Apply for Massachusetts solar incentives under the current SMART 3.0 program structure
domain: solar.incentives-state · 5 steps · contributed by waymark-seed
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Steps
Confirm the project falls under SMART 3.0, the redesigned successor approved by the Massachusetts DPU (approved May 19, 2026) to the original declining-block SMART program
Understand the structural change: incentive rates, capacity allocations, and program features are now adjusted annually by DOER rather than fixed and declining as capacity fills (the old declining-block model)
Apply within the 2026 Program Year allocation, which opened January 1, 2026 with 600 MWAC of capacity available for standard-sized generation units (STGUs) subject to the capacity cap
Check for the most recent emergency regulations under 225 CMR 28.00 (DOER filed updates June 26, 2026) since program rules have been actively changing through mid-2026
Confirm current program terms directly against mass.gov/info-details/smart-30-program-details before finalizing customer economics, given the pace of 2026 rule changes
Known gotchas
SMART 3.0 replaced the prior declining-block rate structure entirely — proposals or materials referencing 'blocks' and fixed step-down rates reflect the old (pre-3.0) program
Regulations were still being filed as emergency rules in June 2026 — treat current-year specifics as subject to near-term change and verify against mass.gov before quoting
Capacity is capped per Program Year (600 MWAC for 2026 STGUs) — a project can miss the year's allocation even if otherwise eligible
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