Hawaiian Electric Stage 1 and 2 Renewable Energy Projects

Opportunities to Provide Input and Learn More About the Projects

HSEO seeks to post public input opportunities for each project as they are announced.

Project Location
Developer
Date / Time Event / Opportunity to Comment
Learn About the Project
Mountain View Solar Waianae AES Open Email: [email protected] https://www.aes.com/aes-mountain-view-solar-storage-project

 

In 2015, Hawaii enacted a law that requires Hawaii’s electric utility companies to sell only (100%) renewable energy to their customers by 2045 (Act 97) — the first such mandate in the United States complicated by fact that Hawaii cannot import electricity from other states. All of Hawaii’s renewable energy must be generated in state. The island of Kauai is powered by a utility cooperative owned by Kauai energy users, the Kauai Island Utility Cooperative (KIUC), which achieved 56% renewable energy generation in 2019. The islands of Oahu, Molokai, Lanai, Maui, and Hawaii are powered by a shareholder-owned public utility, Hawaiian Electric, which achieved a collective 34.5% renewable energy generation in 2020: 30.5% on Oahu, 50.8 in Maui County, and 43.4% on Hawaii island. The island of Oahu consumed about 72% of Hawaii’s total electricity demand in 2020.

Hawaii’s fossil fuel power plants have provided reliable electricity to Hawaii residents for decades, but they are old, inefficient, and rely on fossil fuels extracted and imported from other countries or states at prices that fluctuate constantly and are expected to increase in the future. Liquid fossil fuels are transported across the Pacific Ocean and offloaded in waters off Oahu before being refined, repackaged, and barged to other islands. This results in a tenuous energy situation that depends on factors outside Hawaii’s control, vessels of liquid fossil fuels moving throughout the Hawaiian islands regularly posing a huge marine environment risk, electric bills at more than twice any other state in the United States, and greenhouse gas emissions. Many solutions are needed to displace this significant amount of energy including use reductions (energy efficiency), widespread rooftop photovoltaic (PV) adoption, other customer-sited solutions, and utility-scale renewable energy projects. 

Hawaiian Electric is seeking solutions to displace the significant and dated fossil fuel power plants currently serving Hawaii including: (1) by September 1, 2022, the 180-megawatt (MW) AES coal plant at Campbell Industrial Park on Oahu which is the state’s only coal-powered power plant and provides approximately 16% of Oahu’s electrical energy; and, (2) by the end of 2024, the 38 MW oil-fired Kahului power plant in Kahului owned and operated by Hawaiian Electric which provides approximately 15% of Maui island’s firm power generation capacity. 

As a publicly owned utility, Hawaiian Electric is required by the Hawaii Public Utilities Commission (PUC) to competitively bid for new renewable energy generation it intends to buy and sell to its customers. In February 2018, Hawaiian Electric issued Stage 1 of its competitive solicitation for new renewable energy generation projects on Oahu, Maui, and Hawaii island. Stage 1 produced 8 utility-scale solar photovoltaic (PV) plus storage projects. In August 2019, Hawaiian Electric issued Stage 2 of its competitive solicitation for new renewable energy generation and standalone energy storage projects on Oahu, Maui, and Hawaii island. Stage 2 produced to date 9 utility-scale solar PV plus storage projects and 3 utility-scale standalone storage projects.

Click HERE or the Map to View a Map of the Stage 1 and 2 Projects

This website provides information and opportunities for public input on the 20 utility-scale renewable energy projects selected by Hawaiian Electric on Oahu (10 projects), Maui (6 projects), and Hawaii island (4 projects).  Of the 20 total projects in both Stages, 18 would be built, owned, and operated by private developers. Hawaiian Electric would build, own, and operate the Waena and Keahole battery storage projects.

Each new utility-scale renewable energy project must be submitted to the PUC for review and decision Some of these projects have been approved by the PUC, others are under review. An individual PUC docket has been created for each utility-scale renewable energy project listed on this website. The PUC docket process is in open forum that allows for public comment at any time in the proceeding. In addition, each project must obtain the requisite federal, state, and county permits and approvals, many of which offer opportunity for public comment. HSEO’s Renewable Energy Projects Directory and Hawaiian Electric’s Renewable Project Status Board provide additional information on these projects and other utility-scale projects now under development or construction, approved by the PUC, or awaiting PUC approval throughout Hawaii.     

Go to Stage 2 Solar PV Plus Storage Projects

Go to Stage 2 Standalone Storage Projects

Go to Relevant Links

Stage 1 Solar PV Plus Storage Projects (by Island and Estimated Completion Date)

