Sustainability

NGK to Introduce Solar Power Generation Equipment with a Total Capacity of 40 MW at Manufacturing Sites in Japan and Overseas by Fiscal 2025
Contributing to the Realization of Carbon Neutrality by Cutting Annual CO2 Emissions by 22,000 Tons

November 24, 2022

NGK INSULATORS, LTD. (hereinafter “NGK”) has decided on a policy of introducing photovoltaic equipment (“PV”) with a total capacity of 40 MW at manufacturing sites in Japan and overseas by fiscal 2025. Consuming renewable energy generated in-house will contribute to the realization of carbon neutrality by cutting annual CO2 emissions by 22,000 tons.


The NGK Group aims to realize net zero CO2 emissions by 2050 through the NGK Group Environmental Vision formulated in April 2021. To achieve this goal, it has drawn up its Carbon Neutrality Strategic Roadmap which sets cutting emissions by 25% compared to fiscal 2013 levels by fiscal 2025 as an intermediate target. As one of its strategies for meeting this target, the Group is installing PV within the Group and working to procure renewable energy.

As part of PV installation efforts, a decision has been made to install PV at the Group’s main overseas manufacturing subsidiaries in Poland and Thailand. NGK CERAMICS POLSKA SP. Z O.O. will install large-scale PV with a total capacity of 15.1 MW on the roof of the buildings and on land at its first factory (Gliwice, Silesia Province), as well as on land neighboring its second factory (Dąbrowa Górnicza, Silesia Province). It is anticipated that these will produce an annual output of 15,240 MWh, which will reduce annual CO2 emissions by an estimated 10,000 tons in fiscal 2024, the first full year after the installation. NGK CERAMICS (THAILAND) CO., LTD. (Samutprakarn Province) will install large-scale PV with a total capacity of 4.25 MW on the rooftops of its buildings, which is expected to produce an annual output of 5,560 MWh. Operation is due to start in fiscal 2023 and it will reduce annual CO2 emissions by an estimated 2,630 tons. The Group’s plan is to switch all energy consumed by overseas manufacturing sites to renewable energy by fiscal 2025, including by actively installing PV.


In addition to efforts for reducing CO2 emissions currently underway, such as installing PV, acquiring Renewable Energy Certificates (REC), and introducing carbon-neutral city gas, the Group is also launching initiatives including developing technology for manufacturing ceramics using clean energy sources that do not emit CO2, such as hydrogen and ammonia. To achieve net zero CO2 emissions by 2050, NGK will advance various initiatives in regions around the world, including the further installation of PV within the Group and the effective use of renewable energy through storage using NAS batteries, to contribute to the realization of a carbon neutral society.

PV Installation Roadmap

Launch Year 2022 2023 2024 2025
NGK non-consolidated Tajimi 2,600
Nagoya 320
Ishikawa 2,600 *1Komaki 1,000
Group companies in Japan *1NGK CERAMIC DEVICE CO., LTD. 680 *1NGK OKHOTSK, LTD. 1,400
Overseas Group companies China 2,400
Poland 120
Thailand 4,250
*1Belgium 2,730
Poland 15,100 *1Mexico 5,940
  • *1Under planning
  • *2Figures shown in the table are the PV panel capacity (unit: kilowatts)
    1,000 kW = 1MW
NGK CERAMICS POLSKA SP. Z O.O. first factory (scheduled start of PV operation: June 2024)
NGK CERAMICS POLSKA SP. Z O.O. first factory (scheduled start of PV operation: June 2024)
NGK CERAMICS POLSKA SP. Z O.O. second factory (scheduled start of PV operation: June 2024)
NGK CERAMICS POLSKA SP. Z O.O. second factory (scheduled start of PV operation: June 2024)
NGK CERAMICS (THAILAND) CO., LTD. (scheduled start of PV operation: July 2023)
NGK CERAMICS (THAILAND) CO., LTD. (scheduled start of PV operation: July 2023)

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