Boston-based Vicinity Energy, the company that supplies steam heat to much of downtown, is headed for new majority owners under a deal valuing the firm at $2.9 billion, the Boston Globe reported on Sept. 30, 2026. Harrison Street Asset Management, a Chicago real estate investment firm owned by Colliers International, is teaming with Kenon Holdings to buy controlling interest from French private equity firm Antin Infrastructure Partners.
Vicinity Energy Boston Sale: Deal Terms
According to the Globe, Harrison Street announced the transaction on Wednesday. Antin, which bought Vicinity from Veolia in early 2020 after striking a deal valued at about $1.25 billion in 2019, will keep a minority stake. The Globe said Vicinity’s enterprise value has essentially tripled under Antin’s ownership.
The sale still needs regulatory approvals and is expected to close in the first half of 2027, the Globe reported. Vicinity employs about 550 people, including roughly 210 in Boston, and serves about 1,000 buildings across 12 U.S. cities with steam plus chilled and hot water.
eSteam and Kendall Plant Decarbonization
The Globe reported that Vicinity is expanding “eSteam,” steam generated with electricity rather than fossil fuels. About 18 months after the company installed its first electric boiler at the Kendall plant in Cambridge, roughly 5% of the steam volume it sells in Boston and Cambridge comes through eSteam, CEO Kevin Hagerty told the Globe—a pace he described as fast adoption that is still growing. The company is also installing a seven-story heat pump at Kendall, intended to capture thermal energy from the Charles River, the Globe said.
Hagerty told the Globe his team welcomes Harrison Street’s long-term investment horizon as Vicinity plans city decarbonization work out to 2050, and that Antin’s decision to retain a smaller stake signals continued confidence in the business.
What It Means for Downtown Boston Buildings
Vicinity’s Kneeland Street steam plant and network remain central to how many large downtown properties stay heated. Ownership changes of this scale often leave day-to-day operations intact while shifting capital plans; the Globe’s reporting did not describe immediate service cuts or rate changes for Boston customers. The deal lands as other Boston employers reposition footprints, including the Lundbeck Boston headquarters move and ongoing pressure on neighborhood storefronts such as Allston Harvard Avenue business closings.
Our Take: Infrastructure Sale, Climate Timeline
This section is The Boston Report’s analysis and opinion, separate from the sourced reporting above.
Our read is that a nearly $3 billion valuation for a district-energy company underscores how valuable Boston’s steam network remains—and how investors are betting on electrified heat. The open questions for tenants and city climate goals are whether Harrison Street funds faster eSteam and Kendall upgrades after close, and how regulators weigh reliability during the transition. For related downtown real estate shifts, see our coverage of the 133 Federal Street conversion.
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