Cold Storage Energy & What It Costs to Run
Cools produce
Enter the cooling load, COP, run hours and tariff to get the input power, the daily and period kWh, and the running cost of your cold store.
Cold-store running cost
Next: budget about ₹50,645 for 30 days of cooling; a higher-COP unit and tighter door discipline cut the 6,331 kWh bill the most.
1 TR ≈ 3.517 kW of cooling; input power = cooling ÷ COP. Real draw varies with ambient temperature, load, door openings and defrost cycles — treat this as a planning estimate.
Cold storage energy — key facts
- Cooling duty
- TR × 3.517 kW
- Input power
- cooling load ÷ COP
- Daily kWh
- input power × run hours
- Period kWh
- daily kWh × days
- Cost
- kWh × tariff
- Higher COP
- less power, lower cost
- Currencies
- 8 supported
- Privacy
- Runs in your browser; nothing uploaded
The electricity bill behind the cold chain
A cold store earns its keep by keeping produce fresh, but the compressor running it is often the single biggest line on the electricity bill. The chain is straightforward: the cooling load in tons of refrigeration becomes kilowatts at 3.517 kW per ton, the plant's COP tells you how much electrical power that actually draws, and run hours times the tariff turn it into money. Knowing the number lets you price storage, budget the season, and spot where efficiency pays.
This tool returns the input power, the daily kWh, the period kWh and the running cost from your load, COP, hours and tariff, in 8 currencies. Use it to set storage rates, compare plant options, and see how a better COP or off-peak running cuts the bill. Pair it with the Cold Room Cooling Load, Cold Storage Capacity and Cold Storage Rental tools to plan the whole facility.
Budget the bill
Daily and period kWh and the running cost.
Price storage
Know the energy cost behind your rate.
See COP's payoff
Watch a better COP cut input power.
Plan off-peak
Run the hours and tariff that save most.
Frequently Asked Questions
How is cold storage energy cost calculated?+
Input power = cooling load (tons of refrigeration × 3.517 kW) ÷ the COP. Daily kWh = input power × run hours per day; period kWh scales that over the days you run; and the cost = kWh × your electricity tariff. This tool chains all four steps and works in 8 currencies.
What is a ton of refrigeration?+
A ton of refrigeration (TR) is a unit of cooling capacity equal to about 3.517 kW — historically the heat needed to melt one short ton of ice in 24 hours. Cold-store plant is rated in tons of refrigeration, so the cooling load in TR times 3.517 gives the cooling duty in kilowatts.
What is COP and why does it matter?+
The Coefficient of Performance is the cooling delivered per unit of electrical power consumed — a COP of 3 means 3 kW of cooling for every 1 kW drawn. A higher COP means the compressor does the same cooling for less electricity, so input power = cooling load ÷ COP and the running cost falls as COP rises.
How do I find the cooling load?+
The cooling load is the total heat the store must remove — from the produce, respiration, the building fabric, air changes, lights and fans. A cold-room cooling-load calculator estimates it in tons of refrigeration or kW; enter that figure here to turn the load into electricity and cost.
Why is input power less than (or more than) the cooling load?+
Because of the COP. A refrigeration plant moves more heat than the electrical energy it consumes, so for a COP above 1 the electrical input power is less than the cooling duty. Dividing the cooling load by the COP gives the actual electrical draw the meter sees.
How can I cut the running cost?+
Improve insulation and door discipline to lower the cooling load, maintain the plant for a higher COP, run during off-peak tariff windows, fit variable-speed compressors and good condenser cooling, and avoid loading warm produce. Each lever shows up in this tool as a lower load, higher COP, fewer hours or cheaper tariff.
Does ambient temperature change the cost?+
Yes — hotter weather raises the heat leaking into the store and makes the condenser work harder, lifting both the cooling load and lowering the effective COP, so summer running costs are higher. Re-estimate the load and COP for peak conditions to budget for the worst case.
Does this work for any cold store or country?+
Yes — the physics (TR × 3.517 ÷ COP × hours × tariff) is universal. It suits a small cold room, a packhouse or a large cold-storage facility; just enter your cooling load, COP, hours and local tariff, and choose your currency to get the cost in your money.
Are the figures exact?+
They are solid estimates. Real consumption varies with weather, load patterns, defrost cycles, part-load efficiency and metering. Use measured plant COP and your actual tariff, re-run for peak conditions, and treat the result as a planning and budgeting figure rather than a guaranteed bill.