How a Containerized Power Plant Is Built

In Short

A containerized power plant is built as a power station delivered in shipping containers, with the generator sets and their supporting systems assembled and tested in a factory. It is connected on site far faster than a conventional plant, which is why data centers, mines, industry and utilities use it for standby, prime and bridging power.

A containerized power plant is a power station delivered in boxes: one or more generator sets in ISO containers, with the fuel, exhaust, cooling, switchgear and controls that make them a plant, built and tested in a factory and connected on site far faster than a conventional plant. Data centers, mines, industrial sites, islands and utilities use them for standby power, prime power and bridging power while a grid connection waits. This guide follows the plant from the enquiry to the first synchronisation.

Design: Fitting a Plant Into Containers

The design starts from the generator sets - make, model, rating - and the site: ambient, altitude, sound limit, emissions rules, fuel autonomy, the grid connection and the loads. Each set gets a container with the service space, the air path and the acoustic treatment the sound limit requires; the radiator stays on the set or goes to the roof or beside the container when the air inside would run too hot. The fuel system is laid out as belly tanks, day tanks and a bulk tank with transfer pumps and polishing; the exhaust gets silencers of the right grade and, where emissions limits ask for it, an SCR system with its urea tank.

The electrical design puts the generator breakers, the paralleling switchgear and the MCC for pumps, fans and heaters into their own container or into the end of the generator containers, with the control system that starts, synchronises and shares load between the sets. Drawings, calculations and a 3D model are issued for approval before steel is cut.

Build: Steel, Systems and Factory Tests

The containers are built as welded steel structures - new ISO containers or purpose-built frames with container corners - then lined, fitted with doors, louvres, silencers and cable trays, painted for the site's corrosion class and fitted with CSC plates where they travel as freight. The sets are installed on anti-vibration mounts, the fuel, exhaust, cooling and electrical systems are connected, and the container becomes a complete module.

Before shipment the plant is tested as it will run: each set under load bank through its own breaker, then the sets in parallel, the controls through their sequences, the fuel system and the alarms through their functions. The factory acceptance test is witnessed by the customer and recorded; the modules are then disconnected at the interfaces that were designed for it.

Transport, Installation and Commissioning

ISO modules travel by truck, rail and ship like any container. On site they stand on prepared foundations - concrete plinths or steel beams - and are connected: fuel lines, exhaust stacks, the cables between the generator containers and the switchgear, the earthing grid, the grid connection. Because the systems were tested in the factory, site work is mostly connection and checking.

Commissioning repeats the essential tests on site - load bank, synchronisation, load sharing, the protection settings against the grid operator's requirements - and ends with the documentation and the training of the operators. AXON designs and builds containerized power plants around generator sets of any make: the containers, fuel systems, exhaust and SCR, switchgear and MCC, load banks and controls, delivered as one tested package. Send the sets, the site and the loads, and the proposal shows the plant.

What a containerized power plant includes

Generator containers with ventilation, acoustic treatment and service access
Fuel system: belly or day tanks, bulk tank, transfer pumps, polishing
Exhaust silencers, stacks and SCR where emissions limits require it
Switchgear container: generator breakers, paralleling, MCC, controls
Load bank, fire detection, lighting, earthing
Factory acceptance test, transport, installation support, commissioning

What to send with an enquiry

Generator sets: make, model, rating and number, or the plant capacity
Duty: standby, prime, continuous, grid-parallel or island
Site ambient, altitude, corrosion class and sound limit
Emissions requirements and fuel autonomy
Grid connection voltage and the loads to be supplied
Site location, transport route and installation dates

Send an enquiry Send us files

Questions we are often asked

How long does a containerized power plant take?

Much less time than a conventional plant: the generator sets' delivery time usually sets the pace, and the containers, systems and switchgear are built in parallel. Site installation and commissioning are short because the plant arrives tested.

Can the plant run in parallel with the grid?

Yes, with paralleling switchgear and controls designed to the grid operator's connection rules - protection, synchronisation, power and reactive power control. Island operation and grid-parallel operation are both common.

Where do the radiators go?

On the set inside the container when the air path allows it, on the roof of the container, or beside it as remote radiators when the sound limit or the heat argues for it. The design decides per site.

Can the plant be moved later?

That is its point. ISO modules are disconnected at their interfaces, shipped and reconnected; a plant built for bridging power moves to the next site when the grid arrives.

Who supplies the generator sets?

The customer chooses the make; AXON builds the plant around it and works with the set maker's data for airflow, back pressure, fuel and electrical interfaces.