Why Cold Storage Feels the Power Crunch First
Updated: Oct 28
Why Cold Storage Feels the Power Crunch First
PowerStack Microgrids™ | Who We Serve: Cold Storage and Logistics
A cold storage facility never gets a night off. The compressors run at 2 a.m. the same as at 2 p.m. The doors open, the trucks back in, and the temperature has to hold no matter what the grid is doing.
That makes cold storage one of the clearest examples of a simple truth: when a building’s business depends on power every minute of every day, power stops being a utility and becomes infrastructure.
Three pressures hitting at once
The bill. Electricity is typically the second-largest operating expense in a cold storage facility, after labor. Refrigeration loads are large and constant, and demand charges, the fees utilities set on a facility’s highest use in a billing period, can make up a large share of monthly operating expenses.
The risk. In most buildings, an outage is an inconvenience. In cold storage, it is product on the line: food, pharmaceuticals, and inventory that customers trusted the facility to protect. Resilience is not a feature. It is the service.
The growth. Operators are adding automation, blast freezing, and electric yard equipment, and new facilities are being built where the demand is, not where the grid has room. Each of those steps adds load. In many markets, the utility timeline for new capacity is longer than the business can wait.
Any one of these would be manageable. Together, they put cold storage at the front of the power crunch.
What cold storage already gets right
Cold storage has an advantage most buildings do not. The product inside the building holds its temperature. A well-sealed facility can ride through short interruptions without losing product, which gives an onsite power system room to work with.
That thermal mass works a little like a battery. A good power plan is designed around it, not in spite of it.
What a power plan for cold storage includes
There is no single answer, which is why we do not start with one. A facility’s plan is built from its load, its tariff, its site, and its growth plans. Most plans draw on some combination of:
Battery storage to shave the peaks that drive demand charges and to carry the facility through short outages.
Onsite generation sized for the refrigeration load, so the facility can keep running when the grid cannot.
Rooftop solar where the roof and the economics support it. Cold storage roofs are large, flat, and often a good fit.
Controls that manage all of it as one system, around the facility’s operating schedule rather than a manufacturer’s default settings.
The goal is the same three outcomes, every time: Speed to Power for new capacity, Stabilized Cost of Power that can be planned and financed, and Resiliency that protects what is inside the building.
Where to start
The best time to plan power for a cold storage facility is before the next expansion, the next lease, or the next site is committed. A few questions sharpen the conversation:
What does the facility’s load look like across a full year, not just on average?
How much of the bill is demand charges, and what drives the peaks?
What is the expansion plan, and does the utility have the capacity to support it on that timeline?
How long can the product safely hold temperature during an outage?
The answers usually point to a clear plan. Sometimes they point to doing less than expected. Either way, they are worth knowing before the capital is spent.
PowerStack works with cold storage and logistics operators from feasibility through construction, with one accountable team and no handoffs. We have built solar, storage, and electrical systems for over a decade. Now we bring them together.
Bring us the site, the constraints, and the timeline. We’ll bring the numbers.
