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    Murphy’s zero emissions excavator debut: performance insights for project engineers

    May 18, 2026|

    Reviewed by Joe Ashwell

    Murphy’s zero emissions excavator debut: performance insights for project engineers

    First reported on The Construction Index

    30 Second Briefing

    Murphy has deployed a Sany SY215E electric excavator for United Utilities at the Davyhulme wastewater treatment works, its first use on a phosphorus‑reduction facility. The 21‑tonne class machine uses a cobalt‑free CATL Lithium Iron Phosphate battery, delivering up to eight hours of operation with roughly one hour of charging, enabling full‑shift use via overnight charging and cutting on-site noise. Performance is being benchmarked alongside diesel excavators during piling works to inform wider roll‑out of electric plant across the Davyhulme scheme.

    Technical Brief

    • Comparison with diesel excavators is focused on fuel and operational efficiency across the wider Davyhulme scheme.
    • Lessons from this trial are intended to support staged expansion of electric plant across future Murphy projects.

    Our Take

    Murphy’s use of a zero‑emissions excavator at United Utilities’ Davyhulme site fits a pattern in our database where Murphy is also piloting low‑carbon materials, such as Ecocem ACT concrete on the Transpennine Route Upgrade, signalling a broader decarbonisation push across both plant and permanent works.

    Greater Manchester wastewater schemes like Davyhulme increasingly face phosphorus discharge limits, so deploying battery‑electric kit with a one‑hour charge time helps United Utilities cut on‑site combustion emissions while it invests in phosphorus removal and advanced treatment processes.

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    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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