County workshop hears proposal to pilot solar trackers, batteries and 20-year PPA at Hyder House

Strafford County commissioners heard a workshop presentation on Sept. 30 proposing a phased solar program that would begin with a small pilot at Hyder House and expand to the jail, nursing home and courthouse.

The presenter, identified in materials as a Bright Spot Solar representative, urged the county to start with a roughly 100‑kilowatt system at Hyder House (about six trackers) under a purchase‑power agreement (PPA). The presenter said doing a small PPA project first could create a “safe harbor” for the 30% federal investment tax credit and allow the contractor to put the project on its books immediately: “If we’re less than 1.5 megawatts … we can do 5% safe harbor,” the presenter said.

The contractor told commissioners he could deliver a PPA priced at roughly 12¢ per kilowatt‑hour for an initial five‑year term with modest annual increases and an option for the county to purchase the system later at a discount. He described the technology as dual‑axis trackers that raise panels about 13 feet and, he said, produce materially more energy per acre than fixed ground‑mount systems. He said six trackers would produce about 240,000 kilowatt‑hours annually, compared with Hyder House’s 212,000 kilowatt‑hours of annual use.

The presenter outlined legal and timing constraints tied to the federal tax credit, saying the county must be “started and substantially under construction by 07/04/2026” to preserve certain eligibility windows and that projects over 1.5 megawatts face additional prevailing‑wage and U.S.‑sourcing rules. He warned of risk if the Internal Revenue Service or another authority disallowed credit eligibility, and said that structuring the first project as a PPA shifts much of that risk to the contractor.

He recommended batteries be considered in tandem with solar to (1) reduce demand charges, (2) provide backup power during outages, and (3) enable a microgrid design that could eliminate reliance on diesel generators. He gave order‑of‑magnitude cost examples: Tesla “megapacks” for large resilience needs would cost multiple millions and require significant site space; smaller battery packs sized to carry a facility through a night would be less costly. He said the contractor is an authorized Tesla installer and can provide different battery chemistries.

Commissioners and staff discussed siting — the contractor suggested 13 acres behind the jail and nursing home might host dozens of trackers, and noted wetlands could be avoided and panels screened with landscaping. He said project phasing could split capacity across meters so the county stays below single‑site caps that affect tax credit treatment.

The contractor offered to return with a concrete proposal and cost estimates for both a PPA and a county‑owned purchase option. County staff agreed to circulate those numbers, and the presenter said he would email an ROI and the two contract options for review.

If the county moves forward, the presenter recommended the Hyder House pilot be completed quickly to demonstrate the technology and inform larger financing or bonding decisions for the jail and other facilities.