Eversource (NYSE:ES) on April 1 said that it will soon begin work on the underground line portion of the Greenwich Substation and Line Project in Greenwich, Conn., including installing a new 115-kV electric transmission line under about two miles of local streets through the south side of town.
The project includes building a new substation on Railroad Avenue later this year, the company said, adding that the new underground line will connect the new substation to Eversource’s Cos Cob substation.
The work will not interrupt electric service to local businesses or residents, Eversource said.
“Breaking ground on this project is a significant step toward reinforcing the electric system in Greenwich to ensure our customers have reliable power during heat waves, severe cold snaps and other times of high energy use,” Eversource Vice President of Project Management Steve Sullivan said in the statement. “More than 28,000 Greenwich customers rely on us to have energy for every moment of their lives and this upgrade project will allow us to meet their energy needs while being sensitive to neighborhood aesthetics.”
According to the project webpage, the project involves two new 115-kV transmission lines, which will extend 2.3 miles from the existing Cos Cob substation on Sound Shore Drive to the new Greenwich substation at 290 Railroad Avenue. The new lines will run underground, primarily under town streets, including those in Bruce Park, the site noted.
The estimated project completion date is early 2020, according to the site.
New Hampshire rates
In other Eversource news, the company said on March 22 that it is seeking a distribution rate update in New Hampshire; Eversource said that it delayed the customary request until it completed the sale of its power plants last year.
The company noted that it has invested more than $1bn to modernize and strengthen the electric system over the past 10 years.
“We’ve had a steadfast commitment to enhancing the reliability of the electric grid, making it more resilient to New England’s extreme weather,” Eversource NH President Bill Quinlan said in the statement. “We’ve modernized our control centers and automated the system, enabling power to be redirected to our customers when interruptions occur. These investments are providing huge benefits to our customers and set the stage for a cleaner energy future in New Hampshire.”
Eversource said that the notice of intent that it submitted to the New Hampshire Public Utilities Commission is the beginning of a comprehensive process that will occur in two phases, with the first phase including the commission considering a request for temporary distribution rates to recover past investments, such as expenses associated with power restoration efforts following major storms, vegetation management, and upgrades to improve system reliability for all customers; it will also provide the opportunity for the company to flow corporate tax savings to its customers resulting from tax regulation changes.
The company said that it will then file a detailed request for permanent distribution rates for the commission to consider in late May. This filing will propose future investments to continue strengthening the electric system and to advance the integration of distributed clean energy resources in New Hampshire, Eversource said.
Following an extensive public review by the commission, a permanent rate change will be set to recover the company’s cost of delivering safe and reliable power to New Hampshire customers, Eversource said, adding that since the commission’s review process typically takes up to a year or more, permanent rates are not expected to take effect until late spring 2020.
The company said that if approved by the commission, the temporary rate would go into effect on July 1, with an average increase of about 2% across all customer groups and a total increase of $33m, or an estimated $3.50 on the monthly bill of a typical residential customer using 600 kWh per month.