- About ASPEn -

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. 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.


  • 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
  • to gather the owner’s voices to assure the steady managements and business as a key player of infrastructure.


Hirokazu Taniguchi - President -

Born in 1977. CEO at a&vein Inc. President at Solar Power Village. After knowing the truth of the cause of war: energy resources, he became interested in Solar Power. Acquired the Master degree from Niigata University, MsC Natural Science, he proceeded into the career as the environmental consultant, and in 2013 changed his career to the solar power plants development. While planning more than 100 power plants, he established the unofficial group called ‘Solar Power Village’ which now has more than 1,900 members and 11 branches in Japan. In 2014, he established a&vein Inc. Working as a consultant regarding the solar power, he looks into the oversee’s market and visited Iceland, Germany, UAE, and China, and he introduces the leading countries’ market system of the renewable energy to people and plans the foreign tours as well.

Takeshi Magami - Executive Director -

Born in 1983. CEO at Chiba Ecological Energy Inc., CEO at Eco My Farm. President at Promotion Federation of Solar Sharing. Acquired Doctor in Public Research from Chiba University with the Capstone on Renewable Energy Policy in local governments which was the first case for Doctor program in Japan. His professions are energy policy, public policy, local government policy, and agricultural policy. On Oct 2012, established Chiba Ecological Energy Co. as a start-up from Chiba University, he started working on the local revitalization through renewable energy such as solar power, small hydroelectric power, and biomass. Since 2013, he started working on solar sharing which is a system of farming under the solar panels, and he has consulted more than 200 cases of solar sharing in Japan. On April 2018, he became President at Promotion Federation of Solar Sharing, and since then, he has been visiting all the places in Japan for speech and seminar to spread the solar sharing.

Hiroyuki Otsuki - Securetary General -

Born in 1959. CEO at Plan Do Corporation. Secretary General at Japan PV Planner Association. Started his career at Inaba Denki Sangyo Co., LTD., for 25 years, he had worked for the electronic material sales. In 2005, he entered to Material Aid Co. and had worked as Senior Managing Director. At his age of 50, he established Plan Do Corporation, and as an advisor of companies, he has been working on Initial Training, Product Sales Scheme making, organizational reform, product reviews, and company management. Through them all, he has been involved in renewable energy and started thinking of contributing to spreading renewable energy. As a result, in 2011, he promoted the establishment of Akita Solar Power and Small Wind Power Association. In the same year, he promoted the conversion to incorporated association of Japan PV Planner Co., and from 2012, he has been working as Senior Managing Director at Japan PV Planner Association.

Tsuyoshi Yoshihara (Advisor Consultant at The Johnan Shinkin Bank)  - Advisor -

Born in 1955. Acquired BA in Economics at Keio University. Entered into The Johnan Shinkin Bank in 1977. In 1992, full-time Executive, in 1996, Executive Director, in 2010, Director at the same bank. Through his career at the bank, he conducted many organizational reforms and at his age of 60, he retired his position as Director and became Advisor. Since June 2017, he has been contributing to the bank as Advisor Consultant. He also has been working as an author of many journals, books, and other writing pieces such as “Japan’s Economic Reform through Zero Nuclear” in 2014, “No Nuclear Statement of The Johnan Shinyo Bank” in 2012, and “Power of The Shinyo Bank - Connect People, Protect Local” in 2012. (Shinyo Bank means Credit Union in Japan)

Taichiro Mio (Executive Vice President at Chuo Bussan Co.,LTD. ) - Advisor -

Born in 1972. Acquired BA in Economics at Kansai University, he entered into Kobe Steel, LTD. From 1998, he had worked as Accounting Manager at Shanghai Taihui Electrical Appliance Co., Ltd. for 5 years, and in 2003, he became Executive Vice President at Chuo Bussan. CEO at MECC Co. since 2013, CEO at ENEMAN Co since 2016, Accounting Manager at Zhongwu Precision Electrical Appliance ShanghaiCO., LTD. since 2018. Since 2013, he has been working on holding the event called “Nakatsugawa Solar Budokan” as Executive Committee Chairman.

Our Info

- Activity Details

  • Publishing the opinion regarding Solar Power
  • Seminar, Report and Spread of the knowledge regarding Solar Power
  • Research and Statistics-making regarding Solar Power
  • Gathering the information regarding Solar Power
  • Sharing the entrepreneurship information regarding Solar Power

- Establishment

November 21, 2018

- Admission Criteria

  • PV Plants Owner
  • Contractor
  • Maker
  • Other kinds of business groups regarding Solar Power

- Type of Members

  • Normal Membership
  • Public Membership
  • Corporation Membership
  • Sponsor Membership

- Association 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