Tohoku Electric Power : Receiving EEI’s 2017 International Edison Award for Our Shin-Sendai Thermal Power Station Replacement Project

TOHOKU ELECTRIC POWER CO., INC.

June 14, 2017

Tohoku EPCO today (June 13, local time) received the Edison Electric Institute's (EEI's)* 2017 International Edison Award for its Shin-Sendai Thermal Power Station Replacement project.

The Edison Award is the most prestigious award of EEI, an institute with a history of more than 80 years, which honors "distinguished leadership, innovation and contribution to the advancement of the electric industry for the benefit of all."

We are honored to receive this award, recognizing our efforts to develop highly efficient generation facilities with superior environmental performance and outstanding disaster prevention measures while contributing to the revitalization and development of disaster-affected local communities in our

Shin-Sendai Thermal Power Station Replacement projects, decommissioned aging Shin-Sendai Thermal Power Station Unit 1 and Unit 2 and replaced them with Shin-Sendai Thermal Power Series 3.

The Edison Award is presented annually, usually to one U.S. and one international electric power company, selected from EEI's membership. Tohoku EPCO had received International Edison Award in 2011 for "the conversion of the Sendai Thermal Power Station from an aging coal-fired to a combined- cycle generation facility" and is the only Japanese company received the award for the second time.

Tohoku EPCO continues to stably supply the electricity while contributing to revitalization of local communities affected by the Great Earthquake.

*Edison Electric Institute is an association established in 1933 with more than 300 companies, including U.S. investor-owned electric companies.

** For details of Shin-Sendai Thermal Power Series 3, please refer to our "Annual Report 2015" (pages 12 and

13) and "Annual Report 2016" (page 5) in following website. http://www.tohoku-epco.co.jp/ir/report/index-e.htm