major grid outage.

The Project’s renewable energy will supply power to approximately 9,300 homes and businesses while utilizing renewable fuel, helping Hawaiʻi to reach its renewable energy goals while benefiting the environment.

Project Details

  • Project constructed on industrial-zoned site adjacent to the new Hawaiian Electric Waena Substation
  • New engine building housing six engines, control room, and electrical gear to protect equipment and minimize noise
  • On-site biofuel storage for 14 days of plant usage
  • Biofuel offloading facility
  • Interconnection to Hawaiian Electric’s Maui infrastructure


ʻŪkiu Energy will utilize an approximately 10-acre portion of TMK (2) 3-8-003:024, located at the corner of Pulehu Road and Upper Division Road.

ʻŪkiu Energy Project Site Map >

The Project is located on an approximately 10-acre portion of TMK (2) 3-8-003:024

ʻŪkiu Energy Site Layout >

  • Six dual-fuel engines
  • On-site fuel storage
  • High and medium voltage switchgear and transformers

ʻŪkiu Energy Project Proposed Project Interconnection Map >

The Project will connect to the adjacent Maui Electric Waena switchyard to the east of the project site along Pulehu Road.