WHC Kubota electric retrofit: deployment and site-planning notes for engineers
Reviewed by Joe Ashwell

First reported on The Construction Index
30 Second Briefing
WHC Hire Services in the West Midlands has become the first UK firm to offer an electric Kubota mini excavator by converting a conventional diesel unit using its in-house Requip Electric Retrofit system. The retrofit replaces the original engine with a battery-electric powertrain, allowing contractors to use familiar Kubota compact excavators on zero-tailpipe-emission sites and in low-noise, enclosed or urban environments without waiting for OEM electric models.
Technical Brief
- Retrofit strategy allows contractors to keep existing attachment inventories fully compatible with the electrified base machine.
- For plant owners, retrofitting legacy fleets offers an alternative decarbonisation path to wholesale OEM replacement.
Our Take
Among the 109 Product/Sustainability-tagged pieces in our database, very few focus on UK-based plant-hire firms, so WHC Hire Services’ Kubota retrofit signals that decarbonisation is now filtering into the smaller contractor and rental end of the market, not just OEM launches.
Retrofit electrification of existing Kubota equipment in the United Kingdom can be a lower-capex route to emissions reduction for contractors than full fleet replacement, which is significant in a market where many civil and mining projects are still tendered on tight margins and short hire periods.
For UK infrastructure work, hire fleets like WHC’s are often the first to respond to client carbon requirements on public projects, so successful Kubota retrofits could quickly set informal benchmarks for what is considered ‘standard’ low-emission site equipment on future tenders.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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