Constellation agreed to acquire the operating 609-MW Rhode Island State Energy Center from a Shell subsidiary for $715 million, subject to regulatory approvals and other closing conditions.
Published by Allstream Insiders
Allstream Insiders Summary
Constellation has agreed to acquire 100% of RISEC Holdings, LLC, owner of the Rhode Island State Energy Center, from Shell Energy North America (US), L.P. for $715 million. The acquisition would add an operating 609-megawatt combined-cycle natural gas power plant in Johnston, Rhode Island, to Constellation’s merchant generation portfolio.
The Rhode Island State Energy Center has supplied the New England power grid since 2002. The facility includes two combustion turbines and one steam turbine and sells electricity and capacity into the competitive ISO New England wholesale power market.
The transaction has been announced but has not closed. Completion remains subject to customary regulatory approvals and other closing conditions. Constellation said RISEC will continue operating under its current ownership until the transaction closes.
Rhode Island State Energy Center Acquisition Details
| Transaction item | Company-announced detail |
|---|---|
| Buyer | Constellation |
| Seller | Shell Energy North America (US), L.P., a Shell plc subsidiary |
| Interest being acquired | 100% of RISEC Holdings, LLC |
| Purchase price | $715 million, subject to customary purchase-price adjustments |
| Facility | Rhode Island State Energy Center |
| Location | Johnston, Rhode Island |
| Generation capacity | Up to 609 MW |
| Technology | Natural gas-fired combined-cycle generation with two combustion turbines and one steam turbine |
| Market | ISO New England wholesale electricity and capacity markets |
| Transaction status | Pending regulatory approvals and satisfaction of other closing conditions |
What is the Rhode Island State Energy Center?
The Rhode Island State Energy Center is an operating natural gas-fired combined-cycle power plant capable of generating up to 609 MW. Located in Johnston, the facility has served the New England grid since 2002.
Combined-cycle generation uses exhaust heat from combustion turbines to produce steam that powers an additional steam turbine. Constellation said this configuration allows RISEC to generate additional electricity more efficiently and with lower emissions than a traditional single-cycle natural gas plant.
The plant participates in the ISO New England market, where it sells electricity and generation capacity. If the acquisition closes, Constellation expects the facility to become part of its merchant generation portfolio.
Why is Constellation acquiring the Shell-owned facility?
Constellation said RISEC would complement its customer business and generation position in New England. The company described the plant as being well positioned on both the electric grid and the natural gas pipeline system.
Constellation Chairman, President and CEO Joe Dominguez said the company views the facility as a reliable asset that can support families and businesses across New England. The announcement does not identify a new power-purchase agreement, expansion project or change to RISEC’s generating capacity.
What remains before the RISEC acquisition closes?
Constellation must receive customary regulatory approvals and satisfy the transaction’s other closing conditions. The company did not provide a specific target closing date in its September 10 announcement.
Until closing, RISEC will remain under its current ownership. The public announcement does not identify which individual regulatory authorizations are required or state that ownership has already transferred.
Allstream perspective: this is an ownership transaction, not a new-build announcement
The transaction would transfer an existing operating power plant from Shell to Constellation; it does not announce construction of a new facility or expansion of RISEC. Constellation did not disclose new capital projects, equipment additions, maintenance programs, contractor awards or procurement packages associated with the acquisition.
Any future engineering, maintenance or supply-chain implications should be evaluated through subsequent Constellation announcements, permit filings and procurement information rather than inferred from the ownership agreement itself.








