Acquisition of the 50,500-kW Solar Project “Central 40” in pre-construction phase in California, U.S. ‐The third solar power plant in our U.S. solar power generation portfolio‐

Solar Frontier Americas Inc., a consolidated subsidiary of Idemitsu Kosan Co.,Ltd. (Head Office: Chiyoda-ku, Tokyo; Representative Director and CEO: Shunichi Kito; hereinafter “Idemitsu”), purchased a megasolar project in the State of California, U.S. (Project name: Central 40; Power generation scale: 50,500 kWp*1; Commercial operation scheduled to start in 2020), currently in its pre-construction phase, from CS Solar (Head Office: the U.S.)*2.

*1 Power generation scale
kWp (kilowatt peak) represents the maximum power of DC output.
*2 Capital composition
Samsung Solar Energy 60%
Coldwell Solar Inc. 40%

This project is our third power plant development and operation business in the United States following two projects in California (Project name: Mustang II; Power generation scale: 210,000 kWp), announced in December 19, 2018, and in Colorado (Project name: Pioneer; Power generation scale: 100,000 kWp), announced in September 10, 2019. Idemitsu Kosan invested in Solar Frontier Americas through our wholly-owned subsidiary RS Renewables K.K. for the acquisition of this project.

The State of California has one of the most developed renewable energy markets in the U.S., including solar power generation. As of 2018, the state’s ratio of renewable energy, including solar, accounts for 34% of all electric power consumed in California. The state has already passed a law to achieve 100% renewable power by 2045, further increasing the growth in demand for solar power.

Solar Frontier Americas takes over the project in its pre-construction stage from CS Solar and will construct the solar power plant.

Image picture:
Megasolar power plant completed in 2017 by Solar Frontier Americas

Project Overview

Project name
Central 40
Power generation scale
Stanislaus County, California
Start of commercial operation
2020 (planned)

Amid the expanding global demand for power, solar power and other renewable energy sources are expected to take on a prominent role in resolving power generation demands. Idemitsu Kosan will continue to engage in the renewable energy generation plant development business in North America and Asia, where demand continues to increase.


Idemitsu Kosan’s overseas solar power generation projects in the U.S.

Project name State Power generation capacity Start of commercial operation Business owner
Mustang Ⅱ California 210,000kWp Oct.-Dec. 2020 Solar Frontier Americas
Pioneer Colorado 100,000kWp Oct.-Dec. 2020 Solar Frontier Americas
Central 40 California 50,500kWp Oct.-Dec. 2020 Solar Frontier Americas
Total - 360,500kWp - -

For inquiries regarding this press release, please contact

Public Relations Department Public Relations Section (Ms. Takimoto)
Idemitsu Kosan Co.,Ltd.

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