Massachusetts

Civic/Governance Barriers activates on moratorium-class action (C1), litigation/recall pathway (C4) — governance instruments on the electoral, legislative, and regulatory surface (protocol §10; Overview Civic breakout). Capital Flows/Insurability is a dominant stressor: Gov. Healey paused the 20-year sales/use tax exemption pending ratepayer guardrails, and the House amendment mandates DPU data-center tariffs preventing cost-shift onto residential/income-eligible customers (Mass.gov (Healey halt), InsideLowell (House amendment)). Water/Geology is a co-dominant stressor: Lowell fights and Everett's ordinance center on water withdrawal/closed-loop cooling and the Markley facility's water impacts (Harvard Crimson (Lowell water), Boston Globe (Everett)). Energy/Power (grid strain, renewable mandates) underlies the affordability bill.

None identified as data-center-defining. No 2026 Massachusetts federal, statewide, or municipal campaign surfaced with data centers as a central declared issue; the fight is in local zoning (Lowell, Everett, Holyoke) and Beacon Hill policy, plus federal ratepayer advocacy by Sen. Ed Markey (WBUR, Sen. Markey release).

No statewide moratorium/ban, but strong statewide executive action: Gov. Healey paused acceptance of new data-center sales-tax-exemption applications until guardrails are in place (June 25, 2026) (Mass.gov (Healey halt)). Local: Lowell enacted a 360-day (one-year) moratorium on new/expanded data centers by a 10-0 vote on March 10, 2026 — the state's first (Lowell ordinance PDF, Yale Law); Holyoke enacted a ban in June 2026 (TIME); Everett adopted restrictive zoning capping data centers at 20,000 sq ft / 5 MW (Boston Globe (Everett)).

The Massachusetts House passed comprehensive energy-affordability legislation (128-27, Feb. 26, 2026) with an Elliott/Hong amendment (new Section 163 of Ch.164) requiring large data centers (20+ MW) to procure >=80% renewable energy, requiring DPU-approved data-center-specific tariffs protecting residential/commercial ratepayers from cost increases, and battery-storage requirements before fossil backup; the bill advanced to the Senate (InsideLowell (House amendment)). Filed bill HD5404 would bar distribution companies from raising residential rates due to large data-center load (MA HD5404 PDF). Sen. Markey led a federal push urging state regulators to protect ratepayers (Sen. Markey release).

None identified. No Nov 2026 statewide Massachusetts data-center ballot measure was identified; activity is executive, legislative, and local-zoning (Mass.gov (Healey halt)).

Markley Group's 352,000 sq ft Lowell data center: its expansion is halted by the Lowell moratorium and a resident lawsuit filed in Superior Court (April 30, 2026); Everett's 105-acre former ExxonMobil site is now capped by ordinance (Boston Globe (Lowell), Conservation Law Foundation, Boston Globe (Everett)).

Jobs/benefits framing present: Everett's ordinance requires permanent jobs within 1,000 feet of any data center; the Lowell debate weighed the facility's tax contributions vs. neighborhood harms (Boston Globe (Everett), InsideLowell (Daily Pulse)). Not a standalone dominant domain.

Emerging cluster; few large data centers exist statewide, with the Markley Group's 352,000 sq ft Lowell facility the highest-profile large site and neighborhood fights concentrated in Lowell and Everett (WBUR, Boston Globe (Lowell)).

"I am halting any tax incentives for data centers until we have strong protections in place for our residents and communities against higher gas and electric bills." — Gov. Maura Healey (Mass.gov).

Mass.gov (Healey halt); Lowell ordinance PDF; Yale Law; InsideLowell (House amendment); WBUR; Conservation Law Foundation; Boston Globe (Everett); TIME (Holyoke); Harvard Crimson (Lowell water)