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Information contained in this news release is current as of the date of the press announcement, but may be subject to change without prior notice.

April 13, 2017

Horizon Welcomes new Exelon-JAPC Joint Venture

London, 13th April 2017 - Horizon Nuclear Power a wholly owned subsidiary of Hitachi, Ltd. (TSE:6501), has today welcomed the formation of a joint venture between Exelon and The Japan Atomic Power Company which will support the company as it continues to progress its nuclear new build project at Wylfa Newydd. The joint venture – to be known as JExel Nuclear – brings together two companies with whom Horizon has already been working and will provide advisory services and operations and maintenance management services.

Duncan Hawthorne, Chief Executive Officer at Horizon said: "We are delighted that two of the companies with whom we already working closely have come together to provide us with such a strong and consolidated service. We look forward to continuing to draw on their combined knowledge and experience of the global nuclear industry as we successfully deliver Wylfa Newydd and grow Horizon into a new, leading nuclear operator."

Horizon announced its deal with JAPC in July 2016 and the partnership with Exelon in February 2017. Exelon – a leader in nuclear safety and operational excellence, who operate the largest fleet of nuclear plants in the United States – have embedded a team of four specialists in Horizon. Working alongside Horizon's own growing team, they are providing expertise in engineering, maintenance, operations and training, as Horizon develops its own nuclear operating model.

Horizon's partnership with JAPC draws on their experience and know-how gained from many years of involvement with boiling water reactors, covering design, construction, operation and maintenance. JAPC oversaw the construction of Japan's first light water reactor and is supporting Horizon in areas such as construction costing, licensing, and planning for commissioning.

About Horizon Nuclear Power

Horizon Nuclear Power was formed in 2009 to develop new nuclear power stations in the UK. It was acquired by Hitachi Ltd of Japan in November 2012. The company is developing plans to build at least 5,400MW of new nuclear power generation plant at Wylfa on the Isle of Anglesey and Oldbury-on-Severn in South Gloucestershire. Its power station sites will employ 850 people each once operational with a construction workforce of between 8,000 and 10,000. For more information about Horizon, please visit

About Exelon

Exelon Generation, a subsidiary of Exelon Corporation (NYSE: EXC), is one of the largest, most efficient clean energy producers in the U.S., with a generating capacity of more than 32,500 megawatts. Exelon Generation operates the largest U.S. fleet of carbon-free nuclear plants with 19,400 megawatts of capacity from 22 reactors at 13 facilities in Illinois, Maryland, New Jersey, New York and Pennsylvania. Exelon Generation also operates a diverse mix of wind, solar, landfill gas, hydroelectric, natural gas and oil facilities in 16 states with more than 13,100 megawatts. Exelon Generation has an industry-leading safety record and is an active partner and economic engine in the communities it serves by providing jobs, charitable contributions and tax payments that help towns and regions grow.

Follow Exelon Generation on Twitter @ExelonGen and @ExelonNuclear, view the Exelon Generation channel on YouTube, and visit:

About The Japan Atomic Power Company

The Japan Atomic Power Company (JAPC) was established in November 1957 as a power company solely engaged in nuclear energy in Japan. Since then, the company has continued to play a leading role in the electric power industry as a pioneer in nuclear power generation through various projects, including the construction of the first commercial nuclear power plant in Japan and the construction, operation and decommissioning of power plants.

JAPC owns Tokai Power Station (GCR), which is currently under decommissioning, Tokai No.2 Power Station (BWR) and Tsuruga Power Station, which has Unit1 (BWR) and Unit2 (PWR). Also, Advanced-PWRs are currently under construction in its Tsuruga site. For more information about JAPC, please visit the company's website at

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