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Planning board approves 333.2 kW solar expansion at Tuttle Road landfill; town to own array
Summary
The board unanimously approved a 333.2 kW addition to the town‑owned landfill solar array at 290 Tuttle Road. Revision Energy presented construction plans emphasizing crushed‑stone ballast to protect the landfill cap; the town says the project will deliver about 450,000 kWh annually to municipal accounts.
The Cumberland Planning Board unanimously approved a 333.2‑kilowatt addition to the town‑owned solar array located at 290 Tuttle Road, subject to the town receiving a required solid‑waste permit before pre‑construction.
Revision Energy representative Alex Roberts told the board the project will be owned outright by the town and is expected to generate roughly 450,000 kilowatt‑hours annually to offset municipal Central Maine Power accounts. The company said interconnection studies and applications are submitted and that the town’s prior 2018 array was converted from a PPA to town ownership.
To protect the landfill cap, Revision described construction methods that avoid cap penetration: newer systems will use crushed‑stone ballast baskets rather than cast‑in‑place concrete; conduit and ballast will be arranged so that no trenching or excavation of the cap is needed within the limit of waste. Engineers reported no anticipated post‑development increase in stormwater or cap settlement issues based on submitted analyses.
Board members asked about the visual effect and potential glare from panels closer to Tuttle Road, and whether the narrow area between road and fence allows any buffering. Revision said the new modules are oriented due south, similar to the existing array, and are less reflective than glass, and staff said plantings are restricted within the landfill cap limit of waste and may be limited to the narrow outside gap. The board asked staff to check with codes and engineering about modest buffering options in the narrow strip between the road and fence.
Town Manager Matt Sturgis described fiscal and climate benefits: he said the town used reserve funds and favorable tax timing to acquire the project with no immediate tax impact, expects roughly a six‑year payback and noted possible revenue from renewable energy credits, while emphasizing energy independence for municipal facilities. The board made one explicit condition that the solid‑waste permit (MDP) be submitted to the town prior to the pre‑construction conference; with that in hand the motion passed unanimously.
Staff will continue coordinating with Revision, CMP and state solid‑waste reviewers on permit timing and any feasible screening within the cap constraints.
