Planning & Economic Development Bd./Exelon Site Plan Continuation - Medway Town Hall

Event Date: 
Tuesday, July 26, 2016 - 7:45pm

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ing & Economic Development Board

155 Village Streel

Medway. Massachusetts 02053

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MEMORANDUM

July 13, 2016

TO:

FROM:

RE:

Mary jane White, Town Clerk

Town of Medway Departments, Boards and Committees

Susy Affleck-Child s, Planning & Economic Development Coordinator

Public Hearing Continuation - Exelon Site Plan, 34 West & 9 Summer Streets

CONTINUATION DATE: Tuesday, July 26,2016 at 7:45 p.m.

LOCATION: Medway Town Half - Sanford Hall, 155 Village Street

At its meeting on July 12, 2016, the Planning and Economic Development Boord voted to continue

the public hearing on the application of Exe/on West Medway He and Exelon West Medway II, LLC of

Kennett Square, PA for major site plan approval of the proposed Exelon expansion project to Tuesday, July

26,2016 at 7:45 p.m. at Town Hall, 155 Vii/age Street. The focus topic for the Z6'h hearing will be to finalize

the site plan decision and vote.

The proposed project is for an expansion of the existing three-tu rbi ne, oil fired, 135 mega-watt West

Medway Station peak power generating facility located at 34 West and 9 Summer Streets. The planned

expansion entails the construction of two lOO-megawatt (MW) simple-cycle, fast-starting, peaking electric

combustion turbine generators and associated equipment and appurtenances on approximately 13 acres of

the 94 acre property. Each of the two stacks will be 160' ta ll. The generators will run primarily on natural gas

using low sulfur diesel oil as a back-up.

The project will interconnect with Eversource via an approximately 1,200 linear foot overhead circuit

from a transformer to t he Eversource switchyard on the western portion of the property utilized and

controlled by Eversource through an easement agreement. The energy generated by the project will be

distributed by Eversource to the Southeast Massachusetts/Rhode Island ISO load zone to help meet energy

demand during peak times.

The project includes a control/administration and facility services building, a trailer-mounted

demineralizer system, an enclosed gas compressor station, a one-million gallon fuel oil tank, a 500,000 gallon

service water tank, a 450,000 gallon demineralized water storage tank, a 12,000 gallon fully-d iked and covered

aqueous ammonia storage tank, advanced emissions control equipment, and a perimeter access road. Site

access will be controlled via a motorized security gate located off the relocated driveway from Summer Street.

The proposed facility will also include full acoustical enclosures for the gas tu rbines and generators, a 55' high

noise wall, and a full complement of acoustical controls. A 3,080 linear foot lateral interconnection to the

existing Algonquin Gas pipeline is also planned along with an associated 14' x SO' building to conta in flow

cont rol and metering equipment, and a 12' by 16' building to contain gas monitoring and analysis equipment.

If you have any final comments on this project, please send them to me by July 20'h. The revised

Exelon site plan dated June 17, 2016 has been posted to the Board's web page at:

http://www.townofmedwoy.orq/sites/medwavma/files/uploads/6-17-16 revised west medway ii permit plan set. pdf

Telephone: 508-533-329 1 Fax; 508·32 1·4987

planningboard@townofin edway.org