About ASPEn


Since A feed-in-tariff (FIT) of renewable energy started on July, 2012 in Japan, electric power generation by solar power has grown and met the domestic electricity demand of 5%, and we can say that the solar power is one of our essential energy resources. The government policy clearly mentions that until 2030, solar power as well as wind power are going to be our main power resources. It almost looks like the future of the solar power in Japan is hopeful.

However, comparing to other leading countries, Japan is still one of the least developed countries regarding renewable energy. Considering that we developed and implemented the PV system even for household purpose, the current situation of ours is not very satisfying.

In addition, the specific goal figure of energy meet by renewable energy by 2030 is 22~24%; this is exactly what makes us the ignorant nation on global warming and other energy-related issues.

We believe that one of the big reasons the PV system implementation in Japan does not make a progress is the solar power is not much accepted by the people.

When society changes, there always is a friction between the government and the people. However, as long as there is a burden on the people through the FIT system: the budget is coming from the people’s wallet, all the solar power plants owners are responsible for spreading the importance of the renewable energy as an infrastructure.

Moreover, some irresponsible owner’s solar power plants have been causing some problems such as the conflict with the living neighbors and accidents because of not putting fences around the plants.

ASPEn believes that all the PV system owners are essential in society as one of the main players in infrastructure thus responsible for a safe management of PV systems.

The world PV system became commercially and practically possible because of the technology that our countries and companies have. Now is the time for us to think about how to manage, spread the words, and be responsible for infrastructure and safety regarding the renewable energy especially solar power, as we now have more than a hundred thousand PV system owners. For those reasons above, we established ASPEn: Alliance for Solar Power Entrepreneurs.

A long time ago, we lost lives of more than 3 million people and tons of budget because of the World War Ⅱ: one of the main reasons to have gone into war was to assure the energy resource route. Even after 70 years passed, the self-sufficiency ratio in the energy supply is only around 7%. Over a trillion JPY has been put into a budget for developing the energy supply, but the ideal situation is still far away from our current position. Renewable energy costs more than the primary energy resources, but in the long run, the merit of the renewable energy easily outweighs the cost of the oil, coal, and other primary energy resources. For our society, for the earth, and for our next generation, the renewable energy and the solar power needs to be developed and spread much more, and to do that, we need your support and understanding. Thank you.

Our Philosophy

We aim at the growth of the nation and the world through the development of the renewable energy market and local communities. More specifically, we try to spread the importance and merit of the renewable energy, to make sure all the renewable energy system owners manage their own power plants safely and well, and to gather the owner’s voices to assure the steady managements and business as a key player of infrastructure.

Our Info

Activity Details
  • Publishing the opinion regarding solar power
  • Holding seminar, report and spread tje knowledge of solar power
  • Researching and making statistics regarding renewable energy
  • Gathering the information regarding solar power
  • Sharing the entrepreneurship information regarding solar power


November 21, 2018

Admission Criteria
  • PV Plants Owner
  • Contractor
  • Maker
  • Other kinds of business groups regarding solar power

Type of Members

  • Official Membership
  • PV Owner Membership
  • Corporation Membership
  • Sponsor Membership

Org Info

  • Name: Alliance for Solar Power Entrepreneurs (ASPEn)
  • President: Hirokazu Taniguchi
  • Number of employee: 1
  • Office: 1-6-13, Kyobashi, Chuo-ku, 104-0031, Tokyo.
  • TEL: 03-4521-0404
  • FAX: 03-4521-0407
  • EMAIL: info.pv@aspen.or.jp