Omexom’s self-contained solar solution for remote workspaces
In a bold step toward sustainable innovation, Omexom New Zealand has built a new solar-powered, self-contained site office, redefining how we think about mobile infrastructure. Designed for versatility and off-grid functionality, this transportable unit harnesses the power of the sun and repurposed technology to deliver a fully operational workspace[JN1] to a site, anywhere anytime.
At the heart of this solution are six high-efficiency solar panels mounted on the container’s roof. These panels feed energy into a bank of decommissioned substation batteries, giving new life to retired assets while significantly reducing environmental impact[JN2] . The container has been used at two sites already and scheduled to head down to the South Island for another project.
Inside, the container is a model of thoughtful design and functionality. It features:
- Ceiling-mounted LED lighting for energy-efficient illumination
- A dedicated office space equipped with desks, power outlets, and wifi
- A lunchroom complete with a microwave, sink, and essential utilities
- Climate control and ventilation systems to maintain comfort in all weather conditions
- Noise and air pollution reduced or eliminated
Fossil fuel generators have often been used to power site offices. Such generators use about five litres of diesel every day for a 10-hour workday. Recently at a site, the solar container was operational for over one month and 19 days (about 30 working days in total), for which a diesel generator would have consumed 150 liters of diesel fuel. Using the New Zealand emissions factor for diesel (0.745 kg CO₂ per litre), this equates to:
150 litres × 0.745 kg CO₂ = 111.75 kg of CO₂ emissions avoided.
The solar container eliminates noise, air pollution, and fuel transport linked to diesel generators, improving staff health and reducing environmental impact. It avoids disturbing local fauna and lowers emissions and spill risks. Most importantly, it cuts costs by removing the need to hire office containers and generators. This initiative shows how smart investment and innovation can deliver real sustainability gains.
It’s one of many ways Omexom supports the energy transition, reduces its carbon footprint, and passes savings on to clients. Thanks to VINCI’s Environment and Innovation Challenge award funding, we were able to transition from a pilot-scale solar chariot to a full-scale solar container solution, setting a new benchmark for environmentally responsible practices in remote infrastructure projects.