Site work for a mixed-use development in Oakridge, Oregon. Completed plans call for site work for a 29,000-square-foot, one-story above grade power facility; 29,000-square-foot, one-story above grade clubhouse / community center; and 29,000-square-foot, one-story above grade power facility.

The project involves the installation of a 125 kW solar and 120 kWh battery system at the Willamette Activities Center located at 47674 School St, Oakridge, OR 97463. The existing roof area is approximately 29,000 square feet. The selected proposer must demonstrate the ability to design, procure, and install the system. Proposals must be submitted via email in PDF format; paper submissions are not accepted. If there are issues with email, files may be uploaded to Google Drive or Box.com upon request. Documents containing procurement details are available from Oregon Buys and the City of Oakridge website. Proposal requirements include compliance with Oregon's prevailing wage rates for public works, adherence to state and federal equal opportunity employment laws, and compliance with Oregon worker's compensation statutes. Each proposal must state the residency status of the proposer under applicable Oregon statutes. Unless specifically exempt, a $30,000 public works bond must be filed with the Construction Contractors Board prior to project work. All subcontractors must also file such a bond. The owner may reject proposals not complying with all prescribed procedures and requirements, and may waive informalities or reject all proposals for cause. Contractors must be licensed by the Construction Contractors Board for the scope of work. Questions should be directed to the provided project email. Addenda may be issued and will be distributed through the same channels as the proposal documents. Send to info@oregoncleanpower.coop with the project name in the subject line. Questions will be received until October 28,2025 and Addendum, if any, published by October 31, 2025. CONSTRUCTION MUST BEGIN BY: June 2026 RE-ROOF PROJECT COMPLETED: November 30,2025; ELECTRICAL SERVICE UPGRADE COMPLETED: April 2026 The contractor selected will provide a turnkey, installed and fully operational solar PV and battery system which provides the maximum reasonable amount of energy generated, at the lowest possible cost. Solar Design Considerations. The solar array should be as close as possible to 125 kW DC, ideally no more than +/- 5%, while subject to the following considerations: We seek the earliest possible date of installation of the system, understanding that delays cannot always be anticipated. The contractor will be required to provide a complete turn-key installation. This may include but is not limited to: o Building and related trade permits o Locates o Materials o Labor o Any necessary sub-contractors o Project management o Lane Electric net metering / interconnection agreements The solar array should be as close as possible to 125 kW DC, ideally no more than +/- 5%, while subject to the following considerations: We seek the earliest possible date of installation of the system, understanding that delays cannot always be anticipated. Solar PV BESS Capacity The array, including mounting hardware, should fit entirely within the Solar Array Areas. The Solar Array Areas are shown in the attached Sheet A231, and outlined in orange in Figure 2. The building electrical system is currently single-phase, 120/240V. The City of Oakridge will add a new three-phase, 800-amp 208-volt service, including a transformer upgrade, which is expected to be completed by April of 2026. With this service upgrade, a 600-amp "priority load panel" will be installed by the City. Circuit breakers will be provided in this distribution panel for interface with the PV / battery inverter(s). The building was built before Oregon's structural codes were implemented, and different sections have different structural designs, with roof beams running in different directions. This can be seen in Sheet A230 -A231.5 in the Appendix. To simplify the solar installation, the building is being reroofed in Fall 2025, and the roofing contractor is installing vertical metal mounting posts with a minimum height of 10 inches above the roof surface. The posts are spaced at 8' intervals in the N-S and E-W directions, forming a Racking / Mounting The mounting infrastructure of vertical posts on the roof presents a unique challenge to the solar racking, and the final racking system may have to be a custom design by the Solar Contractor. As part of the building's reroofing, the roofing contractor will install the vertical posts described in Solar Design Considerations #4. Battery Storage Design Considerations The proposed design should also include a battery energy storage component. The solar, battery and a 200-kW onsite generator will operate together to power a portion of the building during grid outages. The generator is not part of this RFP--it will be purchased separately later--but the system must be able to accommodate it. The future generator room will be located west of Room 150 in Sheet G211. The solar and batteries will connect to circuit breakers in the three-phase, 208-volt 600-amp priority loads panel described in Solar Design Considerations #2. This panel will be in the electrical room, shown as Room 150 on the attached Sheets G211 and A211.6. The Contractor will determine a suitable location for the batteries which complies with fire safety and other regulations. Current code specifies that battery groups should be spaced 3' apart and not exceed 50 kWh per group. The exception is if the battery cabinets are UL 9540 compliant, in which case the AHJ may approve larger groups with smaller spacing. The Battery Storage Room (Room 151 in Sheet G211) would be a good choice for battery location; ideally all batteries would fit in this room. Sheet A211.6 details this room and recent wall upgrades for fire safety. The City of Oakridge prefers that the battery be located inside the building or in a secured enclosure rather than outside. The system should be capable of islanding during a grid outage to support the priority loads panel. The primary use-case for the battery will be to provide rechargeable backup power and reduce generator runtime during outages. The solar and batteries can be AC or DC coupled, but the batteries should be capable of charging from the solar. The BESS inverter system would ideally be capable of managing input from the PV, battery and future generator, so that all three could work together to support the loads on the priority loads panel1 in an outage. Questions and Addenda Send to info@oregoncleanpower.coop with the project name in the Subject line. Questions will be received until October 28, and Addenda, if any, published by October 31, 2025. To receive notice of Addenda, send your contact name and email address to info@oregoncleanpower.coop. These will be published in future Addenda.