Construction methods taking advantage of original topography wherever possible enable us to minimize the amount of mud, sand and felled trees that accompany the construction of our power plants.
As a result, we are engaged in efforts to minimize the amount of mud, sand and felled trees disposed of as much as possible.
As is the case with our solar power plants at Karumai West and East, Nasukarasuyama, Ozu and Hitoyoshi, when constructing on the slopes of mountains, we utilize the existing topography as much as possible, and reduce the amount of earthworks—aside from the creation of retention basins—to the greatest possible extent.
We reuse the soil, sand and debris generated by earthworks in constructing small dams or weirs for retention basins (adopting the double-wall method) and for the basin walls (BLN construction method).

We are engaged in initiatives to minimize the impact of the construction of solar power plants on local ecosystems.
Various conservation activities are carried out before the construction of each power plant, including the transplanting of rare plants (listed in the Red Data Book of each prefecture) from the power plant site to off-site forests.
At the Nasu Shiobara Solar Power Plant, we held a monthly Natural Environment Committee meeting for a period of one-year prior to development work, in consideration of the possibility of goshawk nesting sites.
Before commencing construction work, we proceeded with the project under the guidance of the prefectural government while receiving advice on the conservation of wildlife and rare species from specialists and experts such as the Tochigi branch of the Wild Bird Society of Japan (WBSJ) and academic researchers.
To protect goshawks, we are working to conserve and protect the local ecosystem by starting construction work after the nesting season and installing snake and lizard houses on the site.
At Yokkaichi Solar Power Plant, together with experts, we installed a biotope adjacent to the power plant to protect rare species that inhabit the area.
We work with people in the local community to transplant plants and maintain the ecosystem.

Through local community dialogues, we listen to the requests of local people and construct safe and secure power plants.
In the construction and operation of our power plants, we commission local companies to perform work, contributing to the creation of employment opportunities in the local community and the revitalization of local economies.

We also contribute to children’s environmental studies using our power plants.At Karumai West and East Solar Power Plants, we cooperated in the installation of an observation facility called Millet Park Solar House.
We provide opportunities for local junior high and high school students to learn about the environment.
Futtsu Solar Power Plant also accepts social studies tours.
Futtsu Solar Power Plant is registered as a member of the Chiba Environmental Learning Support Team, which supports environmental studies at schools and community groups in Chiba Prefecture. The plant utilizes its adjacent observation deck and exhibition panels to conduct study classes on renewable energy while experiencing the vastness of its 40MW solar power plant facilities.
By sponsoring and participating in events such as festivals and marathons in local communities in the vicinity of each power plant, we are also deepening ties with local residents.