Construction Completes and Commercial Operation Begins on juwi Shizen Energy’s Largest Solar EPC Project of 41.6MW in Tochigi Prefecture


juwi Shizen Energy Inc. (“juwi Shizen Energy”) has completed construction of a large-scale solar power plant of 41.6MW (the Sonnedix Sano plant), an EPC (engineering, procurement, construction) project in Sano City, Tochigi Prefecture, and started its commercial operation on January 5th.

The development, financing, and construction of this power plant was managed by Sonnedix Japan, the Japanese operator partner for investments made by the worldwide electricity generation company, Sonnedix Group.  EPC of the plant was conducted by juwi Shizen Energy, and juwi Shizen Energy Operation will perform the O&M. The annual output is expected to be approximately 49,000MWh during its first full year of operation, equivalent to the annual electrical power use of approximately 11,000 households. This is the largest EPC project that juwi Shizen Energy has completed construction.

juwi Shizen Energy has completed the construction of power plants amounting to a total of 425megawatts of combined peak output and is currently constructing power plants amounting to a total of 298 megawatts of combined peak output. 

juwi Shizen Energy will continue to use the knowledge and experience it has accumulated through its global operations, and aim to contribute to the increased use of renewable energy and the construction of a sustainable society, both in Japan and overseas, by providing EPC solutions that meet the needs of the local areas in which the power plants are constructed.

Project Outline

Project Name

Sano city Tada machi solar PV plant


Sano city, Tochigi prefecture


juwi Shizen Energy Inc.


juwi Shizen Energy Inc. / juwi Shizen Energy Operation Inc.


41.6MWp (DC) /32MW (AC)

Estimated annual generated energy output

approx. 49,000 MWh/year

(equivalent to the annual electrical power use of

 11,000 households)

Start of construction

June 2018

Start of operation

January 2022

Picture of Solar Power Plant