World Library  
Flag as Inappropriate
Email this Article

Solar power in Japan

Article Id: WHEBN0019803499
Reproduction Date:

Title: Solar power in Japan  
Author: World Heritage Encyclopedia
Language: English
Subject: Growth of photovoltaics, List of monitored photovoltaic power stations, Economy of Japan, Photovoltaic system, Solar power in Thailand
Collection: Electric Power in Asia, Solar Power in Japan
Publisher: World Heritage Encyclopedia

Solar power in Japan

Price of PV modules (yen/Wp) in Japan
PV cell production and shipment (GWp) in Japan: Total (orange), Export (green), and Domestic (blue)

Solar power in Japan has been expanding since the late 1990s. The country is a leading manufacturer of solar panels and ranks 4th in the world for cumulative solar PV capacity installed, with most of it grid connected.[1] The insolation is good at about 4.3 to 4.8 kWh/(m²·day). Japan is the world's fourth largest energy consumer, making solar power an important national project.[2]

Japan was the world's 2nd largest market for solar power in 2013, adding a record 6.9 GW of capacity. 2014 installations are expected to be even larger, potentially up to 11.9 GW.[3][4]

By the end of 2013, Japan had installed 13,600 MW of photovoltaics; enough to generate 13,600 GWh (1.4% of 2013's national electricity consumption).[5]

Japan will emerge as the largest solar power in the world in 2014 as China is losing its solar capacity target of 14 GW in 2014. Japan[6] is expected to add 10.3 GW to 11.9 GW of solar power in 2014.


  • Government action 1
    • Financial incentives 1.1
    • Targets 1.2
  • Companies 2
  • Notable projects 3
  • Statistics 4
    • Photovoltaics 4.1
  • See also 5
  • References 6
  • External links 7

Government action

Financial incentives

The Japanese government is seeking to expand solar power by enacting subsidies and a feed-in tariff (FIT). In December 2008, the Ministry of Economy, Trade and Industry announced a goal of 70% of new homes having solar power installed, and would be spending $145 million in the first quarter of 2009 to encourage home solar power.[7] The government enacted a feed-in tariff on November, 2009 that requires utilities to purchase excess solar power sent to the grid by homes and businesses and pay twice the standard electricity rate for that power.[8]

On June 18, 2012, a new feed-in tariff was approved, of 42 Yen/kWh, about 0.406 Euro/kWh or USD 0.534/kWh. The tariff covers the first ten years of excess generation for systems less than 10 kW, and generation for twenty years for systems over 10 kW. It became effective July 1, 2012.[9] In 2013, Japan is expected to install 5-9 GW of solar power (nameplate wattage).[10][11] In April 2013, the FIT was reduced to 37.8 Yen/kWh.[12] The FIT was further reduced to 32 Yen/kWh in April 2014.[13]


The government set solar PV targets in 2004 and revised them in 2009:[14]

  • 28 GW of solar PV capacity by 2020
  • 53 GW of solar PV capacity by 2030
  • 10% of total domestic primary energy demand met with solar PV by 2050


Solar companies of Japan include:

Notable projects

The Solar Ark, built in 2002, is one of the largest solar buildings in the world.

After the shift away from a nuclear power-dependent energy policy in the wake of the Fukushima nuclear accident,[15] the first three solar plants by TEPCO were completed in 2011 and 2012, the Ukishima Solar Power Plant, 7 MW, the Ogishima Solar Power Plant, 13 MW, and the Komekurayama Solar Power Plant, 10 MW. The output of all three can be monitored on the internet.[16]

341 MW of photovoltaics are planned for the island of Hokkaido, and a total of 1,800 MW of photovoltaics projects have been approved for Japan, as of October 2012.[17]

Two of the proposed projects are a 70 MW plant by Kyocera in Kagoshima and a 100 MW plant by Toshiba in Minami Soma, Fukushima Prefecture.[18][19]

A 77 MW photovoltaic power plant is planned for Tahara City, on the Atsumi Peninsula, and is expected to be completed in 2014.[20] A 200 MW plant is proposed for Tomakomai.[21]

It is expected that many new projects will be constructed, to take advantage of the new feed-in tariff.



Installed PV capacity (in MW)[22][23]
1992 19.0 n/a
1993 24.3 5.3
1994 31.2 6.9
1995 43.4 12.2
1996 59.6 16.2
1997 91.3 31.7
1998 133 41.7
1999 209 76
2000 330 121
2001 453 123
2002 637 184
2003 860 223
2004 1,132 272
2005 1,422 290
2006 1,709 287
2007 1,919 210
2008 2,144 225
2009 2,627 483
2010 3,618 991
2011 4,914 1,296
2012 6,632 1,718
2013 13,532 6,900

See also


  1. ^ "Cumulative Installed Solar Photovoltaics Capacity in Leading Countries and the World, 2000-2013". Earth Policy Institute. June 18, 2014. Retrieved 2014-09-03. 
  2. ^ "Solar Energy in Japan - Summary". GENI. Retrieved 7 May 2012. 
  3. ^ "Japan adds 4.58 GW of PV in eight months, FIT cuts of 10% mooted". PV Magazine. 4 March 2014. 
  4. ^ Sophie Vorrath (2014-08-12). "Japan challenges China to be world’s biggest solar market in 2014". RenewEconomy. Retrieved 2014-09-03. 
  5. ^ Hiroyuki Yamada & Osamu Ikki (2014-08-27). "National Survey Report of PV Power Applications in Japan - 2013". International Energy Agency. Retrieved 2014-09-03. 
  6. ^ Rajani Baburajan (2014-11-28). "Japan to displace China as largest solar market in 2014". GreentechLead. Retrieved 2014-11-30. 
  7. ^ Japan renews focus on solar power
  8. ^ Soto, Shigeru (2010-02-09). "Japan’s Solar Panel Sales Rise to Record on Subsidy (Update1)".  
  9. ^ Japan Approves Feed-in Tariffs
  10. ^ Japan To Become Land of Rising Solar
  11. ^ harlen, chico (4 June 2013). "In Japan, new policy spurs solar power boom". The Washington Post. Retrieved 5 June 2013. 
  12. ^ Japan’s High-Cost Renewable Energy Curbs Subsidy Impact
  13. ^ Chisaki Watanabe (March 2014). "Japan Cuts Subsidy for Solar Power, Boosts Offshore Wind". Bloomberg News. Retrieved 2014-04-02. 
  14. ^ Yamamoto, Masamichi and Osamu Ikki (2010-05-28). "National survey report of PV Power Applications in Japan 2009".  
  15. ^ UN cites solar potential as Japan scraps nuclear plan
  16. ^ Solar Power Plant Facility Overview
  17. ^ Mega solar power plants may be excessively concentrated in Hokkaido.
  18. ^ Now Toshiba says they’re building Japan’s ‘largest’ solar plant in Fukushima
  19. ^ Utility-scale solar plant for Fukushima
  20. ^ One of Japan's Largest Mega Solar Projects to be Built in Aichi
  21. ^ Japan to see a solar power boom
  22. ^ "National Survey Report of PV Power Applications in Japan - 2012 - Third Version". International Energy Agency. 2013-06-10. Retrieved 2014-04-13. 
  23. ^ "Global 2013 solar installs hit 37GW: EPIA". PV-Tech. 2014-03-06. Retrieved 2014-04-13. 

External links

  • Official website
  • Electrical Japan: Google Maps of Power Stations (Solar) (Japanese)
  • Solar Power Resources and News in the Asia-Pacific region, with focus page on Japan
  • Tepco real time monitor
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.