Epiroc’s electrified mining fleets: grid integration lessons for mine power engineers
Reviewed by Tom Sullivan
First reported on International Mining – News
30 Second Briefing
Epiroc is analysing how electric surface drill rigs interact with weak and remote mine grids, focusing on load profiles, start-up currents and grid contingencies that can destabilise existing 11–33 kV distribution systems. The company is testing smart power management strategies such as ramped starts, active power factor correction and local energy storage to smooth high transient loads from large electric drills. For mine planners and electrical engineers, the work points to earlier integration of grid studies with fleet selection and potential use of hybrid on-site generation to avoid costly grid reinforcements.
Technical Brief
- Focus is on remote, weak mine grids where existing infrastructure was sized for diesel-powered equipment.
- Grid contingencies considered include single-line faults, feeder trips and voltage dips during concurrent large starts.
- Analysis extends beyond steady-state load to transient behaviour during drilling cycles and boom movements.
- Epiroc is examining how lack of grid redundancy constrains drill deployment schedules and simultaneous operations.
- Work aims to define grid connection requirements for new rigs so mines can specify upstream equipment correctly.
- Findings are expected to inform mine power system design standards and procurement specifications for future mining projects.
Our Take
In our database of 1,110 mining stories, Epiroc appears frequently in automation and electrification pieces, and the recent sale of fully electric Pit Viper 351 E rigs to Mesabi Metallics signals that grid and power-integration questions are now moving from underground to large open-pit fleets as well.
The upcoming unveiling of Epiroc’s underground drilling safety and automation products at PDAC 2026 suggests the company is positioning its electrification push as part of a broader ‘system’ offer that couples power solutions with safety and autonomous control, rather than selling standalone battery equipment.
Exploration being one of Epiroc’s fastest-growing business lines in 2025, as noted in a related article, means any solutions to grid constraints will likely need to scale from early-stage, generator-heavy exploration camps through to fully electrified production mines, influencing how OEMs design modular power and charging packages.
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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