Promotion of Zero-Emission Power Solutions for Expanding GX Construction Machinery Deployment
Bell Energy and Komatsu successfully demonstrated charging for battery-powered electric excavators using the mobile power vehicle 'MESTA Gen'. The solution enables efficient power supply to six GX-certified construction machinery models in various site conditions.
📋 Article Processing Timeline
- 📰 Published: May 25, 2026 at 19:00
- 🔍 Collected: May 25, 2026 at 10:31
- 🤖 AI Analyzed: May 25, 2026 at 21:30 (10h 58m after Collected)
## Bell Energy and Komatsu Expand Charging Demonstrations for Electric Construction Machinery
Bell Energy and Komatsu have conducted charging demonstrations for battery-powered electric hydraulic excavators using Bell Energy's mobile power supply vehicle, 'MESTA Gen.' Through this validation, the companies confirmed that MESTA Gen can charge six models of battery-powered electric hydraulic excavators certified by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) as 'GX Construction Machinery.'
### Challenges and Solutions in Electric Machinery Usage
Construction sites are increasingly adopting electric machinery to achieve carbon neutrality. While these machines offer emission-free operation and low noise, ensuring stable and flexible power sources at remote outdoor job sites has been a challenge.
Since December 2024, the two companies have been testing MESTA Gen with small electric excavators and confirmed its efficiency. In the latest demonstration, they successfully verified that the system can also charge medium-sized electric excavators (13-ton and 20-ton classes) without errors.
### Advantages of MESTA Gen
MESTA Gen is a zero-emission power vehicle based on the Nissan Leaf. It can be driven with a standard driver's license and performs power transport and charging without generating exhaust emissions or noise. This supports operations in sites with power constraints.
Moving forward, Bell Energy and Komatsu aim to accelerate the adoption of power supply solutions for electric construction machinery, strengthening their contribution to carbon neutrality at construction sites.
Bell Energy and Komatsu have conducted charging demonstrations for battery-powered electric hydraulic excavators using Bell Energy's mobile power supply vehicle, 'MESTA Gen.' Through this validation, the companies confirmed that MESTA Gen can charge six models of battery-powered electric hydraulic excavators certified by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) as 'GX Construction Machinery.'
### Challenges and Solutions in Electric Machinery Usage
Construction sites are increasingly adopting electric machinery to achieve carbon neutrality. While these machines offer emission-free operation and low noise, ensuring stable and flexible power sources at remote outdoor job sites has been a challenge.
Since December 2024, the two companies have been testing MESTA Gen with small electric excavators and confirmed its efficiency. In the latest demonstration, they successfully verified that the system can also charge medium-sized electric excavators (13-ton and 20-ton classes) without errors.
### Advantages of MESTA Gen
MESTA Gen is a zero-emission power vehicle based on the Nissan Leaf. It can be driven with a standard driver's license and performs power transport and charging without generating exhaust emissions or noise. This supports operations in sites with power constraints.
Moving forward, Bell Energy and Komatsu aim to accelerate the adoption of power supply solutions for electric construction machinery, strengthening their contribution to carbon neutrality at construction sites.
FAQ
ベルエナジーとコマツが実施した給電検証の目的は何ですか？
電源設備のない建設現場や作業場所の移動を伴う環境において、電動建機へ安定的かつ柔軟に給電する手段を確立し、GX建機の導入・運用を促進することを目的としています。
検証で使用された給電ソリューションは何ですか？
ベルエナジーの移動式給電車「MESTA Gen」です。日産リーフをベースとした特許技術によるゼロエミッション電源車で、普通自動車免許で運転可能です。
今回の検証で給電が可能と確認されたコマツの建機は何機種ですか？
バッテリー式電動油圧ショベルの計6機種です。小型（1トン未満～3トンクラス）に加え、今回の検証で中型（13トンおよび20トンクラス）への給電もエラーなく可能であることを実証しました。
電動建機の現場導入にはどのようなメリットと課題がありますか？
メリットは排出ガスゼロ、低騒音・低廃熱、エンジン車並みの掘削性能です。課題は現場での安定的な電源確保です。
今後の両社の計画は？
電動建機の現場運用拡大に向け、給電ソリューションの普及をさらに進め、実際の建設現場への導入拡大を図ります。