Jupiter Power discusses plans for proposed 700 MW storage project in Middlesex County, MA
Jupiter Power is aiming to make a former Exxon Mobil-owned oil terminal site into a 700 MW battery storage facility in Everett, Massachusetts — a project the developer believes “perfectly captures” the state’s clean energy goals and supports future offshore wind development.
Planned to come online in 2028, Trimount includes two connections at the Mystic substation, and Jupiter will repurpose existing grid infrastructure from the retired 100-year-old oil terminal site.
“Energy storage facilities support both the retirement of pollution-emitting power plants and the interconnection of future renewable resources,” Jupiter stated on its Trimount project page.
Jupiter announced it is investing more than USD 500m in Everett via the construction of this project, and the project supports the state’s goals of 50% CO2 reduction by 2030 and carbon neutrality by 2050.
The developer mentions that with approval for a Designated Port Area, Trimount will be “providing energy storage integration that would support future offshore wind development.”
“Clean Peak revenues are very important” and also pointed to more pending legislation in Massachusetts that may impact procurements and the speed through which renewable energy applications are approved, said Jupiter spokesperson Maggie Glynn in an interview with NPM.
Clean Peak’s goal is to increase clean energy generation during high-demand periods by requiring all energy suppliers in the state to procure a minimum percentage of their total annual electricity sales to end-use customers. For the Clean Peak program in Massachusetts, which is done by purchasing Clean Peak Energy Certificates.
Glynn told NPM Trimount’s 2028 commercial operation date “was not eligible for prior rounds in the capacity market.”
NPM queue data identified a pre-operational storage project being developed by Jupiter, in Middlesex County, with a point-of-interconnection location the Mystic 345 kV between breaker 101, 106 and 107.
The Trimount project is currently in its community outreach phase and acquiring permits. Next, Jupiter will begin the cleanup of the retired oil terminal, which it estimates could take up to two years.
One hundred miles away from the Trimount site, Jupiter Power is planning a 200 MW battery storage facility, named Streamfield.
Streamfield will offer battery storage on two parcels of land in Westfield, Mass. Jupiter said it plans to start construction in 2026 and have the storage site in service by mid-2027.
In the morning and evening hours, power is in the highest demand, and Jupiter said it intends to pull from these storage facilities to meet supply needs during those peak hours.
ENGIE North America weighed in during the Clean Peak program's early days, saying it supports Massachusetts and its goal to become the first state to implement a Clean Peak standard. The state's Department of Energy Resources (DOER) estimated the program will reduce CO2 emissions by 560,000 metric tons over 10 years, according to data produced when the program was first implemented in October 2020.
In a comment to NPM Friday, ENGIE said it anticipates changes to the program that will favor ratepayers and battery storage owners.
"ENGIE is eagerly awaiting the anticipated release of updates to the Clean Peak Energy Standard which we hope will bring added value for both ratepayers and battery storage owners," a spokesperson told NPM. "We are confident that given the administration’s extensive stakeholder engagement, that program updates will support the deployment of battery storage at the scale needed to reliably decarbonize the Commonwealth’s electric grid.”
*This story was originally published exclusively for NPM subscribers last month.
NPM US (New Project Media) is a leading data, intelligence and events company dedicated to providing origination led coverage of the renewable energy market for the development, finance, advisory & corporate community. Download our new mobile app.