We work to reduce environmental impact through our business activities.

Preventions of Global Warming

Renewable energy

Based on the Paris Agreement adopted at the 21st Conference of the Parties to the United Nations Framework Convention on Climate Change (COP21), Japan is aiming to reduce greenhouse gases by 26% by 2030 (compared to 2013). In order to achieve this goal, the public and private sectors are working together to popularize renewable energy and to make it a mainstay power source.
In recent years, the market for offshore wind power, among renewable energies, has rapidly become active both in Japan and overseas.
In 2018, we established a specialized organization for offshore wind power generation. In order to meet the high demand for undersea ground surveys in the market, we made capital investment in new facilities to increase the number of survey scaffolds. We also developed new undersea survey technology to provide efficient and low-cost survey services on seas with severe weather conditions.
The Group provides a variety of specialized services essential for offshore wind power projects, including environmental assessments, risk calculations, feasibility studies, and seismic investigations. By coordinating these services in a one-stop manner, we are contributing to the smooth commercialization of offshore wind power projects and the acceleration of the energy mix.

Scaffolding for seabed examinations (steal turret)

Geological structure examination method using seabed seismometers

Efforts for Energy Conservation

NS Environment Corporation is certified by the Ministry of the Environment as an organization specializing in energy conservation audits, and it provides CO2 reduction potential audits to companies.
In the CO2 reduction potential audit, qualified energy managers and others investigate and analyze in detail the energy usage of private enterprises' equipment and facilities and provide necessary consulting services to improve operations and upgrade equipment/facilities, thereby contributing to the reduction of utility costs and CO2 of customers.

Environmental conservation/restoration technology

OYO Group is working on biodiversity issues in local communities through cutting-edge environmental conservation and restoration technologies centered on group companies such as OYO Bionomical Engineering Institute and NS Environment Corporation.

WET test method

The WET (Whole Effluent Toxicity) test is a new method to manage drainage by using biological response, and it evaluates the safety of wastewater in a comprehensive manner by directly measuring the impact of wastewater on ecosystems caused by business activities of companies. It has already been generally used in Western countries, and it is estimated that it will become widespread in Japan in line with the global trend for ESG aware investment. Our group supports the advanced environmental management efforts of customers by introducing this method promptly in Japan.

Environmental DNA Analysis

With the proliferation of non-native species, the habitats of endemic species have rapidly shrunk, and it is feared that this could impact environmental change in water and the fisheries industry. Non-native species often have strong fecundity, and eradicating them comes at a high cost. OYO Corporation collects the water of rivers and lakes, and extracts the DNA of organisms living in the water to rapidly investigate the number and species of organisms living in the area through environmental DNA analysis. Through this, we are researching new management methods for water environments together with the National Research and Development Agency Public Works Research Institute.

Researching greening technology for arid land

The Republic of Uzbekistan is a flat land in which most of its land is desertified. In order to prevent further desertification and environmental pollution caused by irrigation, it is necessary to regenerate forests without irrigation. We are conducting joint research with Tashkent University of Agriculture in Uzbekistan to establish a new greening technology using the nursery block method*.

* Nursing block:
A silviculture method that guides the taproots of seedlings deep below the ground, enabling efficient absorption of moisture while simultaneously helping the seedlings take strong root in the ground. It is anticipated as a method to prevent landslides and as a greening technology for deserts.