Project Name Island Location Developer Capacity (Megawatts, Megawatt-hours)
Utility’s Renewable Energy (%)
Project Status
Estimated Completion Date
Tax Map Key(s)
PUC Docket Information Links
AES West Oahu Solar
Oahu Kapolei AES Distributed Energy, Inc. 12.5 MWac + 50 MWh Storage  0.4 PUC Approved; Permitting
September 7, 2022
(1)9-2-002:007 2019-0050 AES West Oahu Solar
Mililani I Solar
Oahu
Mililani
Clearway Energy Group 39 MWac + 156 MWh Storage  1.2 PUC Approved; Permitting November 1, 2022
(1)9-4-005:090,
(1)9-4-005:092,
(1)9-4-005:096,
(1)9-4-005:091
2018-0434
Waiawa Solar Power Oahu
Pearl City
Clearway Energy Group 36 MWac + 144 MWh Storage  1.2
PUC Approved; Permitting December 1, 2022
(1)9-6-004:024 2018-0435
Hoohana Solar 1
Oahu Kunia 174 Power Global, Hanwha Energy USA 52 MWac + 208 MWh Storage
 1.4 PUC Approved; Permitting August 31, 2023
(1)9-4-002:052 2018-0431
Paeahu Solar
Maui
Wailea
Innergex Renewable Energy 15 MWac + 60 MWh Storage  0.5 PUC Approved; Permitting April 28, 2023
(2)2-1-008:001 2018-0433
Paeahu Solar
AES Kuihelani Solar Maui Waikapu AES Distributed Energy, Inc. 60 MWac + 240 MWh Storage
 1.9 PUC Approved; Permitting October 27, 2023
(2)3-8-005:002,
(2)3-8-006:003
2018-0436 AES Kuihelani Solar
AES Waikoloa Solar
Hawaii Waikoloa AES Distributed Energy, Inc. 30 MWac + 120 MWh Storage
 0.8 PUC Approved; Permitting November 3, 2022
(3)6-8-002:050 2018-0430 AES Waikoloa Solar
Hale Kuawehi Solar
Hawaii Waimea Innergex Renewable Energy, Paniolo Power 30 MWac + 120 MWh Storage
 0.8 PUC Approved; Permitting December 2, 2022
(3)6-7-001:025 2018-0432 Hale Kuawehi Solar

Stage 2 Solar PV Plus Storage Projects (by Island and Estimated Completion Date)

Project Name Island Location Developer Capacity (Megawatts, Megawatt-hours)
Utility’s Renewable Energy (%)
Project Status
Estimated Completion Date
Tax Map Key(s)
PUC Docket Information Links
Kupehau Solar Oahu Kunia 174 Power Global, Hanwha Energy USA 60 MWac + 240 MWh (4 hr) Storage 1.3
PUC Approved; Permitting May 31, 2022
(1)9-2-004:008 2020-0138 Kupehau Solar
Mountain View Solar Oahu Waianae AES Distributed Energy, Inc. 7 MWac + 35 MWh Storage  0.3 PUC Approved; Permitting
May 17, 2023 (1)8-5-003:031, (1)8-5-003:032, (1)8-5-019:034 2020-0139 Mountain View Solar
Waiawa Phase 2 Solar Oahu Pearl City, Waipio Village AES Distributed Energy Inc. 30 MWac + 240 MWh Storage 1.2 PUC Approved; Permitting October 30, 2023 (1)9-6-004:024, (1)9-6-004:025, (1)9-6-004:026, (1)9-6-006:036 2020-0137 Waiawa Phase 2 Solar
Barbers Point Solar Oahu Kapolei Innergex 15 MWac + 60 MWh Storage 0.4 Under PUC Review December 29, 2023 (1)9-1-013:038, (1)9-1-013:040 2020-0143 Barbers Point Solar
Mahi Solar Oahu Kunia Longroad Development
120 MWac + 480 MWh Storage 3.1
PUC Approved; Permitting December 31, 2023
(1)9-2-001:001, (1)9-2-004:012, (1)9-2-004:006, (1)9-2-004:003, (1)9-2-004:010 2020-0140 Mahi Solar
Pulehu Solar
Maui
Pulehu
Longroad Development
40 MW + 160 MWh Storage
1.2
Under PUC Review April 30, 2023 (2)2-5-001:003,
(2)2-5-001:004,
(2)2-2-002:016
2020-0141
Pulehu Solar
Kamaole Solar Maui Kihei Kamaole Solar LLC (Potentia Renewables) 40 MWac + 160 MWh Storage  1.4 Under PUC Review April 30, 2023 (2)2-2-002:001 (2)2-2-002:050 2021-0026 Kamaole Solar
Kahana Solar Maui Napili-Honokowai Innergex 20 MWac + 80 MWh Storage  0.7 Under PUC Review December 29, 2023 (2)4-3-001:017 2020-0142 Kahana Solar
Puako Solar PV + Battery Storage Hawaii Puako, South Point ENGIE Development LLC 60 MWac + 240 MWh Storage  1.9 Under PUC Review September 30, 2023 (3)6-8-001:024 2020-0189 Puako Solar PV + Battery Storage
Project information will be updated as information becomes publicly available.

Stage 2 Standalone Storage Projects

Project Name Island Location Developer Energy Storage Capacity (Megawatts, Megawatt-hours)
Utility’s Renewable Energy (%)
Project Status
Estimated Completion Date
Tax Map Key
PUC Docket Information Links
Kapolei Energy Storage Oahu Kapolei Plus Power 185 MW / 565 MWh 0.1
Under PUC Review June 1, 2022
(1)9-1-014:042 2020-0136 Kapolei Energy Storage
Keahole Battery Energy Storage  Hawaii Kailua-Kona Hawaiian Electric Company, Inc. 12 MW / 12 MWh (1 hr)  N/A
Under PUC Review December 30, 2022
(3)7-3-049:036 2020-0127 Keahole Project Summary

HE Self-Build Projects

Waena Battery Energy Storage  Maui Kahului Hawaiian Electric Company, Inc. 40 MW / 160 MWh (4 hr)  0.2
Under PUC Review April 28, 2023
(2)3-8-003:023  2020-0132 Waena Project Summary

HE Self-Build Projects

Project information will be updated as information becomes publicly available.

Relevant Links:

Information published by HSEO for all projects comes from public sources of information only.