Elmech (Pty) Ltd · George, Western Cape, South Africa

Company profile

Engineering reliable electric refrigeration systems for African fleets.

Elmech combines electrical engineering, refrigeration integration, and telemetry software to deliver complete eTRU systems with measurable operating impact.

Core focus

What we build and support.

System integration

Battery bank, inverter, MPPT, VFD, and refrigeration hardware commissioned as one coherent platform.

Fleet telemetry

Cloud portal with energy flow, unit behaviour, cargo temperature trends, and operational event history.

Performance reporting

Diesel displacement and cost-impact reporting designed for operator teams and stakeholder reporting.

Where it started — 2024

From a workbench to a working unit.

The eTRU began as a simple question on a workbench: could stored electrical energy run a refrigeration system reliably enough to stand in for a diesel transport refrigeration unit? In 2024 we set out to answer it — first with a bench prototype, then with the first unit on a trailer.

01 · The bench prototype

Proving the idea before building the truck.

We started small and deliberately. A LiFePO₄ battery bank, an inverter, and a standard cooling unit were wired together on a bench so we could measure how the system behaved under real load — energy draw, run time, and stability — without committing to a full vehicle build.

This early rig is where the core architecture of the eTRU was validated: battery, power electronics, and refrigeration working together as one coherent electric standby system.

The first Elmech eTRU bench prototype — a LiFePO₄ battery, an inverter stacked above it, and a cooling unit, wired together on a workshop bench to validate the electric standby concept.
The 2024 bench prototype — battery, inverter, and cooling unit tested as one system before any vehicle integration.
02 · The first unit

The concept becomes a trailer.

With the bench results in hand, the next step was a real, self-contained unit. The first eTRU trailer was built and fitted out in the workshop — taking the proven battery, inverter, and refrigeration architecture and packaging it into a mobile body that could be tested on the road.

It is the direct ancestor of every eTRU we deploy today: the same engineering-first approach, now scaled into complete systems with fleet telemetry and performance reporting.

The first Elmech eTRU trailer in the workshop, finished in a blue camouflage wrap — the first self-contained electric refrigeration unit built from the bench prototype.
The first eTRU trailer, built in our workshop — the bench concept packaged into a self-contained, road-testable unit.

Typical engagement

Project lifecycle.

Deployment and onboarding

  • Site and vehicle technical assessment
  • Hardware integration and commissioning
  • Portal setup and stream verification

Operations and optimisation

  • Monitoring and alert tuning
  • Savings model review by period
  • Remote support and system updates

Next step

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