SunPower, Total & ISE Group commission 27MW solar project in Japan

April 19, 2017
Facebook
Twitter
LinkedIn
Reddit
Email
The Nanao plant is jointly owned by ISE Group, which holds 50% interest, with Total and SunPower each holding a 25% interest. Source: Flickr/Caribb

French oil major Total has joined with SunPower and Japan’s ISE Group to commission a 27MW PV power plant in Nanao, on Honshu Island.

ISE Group has a 50% interest in the plant, with Total and SunPower holding 25% each. This is Total’s first ever PV venture in Japan.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Constructed on 25 hectares of land owned by ISE Group, the facility is now entirely connected to the electricity distribution grid and began supplying power through more than 80,000 high-efficiency SunPower PV modules.

The ground-mounted plant was brought online after just one year of construction which began in March 2016. It will now produce around 28GWh of clean energy annually; enough to serve thousands of Japanese households on the Island.

The Nanao solar plant was designed to meet national earthquake-resistant building standards to comply with the Japanese climate.

“We are committed to applying the same dedication to safety and security in our renewable energy projects,” said Hikonobu Ise, chairman of the ISE Group, who added that the plant is one of the largest in the Hokuriku region. 

“We are pleased to partner with Total, one of the world's leading energy companies, and SunPower, which possesses the world's most efficient solar panel technology. We hope that this project will further strengthen the friendship between Japan and France.”

“Total Solar is proud of the start-up of its first photovoltaic power plant in Japan,” said Julien Pouget, senior vice-president of Renewables at Total. “The start-up of the Nanao photovoltaic power plant is an important milestone in the history of Total in Japan, where we have been present for 60 years. Total is committed to assisting Japan in further diversifying its energy mix to ensure a supply of affordable and clean energy through our solar and liquefied natural gas activities.”

“The SunPower solar panels operating at the Nanao solar power plant maximize the power generated on site by producing 45% more energy in the same amount of space compared to conventional solar panels, and are recognized for long-term reliability and performance,” said SunPower vice president Shingo Tajiri.

16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2028 and beyond.

Read Next

April 22, 2026
BrightNight has acquired a 6GW portfolio of projects previously held under its joint venture with Canadian asset manager Cordelio Power.
April 22, 2026
A federal judge in Massachusetts has temporarily halted the Trump administration's restriction of solar and wind projects on US federal land.
April 22, 2026
US independent power producer Geronimo Power has begun commercial operations at its 270MW Blevins solar plant in Falls County, Texas.
Premium
April 22, 2026
The European Commission (EC) is reportedly “very resolved to take harsh steps” in its enforcement of cybersecurity laws in the solar energy sector.
April 21, 2026
ILOS Projects has upsized its structured credit facility to €450 million, as it targets more than 2GW of solar PV and BESS capacity across Europe by 2028. 
April 21, 2026
Sterling and Wilson Renewable Energy (SWREL) has secured a contract from Coal India (CIL) for an 875MW grid-connected solar project.

Upcoming Events

Media Partners, Solar Media Events
June 3, 2026
National Exhibition and Convention Center (Shanghai)
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland