FANUC Headquarters New Building Awarded Highest “ZEB” Certification under BELS – Promoting Sustainable Architecture with Consideration for the Environment and People –

April 22, 2026
FANUC CORPORATION

The newly constructed Central Technical Center (hereinafter “the Central TC”) at the Headquarters campus of FANUC CORPORATION (hereinafter “FANUC”) has received “ZEB^*1” (Net Zero Energy Building) certification, the highest rating under Japan’s Building-Housing Energy-efficiency Labeling System (BELS)^*2. This marks the first time for FANUC to be awarded the top level in the four-tier BELS rating system, certifying through a third-party evaluation that the building achieves virtually zero annual primary energy consumption during operation^*3
*Please refer to the separate release for an overview of the Central TC.

In addition, the office building connected to the Main Building (Head Office Building) at Headquarters also received the “ZEB Oriented”^*1 certification.
As part of this series of facility developments, FANUC has actively pursued both “energy conservation” — through high-performance thermal insulation and the adoption of highly efficient equipment — and “energy generation,” through the installation of solar power generation systems. As a result, the Central TC has achieved a 100% reduction in its standard primary energy consumption^*3, while generating a 27% surplus of energy, which is utilized by other buildings at Headquarters. The office building has achieved a 41% reduction in standard primary energy consumption.

Facility Overview

FANUC will continue to promote initiatives in both “energy conservation” and renewable “energy generation” across its facilities, thereby reducing CO₂ emissions and contributing to the realization of carbon neutrality.

Notes

^*1 ZEB (Net Zero Energy Building): A building concept aimed at achieving a net-zero annual balance of primary energy consumption while maintaining a comfortable indoor environment. ZEB certification consists of four levels.
The highest level, ZEB (Full ZEB), is awarded to buildings that achieve a 50% reduction through energy conservation measures and a total reduction of 100% or more when combined with renewable energy generation.
ZEB Oriented certification is awarded to buildings (non-residential portions) with a total floor area of 10,000 m² or more that aim for a minimum 40% reduction in standard primary energy consumption through energy conservation measures.
^*2 Building-Housing Energy-efficiency Labeling System (BELS): A labeling system in which third-party organizations evaluate and certify the energy efficiency performance of new and existing buildings.
^*3 Standard Primary Energy Consumption: Energy consumption for air conditioning, mechanical ventilation, lighting, hot water supply, and elevators/escalators, as defined under Japan’s 2016 energy efficiency standards.