第三次中美战略与经济对话于5月9日在华盛顿召开，5月10日，中国河北廊坊市政府会同新奥集团与美国夏洛特市政府会同美国杜克能源公司（Duke Energy）签署了《中美绿色合作伙伴四方协议》。
根据协议，四方的合作将在清洁能源的生产和存储、智能电网技术以及高效能源解决方案等方面展开。
The EcoPartnership program is administered by the U.S. Department of State and the People's Republic of China's National Development and Reform Commission (NDRC). It focuses on and encourages a wide range of collaborative public-private activities designed to stimulate innovation and sustainable economic development.
This EcoPartnership agreement follows a Jan. 18, 2011, announcement of a Duke Energy and ENN collaboration on the development of green cities in China and the U.S.
The EcoPartnership will focus on cleaner energy generation, smart grid technologies, energy storage and energy efficiency solutions.
Duke Energy and ENN's initial EcoPartnership projects will involve testing of solar power generation, substation and community battery storage capabilities, grid management optimization and energy efficiency initiatives.
The larger EcoPartnership collaboration will be complemented by best-practice sharing at the municipal level. Specifically, the cities of Charlotte and Langfang (which is located approximately 40 miles southeast of Beijing) will collaborate on promoting energy efficiency education and encouraging local community action.
Others may join this EcoPartnership in the future, including universities, additional companies and other public entities.
David Mohler, Duke Energy's chief technology officer, and Dr. Zhongxue Gan, vice chairman and CTO of ENN Group, signed the EcoPartnership agreement in the presence of Secretary Clinton, Assistant Secretary of State Dr. Kerri-Ann Jones and NDRC Minister Zhenhua Xie. Charlotte Mayor Anthony Foxx and Langfang Mayor Aimin Wang also participated in the signing.
About Duke Energy Corporation
Duke Energy is one of the largest electric power holding companies in the United States. Its regulated utility operations serve approximately 4 million customers located in five states in the Southeast and Midwest, representing a population of approximately 12 million people. Its commercial power and international business segments own and operate diverse power generation assets in North America and Latin America, including a growing portfolio of renewable energy assets in the United States. Headquartered in Charlotte, N.C., Duke Energy is a Fortune 500 company traded on the New York Stock Exchange under the symbol DUK. More information about the company is available on the Internet at: www.duke-energy.com.