Energy & Power · Roseburg, Oregon
Roseburg Wastewater Authority Completes US$1 Million Office Solar-and-Storage System
RUSA’s completed office installation pairs 39.4 kW of solar with 184 kWh of storage; two larger wastewater-site solar projects remain planned.
Roseburg Urban Sanitary Authority and Ameresco marked completion of a US$1 million solar-and-battery installation at the authority’s main office in Roseburg, Oregon, on October 14. The office project is the first part of a wider energy program covering the office, wastewater treatment plant and natural treatment system.
The completed installation combines a 39.4-kWDC photovoltaic array with 184 kWh of battery storage. Ameresco estimates annual solar generation of about 51,580 kWh, designed to offset the office’s annual electricity consumption. That is an annual energy target, not a claim that solar alone supplies the building continuously.
Funding includes an US$870,870 Oregon Department of Energy Community Renewable Energy Program grant and support from Energy Trust of Oregon. The battery is intended to maintain critical administrative and operational functions during interruptions.
Separate planned phases comprise 900 kW of ground-mounted solar at the wastewater plant and 400 kW of floating solar at the natural treatment system. Their construction is anticipated to begin in fall 2026; they are not part of the completed office installation.
Ameresco completion announcement — October 14, 2026 · Water & Wastewater coverage. Official media contact: news@ameresco.com. Source reviewed October 15, 2026.
Key details
- Completed office phase
- $1 million
- Solar and storage
- 39.4 kWDC solar and 184 kWh battery
- Oregon grant
- $870,870 C-REP grant
- Planned later phases
- 900 kW WWTP solar and 400 kW floating solar at the NTS
Why it matters
The completed $1 million office phase pairs solar with battery storage, while the larger treatment-site phases remain separate planned work. The releases do not establish an open procurement.
Status and next steps
Ameresco’s November 2 follow-up still described the wastewater-treatment-plant and natural-treatment-system solar installations as planned; no confirmed construction start date was identified.
Review the official next step →Project contacts and next steps
A direct project contact has not been verified for this article. Consult the linked source organization for the appropriate office.
Primary sources
- Ameresco completion announcement · October 14, 2026
- Ameresco program status follow-up · November 2, 2026