You do not have to be a current shareholder to participate in the Plan. You may enroll in the Plan by making an initial investment of at least $500, which will be applied to the initial purchase of Common Shares.

Participants in the Plan have the opportunity to make weekly optional cash investments. The minimum optional cash investment amount is $50. The maximum amount of optional cash investments that you may invest in any calendar year is $250,000, including any initial investment. Participants in the Plan may make automatic monthly investments for a specified amount (not less than $50 per month) through an Automated Clearing House withdrawal from their savings or checking account for purchases of Common Shares. Employees have the additional option of utilizing payroll deductions to make the initial and subsequent optional cash investments.

NSTAR Common Shares trade on the NYSE under the ticker symbol "NST."

Features and Benefits
Participants in the Plan may:

• reinvest all or part of their Common dividends, conveniently and economically
  
• reinvest all or part of the dividends on their NSTAR Electric Preferred Stock
  
• purchase additional Common Shares with cash, as often as once per week ($50 minimum-$250,000 annual maximum)
  
• use electronic funds transfer from their bank account for automatic monthly purchase of shares
  
• sell shares through the Internet or by telephone
  
• deposit share certificates in safekeeping
  
• receive a regular statement of account with a complete record of each transaction
  

Full investment of funds is possible under the Plan because the Plan permits fractional shares, as well as full shares, to
be credited to participants' accounts. In addition, dividends in respect of such fractions, as well as on full shares, will be credited to participants' accounts.

Administration
Computershare Trust Company, N.A. ("Computershare"), a federally chartered trust institution, administers the Plan for participants, maintains records, sends statements of account to participants following the completion of any activity affecting the balance of an account and performs other duties relating to the Plan. Correspondence to Computershare should be sent to Computershare Trust Company, N.A., NSTAR Shareholder Services, P.O. Box 43078, Providence, RI 02940-3078. Computershare may be contacted by calling 1-800-338-8446 or for the TDD for the hearing impaired by calling 1-800-952-9245. You may also contact Computershare through its website at www.computershare.com.