Mapleview Energy has entered into a collaboration with MacLean Engineering, a leading manufacturer of battery electric vehicles (BEVs) for underground mining operations. The partnership creates a pathway for retired industrial BEV batteries to be diverted from waste streams and repurposed for second-life energy storage applications.
Industrial-scale battery supply
MacLean Engineering designs and manufactures a range of battery electric mining equipment, including bolters, shotcrete sprayers, scissor lifts, and utility vehicles used in underground mining operations across Canada and globally. These vehicles operate in demanding environments and use large-format lithium-ion battery packs that are significantly bigger than those found in passenger EVs.
When these battery packs reach the end of their useful life in mining applications, they still retain substantial energy storage capacity. Until now, there has been limited infrastructure in place to capture this remaining value. Most retired industrial batteries face either costly recycling processes or uncertain disposal pathways.
How the partnership works
Under this collaboration, Mapleview Energy will receive retired battery packs from MacLean Engineering's fleet and service operations. Each battery undergoes our standard testing, grading, and assessment process to determine its suitability for second-life applications:
- Incoming assessment: Each pack is catalogued and undergoes initial safety screening and visual inspection.
- Module-level testing: Packs are disassembled to the module level and each module is tested for capacity, internal resistance, and self-discharge rate.
- Grading: Modules are graded based on their remaining capacity and health metrics, then matched into groups with similar performance characteristics.
- Integration: Graded modules are integrated into Mapleview Energy's BESS architecture with our proprietary battery management system.
Why mining batteries are well-suited for second-life storage
Industrial BEV batteries from mining applications have several characteristics that make them well-suited for repurposing into stationary energy storage:
- Large capacity: Mining BEV packs are significantly larger than passenger EV batteries, meaning fewer units are needed to build a storage system of a given capacity.
- Robust construction: These batteries are built to withstand the vibration, dust, and temperature extremes of underground mining, making them durable in stationary applications.
- Documented service history: Fleet-operated vehicles typically have better maintenance and usage records than consumer vehicles, making it easier to assess remaining battery health.
Building the supply chain for second-life batteries
This partnership with MacLean Engineering is part of Mapleview Energy's broader strategy to build reliable supply channels for retired batteries. As electrification accelerates across mining, transportation, and other industrial sectors, the volume of batteries reaching end-of-first-life will grow significantly. Establishing these supply relationships now positions Mapleview Energy to meet the growing demand for cost-effective energy storage solutions.