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Hop Hill Solar

Assigned Site Specialist

Assigned Site Specialist
John Barnes

Assigned CFE
Megan Sallomi

BrightNight, LLC

Benton County

Project Milestones

Looking for the Application for Site Certification? You can find it on the Application page.

Project description

HOHI bn, LLC (Applicant), a subsidiary of BNC DEVCO, LLC, which is a joint venture between BrightNight, LLC and Cordelio Power, proposes to construct and operate the Hop Hill Solar and Storage Project located in unincorporated Benton County. The Project is an up to 500-megawatt2 (MW) solar photovoltaic (PV) generation facility coupled with an up to 500-MW battery energy storage system (BESS), with related interconnection and ancillary support infrastructure.

The Project is approximately 11 miles north of the city of Prosser and 7 miles east of the State Route (SR) 241 and SR 82 interchange and the city of Sunnyside in Benton County, Washington Project construction is anticipated to begin as early as the first quarter of 2024, with a Commercial Operations Date (COD) planned for the last quarter of 2025 (24-month construction schedule).

Siting Area consists of the Solar Array Siting Area (approximately 11,179 acres) and the Transmission Line Corridor Siting Area (approximately 10,841 acres) that runs north to the proposed point of interconnect (POI). The Solar Array Siting Area encompasses approximately 11,179 buildable acres and the overhead 230-kV gen-tie line will be developed within a 150-foot-wide corridor and microsited within the approximately 10,841-acre Transmission Line Corridor Siting Area. The final Project Area subject to development is anticipated to be approximately 6,000 acres and includes the permanent and temporary construction disturbance areas associated with the solar array and associated supporting components. Lands in the Solar Array Siting Project Area have historically been used for agricultural activities (primarily grazing with some crop cultivation). The Project is located entirely on land within the Benton County Growth Management Act Agricultural District (GMAAD).

Counsel for the Environment

Applicant presentation

At the January 18, 2023 EFSEC Monthly Council Meeting the applicant provided a presentation to the Council.

Applicant presentation

Document Title Document Date
Hop Hill Solar Presentation 01/18/2023

A video was provided at the end of the presentation, however the audio could not play during the meeting. Here is a link to the video:

Other Documents


Comments - Agency

Comments - Tribal

Document Title Document Date
Snoqualmie Deferral 01/19/2023
Lower Elwha Kallam Deferral 01/19/2023
Cowlitz Tribe 01/19/2023
Suquamish Deferral 01/24/2023
Yakama Nation 02/13/2023


Document Title Document Date
0001 02/17/2023
0002 02/21/2023
0003 02/21/2023
0004 02/23/2023
0005 02/23/2023
0006 02/23/2023
0007 02/21/2023
0008 02/21/2023

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