In many temporary heating and cooling applications, like cold storage, power supply can be unstable and unpredictable – or simply scarce. To ensure cold chain integrity, operators will sometimes opt to use diesel-powered gensets as a back-up energy source. But now, thanks to advancement in battery technology, operators eager to reduce their carbon footprint can opt for a fully electric option.

Trane Rental Services have expanded their cold storage offering with battery packs compatible with it refrigerated containers. These battery packs are designed to ensure a stable power supply during outages or peak periods. The battery pack operates quietly, cleanly, and without CO2 emissions on-site.
The battery pack is also a viable solution when a fuel-powered generator is not possible due to legal or local restrictions.

Why opt for a battery pack?
Battery power provides assurance. It is also the contemporary solution for locations without a power supply. A battery can be used anywhere, without the disadvantages and placement restrictions that apply to a fuel-powered generator.

A battery pack can also be used in combination with a fuel-powered genset; These hybrid generators can, for example, enable the use of a smaller, more efficient diesel generators, and run quieter operations during certain parts of the day.

Other applications of a battery pack include absorbing demand peaks and limiting current to below 16 amps. A battery pack can also be smart option to store energy when renewable power is being generated on-site, for example through solar panels.

Choices available for a wide range of applications
The battery pack consists of one, two, or three batteries, each with a capacity of 35 kWh. In total, a Trane battery pack can deliver up to 105 kWh and are approved for ambient temperatures between -20 °C and +45 °C. If more than 105 kWh capacity is required, contact your local Trane Rental Services team.

The battery pack can be equipped with telematics. Operators can view remotely the state of charge (SoC) of the battery. In case of an issue, an alarm signal is sent to the local Trane service team.

Integrating battery backs with the local electricity grid
When the battery pack is intended to be an emergency power back-up, it can be connected directly to the electricity grid. In this case, it can be connected in series or in parallel.

When connected in series, it is integrated into the fixed power supply circuit and is automatically charged. In the event of a power outage, the battery pack automatically takes over. The main advantage of this solution is that the machine never experiences a power interruption when the grid power fails. The trade-off is a minor power loss of up to 2 percent.

When connected in parallel, the battery is not directly connected to the machine. Instead, an ATS switch (automatic transfer switch) ensures the switch to the battery when the main power fails. The machine will then need to restart. With a parallel connection, there is no power loss. However, the battery pack will reauire its own power supply to remain charged.

Want to find out more or obtain help selecting the right power supply option for your cold storage operations? Contact your Trane Rental Services team today

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