Sustainable Energy Initiatives
Energy Efficiency and Reduction of CO₂ Emissions
Rigaku group promotes its sustainability initiatives through an integrated framework that enables close collaboration from top management to frontline employees.
In July 2022, we first set up an internal organization for managing company-wide sustainability initiatives, including climate related issues. We submitted a response to CDP for the first time in July 2023 covering Rigaku's global CO₂ footprint, and in September 2023 we set an overall goal to reduce these CO₂ emissions by 50% (Scope 1 and Scope 2) by 2030 in line with the Japanese government’s national plan.
To achieve this target, we have been progressively transitioning to CO₂-free electricity plans powered by renewable energy since July 2024. In August 2025, we commenced operation of a solar power generation system at our Yamanashi Plant, one of Rigaku Group’s key manufacturing sites. As a result of these initiatives, Scope 2 emissions at the Yamanashi Plant were reduced to zero in FY2025. Overseas, we have begun partial use of solar power at our sites in Poland and the Czech Republic, and our German site switched to 100% renewable electricity starting in FY2026. In addition, one of our U.S. sites converted all lighting to LED, further reducing energy consumption.
We will keep working to reduce CO₂ emissions at our other production sites by increased use of renewable energy, by promoting energy-saving activities, and by various other measures.
CO₂ emissions from Rigaku group globally were 9.97k t-CO₂ in 2025, a 3.5% decrease compared to the last year. CO₂ emission intensity improved by 7.1%, to 106 t-CO₂ per 1 billion yen in revenue.
We have begun to calculated Scope 3 CO₂ emissions in 2023 to ensure accountability of emissions from our whole supply chain, and to identify further opportunities for cost savings and emission reductions.
CO₂ emissions reduction target
Reduce the Scope1 and Scope2 CO₂ emissions by 50% by 2030 compared to the base year (2021)
Rigaku group(Scope1,Scope2)CO₂ emissions
CO₂ emissions
CO₂ emissions intensity
(kt-CO₂)
(t-CO₂/1B JPY revenue)
reduce
by
50％
Rigaku group CO₂ emissions in
2025 regional breakdown
Rigaku group (Scope1, Scope2)
CO₂ emissions
| Year | Scope1 | Scope2 | CO₂ Emissions （ktCO₂e） |
CO₂ Emissions Intensity (t-CO₂/1B JPY revenue) |
|---|---|---|---|---|
| 2021 [base year] |
0.85 | 8.71 | 9.56 | 179 |
| 2022 | 0.99 | 9.29 | 10.3 | 164 |
| 2023 | 1.01 | 9.77 | 10.8 | 135 |
| 2024 | 0.98 | 9.35 | 10.3 | 114 |
| 2025 | 0.98 | 8.99 | 9.97 | 106 |
Third-Party Assurance
To enhance the reliability of our Scope 1 and Scope 2 emissions data, we have obtained third-party assurance from Sustainability Accounting Co., Ltd. since FY2025.
Initiatives we take part in
Rigaku group has been submitting responses to the CDP (formerly Carbon Disclosure Project), the international environmental NGO, since 2023. We endorse the CDP's mission that "We want to see a thriving economy that works for people and planet in the long term" and will proactively disclose information in line with this mission.
We committed to “reduce the Scope1 and Scope2 CO₂ emissions by 50% by 2030 compared to the base year (2021)” and “achieve carbon neutrality by 2050”. We strongly support the Japan Climate Initiative (JCI) messages and make serious efforts toward the realization of a decarbonized society.
