NSTAR Announces Second Quarter 2009 Conference Call

BOSTON--(Business Wire)--
NSTAR (NYSE: NST) announced today that it is holding a conference call to
discuss its second quarter 2009 financial results. The conference call will be
held on Friday, July 24, 2009 at 9:00 a.m. (Eastern Time). Earnings information
will be released after market hours on Thursday, July 23, 2009.

The call is being webcast and can be accessed on NSTAR`s corporate
website-www.nstar.com-by selecting "Investor Relations" then "Webcast." A replay
of the call will be archived on NSTAR`s website in the Investor Relations
section under "Financial Information" and then "Webcast Archives."

Profile

NSTAR, headquartered in Boston, is an energy delivery company with revenues of
approximately $3.4 billion and assets of $8.2 billion that serves 1.4 million
customers in Massachusetts, including approximately 1.1 million electric
distribution customers in 81 communities and 300,000 natural gas distribution
customers in 51 communities. NSTAR also conducts non-utility, unregulated
operations. For more information, go to www.nstar.com.

NSTAR
John Moreira or John Gavin, 781-441-8338
ir@nstar.com

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