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NSTAR Selects World Energy Solutions for Direct Install Program

Designation Creates New Opportunities for World Energy to Provide Energy Efficiency Services for Massachusetts Businesses

World Energy Solutions, Inc. (NASDAQ: XWES), a leading energy management services firm, today announced it has been selected by NSTAR (NYSE: NST), the largest Massachusetts-based, investor-owned electric and gas utility, as an approved contractor within its Direct Install Program. This program is designed to help businesses with average monthly demand of 300 kW or less save money on energy through the implementation of energy efficiency measures.

As an NSTAR Direct Install contractor, World Energy is approved by the utility to provide comprehensive energy conservation measures, including energy management systems (EMS), HVAC, retro-commissioning and installing variable frequency drives, throughout the NSTAR service territory. The cost of these efficiency projects is being supplemented directly by NSTAR, with the utility offering to pay as much as 70 percent of the total cost of qualifying lighting and mechanical retrofits.

"Becoming a go-to resource for mechanical retrofits within NSTAR's Direct Install Program is a major opportunity for our energy efficiency practice in Massachusetts and one that builds nicely on our newly won efficiency designations within Connecticut," said Bruce Buckbee, Vice President, Efficiency, at World Energy Solutions. "We are looking forward to participating in this important program, bringing the benefits of energy efficiency to a wider swath of businesses across the state."

To find out more about how World Energy can help your business become more energy efficient, contact John Duquette, Vice President, Sales, at 508-459-8151 or jduquette@worldenergy.com.

About World Energy Solutions, Inc.
World Energy Solutions, Inc. (NASDAQ: XWES) is an energy management services firm that brings together the passion, processes and technologies to take the complexity out of energy management and turn it into bottom-line impact for the businesses, institutions and governments we serve. To date, the Company has transacted more than $20 billion in energy, demand response and environmental commodities on behalf of its customers, creating more than $1 billion in value for them. World Energy is also a leader in the global carbon market, where its World Energy Exchange® supports the ground-breaking Regional Greenhouse Gas Initiative's (RGGI) cap and trade program for CO2 emissions. For more information, please visit www.worldenergy.com.

This press release contains forward-looking statements that are subject to risks and uncertainties that could cause actual results to differ from those indicated in the forward-looking statements. Such risks and uncertainties include, but are not limited to the following: our revenue and backlog are dependent on actual future energy purchases pursuant to completed procurements; the demand for our services is affected by changes in regulated prices or cyclicality or volatility in competitive market prices for energy; and there are factors outside our control that affect transaction volume in the electricity market. Additional risk factors are identified in our Annual Report on Form 10-K and subsequent reports filed with the Securities and Exchange Commission.