Eversource 2006 Annual Report Download - page 16

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PROJECT STATUS UPDATE
PROJECTS COMPLETED RESULTS
345-KV Bethel-to-Norwalk, Connecticut
21-mile, $350 million transmission line upgrade through four towns
in southwest Connecticut to improve reliability and reduce future
congestion costs
In service October 2006, two months ahead of schedule and
under budget by more than $10 million, improving reliability,
reducing congestion and saving Connecticut consumers
millions of dollars of future congestion costs
Northern Wood Power Project
Portsmouth, New Hampshire
$75 million conversion of a 50-MW boiler from coal to wood at
Schiller Station, generating renewable energy, producing renewable
energy certificates and reducing air emissions through the burning
of clean wood chips
In service December 2006, on schedule and under budget by
$1 million, reducing emissions by more than 380,000 tons
annually, while providing much-needed support to the state’s
forestry industry
Killingly Substation
$29 million new bulk power transmission substation in northeast
Connecticut
In service December 2006, on schedule and under budget by
$3 million, increasing system reliability
PROJECTS UNDER CONSTRUCTION STATUS
Liquefied Natural Gas Facility
Waterbury, Connecticut
$108 million storage and production facility capable of storing the
equivalent of 1.2 billion cubic feet of gas will provide price and
supply stability during natural gas peak demand periods
91% complete as of March 2007 and on schedule to be in
service in July 2007 for the 2007-2008 heating season
138-KV Long Island Replacement Cable
$72 million, 11-mile replacement of existing electric cables between
Connecticut and Long Island tomaintain reliability and eliminate
environmental impacts under Long Island Sound through use of
new technology
Cable manufacturing under way in November 2006 and
project is on schedule to be in service in 2008
345-KV Middletown-to-Norwalk, Connecticut
69-mile, $1.05 billion transmission line with 57 miles of 115-KV line
from central Connecticut to the southwest corner of the state.
Approximately 24 miles (one-third of the line) installed underground
The project, a joint project with United Illuminating, is ahead of
scheduleand approximately20% completeas of March 2007.
Construction began on schedule in April 2006, 12 months after
receiving Connecticut Siting Council approval. Scheduled to be
in servicein 2009
Glenbrook Cables
Norwalk-to-Stamford, Connecticut
$183 million, nine-mileinstallation of new underground 115-KV
transmission line in southwest Connecticut to improve reliability
and keep pace with customers’ growing electricity needs
Construction began October 2006. Scheduled to be in service
in 2008
PROJECTS BEING PLANNED STATUS
Springfield 115-KV Projects*
115-KV line and substation upgrades and modifications in the
greater Springfield, Massachusetts, area for added reliability
The list of required upgrades has been identified. The technical
approval process with the Independent System Operator of New
England (ISO-NE) began in January 2007
Greater Springfield Reliability Project*
One of four 345-KV interdependent southern New England
transmission reinforcements. This project involves building
anew 345-KV “beltway” around Springfield, Massachusetts,
to strengthen system reliability in the area
Central Connecticut Reliability Project*
One of four 345-KV interdependent southern New England
transmission reinforcements. This project involves building a new
345-KV transmission line in central Connecticut to help move power
between eastern and western portions of Connecticut
Planning studies led by ISO-NE with NU and National Grid have
provided scope and definition to these projects. Detailed studies
areunder way, and the ISO-NE technical review and approval
process was started in January 2007
Interstate Reliability Project*
One of four 345-KV interdependent southern New England
transmission reinforcements. This project would be a joint
project with National Grid to construct a new, interstate
345-KV line to strengthen the ties among Massachusetts,
Rhode Island and Connecticut *Collectively, these four projects represent NU’s portion of the New England
East-West Solution (NEEWS), formerly known as the Southern New England
Transmission Reinforcement (SNETR) project.