National Grid and Opower (NYSE: OPWR), the global leader in cloud-based software for the utility industry, today announced that Opower's Energy Efficiency program has saved utility customers in Massachusetts over $70 million on their energy bills.

Working with Opower, National Grid has helped customers reduce their electric usage by 300 million kWh and gas usage by 18 million therms - the equivalent of eliminating more than 300,000 metric tons of carbon dioxide from the environment.

"We want to provide customers the information they need to make informed choices about energy consumption," said Marcy Reed, president of National Grid in Massachusetts. "As the results indicate, this program has helped our customers achieve amazing savings. We're pleased to have joined forces with Opower on this innovative program."

National Grid was the first utility on the east coast to deploy Home Energy Reports from Opower's Energy Efficiency program. The program pairs behavioral science with data analytics to provide clearly defined and actionable information that motivates customers to lower their energy usage, participate in National Grid sponsored energy efficiency programs and save on their monthly bills.

"National Grid is one of the most progressive utilities in the country and a leader in customer engagement," said Dan Yates, CEO of Opower. "Its focus on innovation and the delivery of personalized insights at scale have paid off, both for consumers' wallets and for the environment."

National Grid has been widely recognized for its leadership in energy efficiency. In 2014 the American Council for an Energy-Efficient Economy (ACEEE) named Massachusetts the most energy efficient state for the fourth consecutive year. In May, the ACEEE ranked Boston - for which National Grid is a natural gas provider - first out of 51 cities for energy efficiency. The company's contribution to this success included a nearly 3 percent increase in total gas savings and corresponding reduction in greenhouse gases from residential-focused activity, compared to 2013.

About Opower

Opower (NYSE:OPWR) is an enterprise software company that is transforming the way utilities engage with their customers. Opower's customer engagement platform enables utilities to reach their customers at moments that matter through proactive and digitized communications that drive energy savings, increase customer engagement and satisfaction, and lower customer operation costs. Opower's software has been deployed to more than 95 utility partners around the world and reaches more than 50 million households and businesses. For more information, please visit and follow us on Twitter at @Opower.

Forward-looking Statements

This release contains forward-looking statements, including statements regarding benefits from the use of Opower's solutions. Any statements in this press release about future expectations, plans and prospects for Opower represent the Company's views as of the date of this press release. These forward-looking statements are subject to a number of risks, uncertainties and assumptions. While the Company may elect to update these statements at some point in the future, the Company specifically disclaims any obligation to do so.

About National Grid

National Grid is an international energy delivery company. In the U.S., National Grid delivers electricity to approximately 3.3 million customers in Massachusetts, New Hampshire, New York and Rhode Island, and manages the electricity network on Long Island under an agreement with the Long Island Power Authority (LIPA). It is the largest distributor of natural gas in the northeastern U.S., serving approximately 3.4 million customers in Massachusetts, New Hampshire, New York and Rhode Island. National Grid also owns over 4,000 megawatts of contracted electricity generation that provides power to over one million LIPA customers.

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