The staff of the Federal Energy Regulatory Commission has prepared a final environmental impact statement (EIS) for the Algonquin Incremental Market Project (AIM Project) proposed by Algonquin Gas Transmission LLC.
The final EIS, issued on Jan. 23, said that Algonquin requests authorization to expand its existing pipeline system from an interconnection at Ramapo, New York, to deliver up to 342,000 dekatherms per day of natural gas transportation service to the Connecticut, Rhode Island, and Massachusetts markets.
The project would involve the construction and operation of about 37.4 miles of natural gas pipeline and associated equipment and facilities in New York, Connecticut, and Massachusetts. The majority of the pipeline facilities (about 26.3 miles or 70% of the total 37.4 miles) would replace existing Algonquin pipelines, while the remainder of the pipeline facilities (about 11.1 miles or 30%) consists of new mainline pipeline, new loop pipeline, and one new lateral pipeline.
In addition to the pipeline facilities, Algonquin would: modify six existing compressor stations and 24 existing metering and regulating (M&R) stations; construct three new M&R stations; and remove an existing M&R station.
Modifications to the six existing compressor stations include the installation of 81,620 total horsepower (hp) in New York, Connecticut, and Rhode Island. Algonquin also proposes to abandon four existing compressor units for a total of 10,800 hp at one compressor station in New York.
Algonquin’s stated objectives for the project are:
- to provide the pipeline capacity necessary to transport additional natural gas supplies to meet the immediate and future load growth demands of local gas utilities in southern New England;
- eliminate capacity constraints on existing pipeline systems in New York State and southern New England;
- provide access to growing natural gas supply areas in the Northeast region to increase competition and reduce volatility in natural gas pricing in southern New England; and
- improve existing compressor station emissions through the replacement of existing compressor units with new, efficient units.