Solar plant development and investment
Site selection, regulatory analysis, environmental assessment, financing and construction supervision for ground-mounted, floating and rooftop plants.
About Chenya Energy
Marubeni's renewable energy platform in Taiwan
Chenya Energy Co., Ltd. is a wholly owned subsidiary of Japan's Marubeni Corporation and a key base for Marubeni's renewable energy operations across Asia.
Our role
Chenya develops, builds and operates utility-scale solar power plants (O&M), and provides green power sales and Corporate Power Purchase Agreement (CPPA) services to advance Taiwan's energy transition and accelerate the shift to a low-carbon society.
Since its founding in 2014, Chenya Energy has built ground-mounted, rooftop and floating solar projects, investing close to NT$10 billion. Installed capacity has reached 332 MW with annual generation exceeding 440 million kWh, providing Taiwan with a stable and traceable source of green power.
Vision and mission
Chenya Energy is built on the belief that sustainable governance requires both expertise and responsibility. Energy transition is not merely a technical upgrade — it is a commitment to the future.
Advance the adoption of renewable energy and long-term decarbonisation
Build high-quality, high-efficiency renewable energy assets
Deliver traceable, stable and trustworthy green power solutions for business
Work alongside communities, government and the industry chain to promote sustainable development
332 MW
Installed capacity
4.39 hundred M kWh
Annual generation
27 %
Wheeling market share
17 k tonnes
Annual CO₂ reduction
304 MW
Contracted capacity
6.37 hundred M kWh
Cumulative wheeled volume
Milestones
Blue marks Chenya Energy’s plant development and construction; orange marks Hikari Energy’s green power sales — from the most recent back to the start in 2014.
Chenya Energy｜Plant development & EPC Hikari Energy｜Green power sales
-
2026
Benchmark memory manufacturer
700 GWh contracted
Signed a 700 million kWh green power purchase agreement with a benchmark memory manufacturer.
-
2026
Xuejia energy storage site completed
Moving into energy storage while continuing to expand a diverse pipeline of solar developments.
-
2025
Expanding into biopharmaceuticals
304 MW contracted to date
Signed a long-term green power agreement in Taiwan with one of the world’s top three biopharmaceutical companies; cumulative contracted capacity reached 304 MW and wheeled volume 637 million kWh.
-
2024
Xuejia Phase II completed
Continuing the aquavoltaic model of Phase I and expanding floating solar in Tainan.
-
2024
Agreements with semiconductor and memory leaders
1,380 GWh contracted
Signed green power purchase agreements with Taiwan’s leading semiconductor manufacturer (1.2 billion kWh) and Winbond Electronics (180 million kWh).
-
2024
Hikari Energy founded
A power retail subsidiary extends the business from generation into green power sales and corporate power purchase agreements.
-
2023
Green power sales begin
260 GWh contracted
Signed green power purchase agreements with Far Eastern Group (140 million kWh) and a leading global semiconductor manufacturer (120 million kWh).
-
2022
Changbin Lunweidong III completed
67 MW
Completed and connected to the grid the same year — the third plant at the Changbin site.
-
2022
Owned capacity reaches 260 MW
260 MW owned capacity
Including Agongdian Reservoir, Xuejia Phase I, landfill sites, farms in Hsinchu and Changhua, and a covered sports court in southern Taiwan.
-
2020
Became Marubeni’s subsidiary in Taiwan
In April 2020 Chenya became a wholly owned Taiwan subsidiary of Marubeni Corporation.
-
2020
Changbin Lunweidong I and II completed
181 MWp
Chenya’s largest single site, establishing the technical foundation for floating solar development.
-
2019
Agongdian Reservoir plant completed
10 MW
Taiwan’s first large-scale floating solar plant — expanding green power without taking up land.
-
2014
Chenya Energy founded
Entering Taiwan’s solar power market.
Core services
Engineering, construction and O&M
In-house EPC and O&M teams handle system design, construction and grid connection, intelligent monitoring and predictive maintenance.
Green power trading and corporate PPAs
Long-term, stable green power products that help companies meet RE100 and ESG targets.
What sets us apart
Technology, resources, people and supply model together form a barrier that is hard to replicate.
Leadership in floating solar
Deep experience in water-surface projects, with proven wave and corrosion resistance and engineering integration.
Access to international resources
Backed by Marubeni's global energy network, applying international standards in risk control and engineering.
A localised professional team
Over a decade of experience in regulation, land coordination and project execution keeps projects on schedule and to specification.
A reliable green power supply model
Direct generation, on-demand delivery and transparent monitoring provide a traceable source of green power.
Interested in working together on green power?
Whether you want to buy green power, sell the electricity you generate, or discuss a site partnership, we would be glad to hear from you.