Councilor Tabor asks Council to request a plan for solar on city land and buildings, combining near-term small high-return projects with a 1.7-megawatt array at the closed Jones Avenue landfill, carried in the capital plan at $4.1 million, with a report back on October 13. The Energy Advisory Committee voted unanimously on September 2 to make the request.
The case as put. The memo cites committee minutes for a combined single-system array being cash-flow positive from year one at about $167,000 in net savings, rising past $200,000 a year, and over $500,000 a year once the bond is paid; a net benefit of $3.894 million in present value over 25 years; and reductions of 11% in the city's carbon emissions and 36% in its electricity emissions.
The consultant and the committee reach opposite conclusionsApex Analytics recommends splitting the project into two sub-megawatt systems — 950 kW at Jones Avenue and 750 kW wired to the high school — because systems above 1 MW trigger an ISO New England study adding nine to eleven months, which would miss the federal tax credit deadline of December 31, 2027. Apex puts that credit at roughly $1.64 million, enough to more than offset the higher build cost of two systems. Councilor Tabor's memo reports that city staff and the committee did not find the split realistic, judging that Apex underestimated procurement, design review and permitting for a line crossing wetlands. Both documents are in the packet and they do not agree.
UnitsThe memo describes the split as "750 megawatts to Portsmouth High School, and 950 megawatts entering the grid." The consultant's report says 750 kW and 950 kW. A thousandfold difference, almost certainly a slip, but it is in the document Council is voting on.
The capital plan sheet doesn't yet say $4.1 millionProject BI-27-PW-52 currently shows $5,050,000 across FY27–32, structured as $50,000 in FY27, $3,000,000 in FY28 from a power purchase agreement, and $1,000,000 bonds in each of FY30 and FY32. The motion asks Council to carry forward and refine that element as a $4.1 million item — which is a different amount, a different year, and a different funding mechanism from what the sheet shows.
Also referenced: a separate study identified possible rooftop solar at the Public Works building, City Hall and Fire Station 2, and behind-the-meter options at the Madbury water treatment plant and the Pease wastewater plant. Public Works has recommended prioritising those smaller, higher-return projects in the near term.
Sample motionMove that Council request a plan for solar generation on City land and buildings incorporating Public Works recommendations, including near-term high-return projects and a Jones Avenue array as a $4.1 million item in the Capital Improvement Plan, with a report back on October 13, 2026.