The director of the Japan Renewable Energy Foundation ( JREF ) , Mika Suzuki , said that the country 's utility companies are still at the early stages of learning how to integrate renewable energy , given the difficulties they have in integrating it into Japan 's electricity grid . These include a successful reform of Japan’s electricity market, a process which is now underway, with the appointment of a regulator or watchdog to oversee the first major stage of that process – enabling interconnection between the various regional grid networks and the utilities that run them. Ohbayashi said that surveys showed during this summer that solar energy only contributed towards 10 % of the country 's electricity during peak demand . Despite Japan 's current problems , Suzuki explains that reform is on its way following the appointment of a regulator , which will oversee the interconnection between the regional grid networks and the utilities that run them themselves .
The director of the Japan Renewable Energy Foundation ( JREF ) , Mika Suzuki , said that the country 's utility companies are still at the early stages of learning how to integrate renewable energy , given the difficulties they have in integrating it into Japan 's electricity grid . Ohbayashi said that surveys showed during this summer that solar energy only contributed towards 10 % of the country 's electricity during peak demand . Despite Japan 's current problems , Suzuki explains that reform is on its way following the appointment of a regulator , which will oversee the interconnection between the regional grid networks and the utilities that run them themselves .