Massachusetts Adds Clean Power Rules to Data Centers

Massachusetts has become the third state in as many months to impose new restrictions on data‑center development, following similar measures enacted in Texas and Florida. The legislation, signed into law by Governor Maura Healey, requires developers to submit detailed environmental impact assessments and limits the size of new facilities to 1.2 million square feet per site. It also mandates that data‑center operators secure renewable‑energy agreements covering at least 50 % of their power usage and obtain local zoning approvals that consider water‑use and heat‑rejection impacts.

The law reflects growing concerns among local communities about the environmental footprint of large data‑center projects, which consume significant amounts of electricity and water and generate substantial heat. By tightening permitting requirements and setting renewable‑energy targets, Massachusetts aims to balance the economic benefits of hosting data‑center infrastructure with the need to protect local ecosystems and public utilities. The new rules are expected to apply to projects approved after the law’s effective date, and developers will need to work closely with municipal planners and state agencies to meet the updated criteria.

With Massachusetts joining Texas and Florida in tightening data‑center oversight, the trend signals a shift in how states are regulating the rapidly expanding digital‑infrastructure sector. The restrictions may slow the pace of new construction in the Commonwealth but could also encourage more sustainable practices among operators. As the industry adapts, other states may look to Massachusetts’ approach when revising their own data‑center policies.