Nippon Telegraph & Telephone (NTT) is a leading telecommunications company based in Japan. The company operates in the wireline telecommunications sector and provides a wide range of services such as fixed-line, mobile, and internet services. NTT is also involved in research and development of new technologies and solutions to improve the quality of its services.

NTT is committed to decarbonisation and reducing its carbon footprint. The company has set a target to reduce its greenhouse gas emissions by 30% by 2030 compared to its 2015 levels. To achieve this target, NTT has implemented various measures such as energy-efficient technologies, renewable energy, and corporate energy management.

One of the key initiatives taken by NTT towards decarbonisation is the implementation of renewable energy sources. The company has set a target to increase its renewable energy usage to 50% by 2030. NTT has already installed solar panels at its data centers and office buildings to generate renewable energy. The company is also exploring other renewable energy sources such as wind and hydro power.

NTT is also involved in corporate power purchase agreements (PPAs) to support the development of renewable energy projects. In 2019, NTT signed a PPA with a solar power plant in Japan to purchase renewable energy for its data centers. The PPA will provide NTT with a stable supply of renewable energy and support the development of renewable energy projects in Japan.

Corporate energy management is another important aspect of NTT's decarbonisation strategy. The company has implemented various measures to improve energy efficiency and reduce energy consumption. NTT has introduced energy-efficient technologies such as LED lighting, air conditioning systems, and server virtualization to reduce its energy consumption. The company has also implemented a smart energy management system to monitor and control energy usage in its facilities.

NTT is also involved in corporate energy management through the implementation of energy-saving measures in its supply chain. The company has introduced a green procurement policy to encourage its suppliers to adopt sustainable practices and reduce their carbon footprint.

In addition to its decarbonisation efforts, NTT is also committed to corporate social responsibility (CSR) and sustainability. The company has set a target to achieve zero waste to landfill by 2030 and has implemented various waste reduction and recycling measures. NTT is also involved in community development initiatives such as disaster relief and education programs.

Overall, NTT is a leading telecommunications company in Japan that is committed to decarbonisation and sustainability. The company's focus on renewable energy, corporate energy management, and CSR initiatives demonstrates its commitment to reducing its environmental impact and contributing to a sustainable future.