KUPEHAU SOLAR

Project Description

174 Power Global proposes to install, own, and operate a 60 megawatt solar photovoltaic energy facility with a four-hour battery (240MWh battery energy storage system, “BESS”) in the ʻEwa – Kunia area of Oʻahu in response to Hawaiian Electric Company’s Variable Renewable Dispatchable Generation Island of Oʻahu 2019 – Request for Proposals.

The photovoltaic solar and energy storage system would be interconnected to the grid on the Kahe to Waiau 138 kV transmission line. 

The proposed project consists of : 

Solar photovoltaic modules

Solar PV pad-mounted inverters

Pad-mounted battery modules and inverters

Medium voltage transformers

A site controller system

Medium voltage switchgear

Main power transformer

Relaying and telecommunications equipment necessary to safely integrate the project into the existing grid

The project is sited on approximately 200 acres of low-productivity agricultural lands (LSB D and LSB E soils classification), immediately adjacent to the Kahe to Waiau 138 kV transmission line.

The project has been selected to the Stage 2 Final Award Group, and if a Power Purchase Agreement is signed and approved, the project will be authorized under a 20-year Power Purchase Agreement.

Project Site Map

Kunia, Oʻahu, Hawaiʻi

ESTIMATED PROJECT TIMELINE

AUGUST 2019
Hawaiian Electric Company Issues Request for Proposals
AUGUST 2019
ONGOING
Community Outreach
ONGOING
MAY 2020
Hawaiian Electric Company Selects Project
MAY 2020
MAY 20 - Q3'2020
Power Purchase Agreement Negotiations with Hawaiian Electric Company
MAY 20 - Q3'2020
Q3' 2020
Power Purchase Agreement filed with Hawaiʻi Public Utilities Commission
Q3' 2020
Q4' 2020
Anticipated Hawaiʻi Public Utilities Commission Approval
Q4' 2020
Q1'2021
Environmental and Cultural Studies Complete
Q1'2021
Q3'2021
Permits Complete
Q3'2021
Q3'2021 - Mid-2022
Construction
Q3'2021 - Mid-2022
Mid-2022
Commercial Operations
Mid-2022
20 Years
Power Purchase Agreement Term
20 Years