A 120-tonne truck with a 528 kWh battery pack, without proportionate charging infrastructure, is simply a stationary asset. So before choosing an electric machine, one question has to be answered: where does this fleet's energy come from during the hours between shifts?
Components of the solution
- On-site solar generation (PV) — sized to the site's irradiance and available area. At most mines area is not the constraint; distance to the point of use is.
- Battery energy storage (BESS) — to cover the charging peak. Without it, the instantaneous power needed to charge several machines at once forces the grid connection or the generator to run at an inefficient operating point.
- A diesel generator — as back-up, not as the primary source. Once the generator becomes the primary source, much of the economic logic of electrification disappears.
- An energy management system (EMS) — to schedule charging between shifts and keep loads from coinciding.
- Protection, switchgear and fleet charging infrastructure — cable routes, the substation and charge points at the operational standing area.
What this note does not promise
This page is a framework, not a design. The indicative figures quoted in the market for "energy containers" are examples only and do not replace a site-specific design. Actual PV capacity, BESS sizing and charging power must be calculated from that mine's own load profile: machine count, shift pattern, elevation change on the haul route and how much energy is recoverable on the descent.
One necessary clarification
An energy container is a product independent of the machine manufacturer. Without official documentation it must not be presented as a SINOTRUK-built product. What we offer is the coordination of the two tracks — the fleet on one side, the energy infrastructure on the other — not the sale of a single branded package.
Which mine is readiest to electrify
A site with meaningful elevation change on the haul route gains the most, because a substantial share of the energy is recovered on the descent. A site with a stable grid connection has already cleared the hard part. And a site running long shifts without charging infrastructure is, for now, closer to the range-extended variant than to full battery-electric — the path that electrifies a fleet gradually without holding the operation hostage to infrastructure.