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Cold Storage Utility Cost Calculator

Cold storage facilities consume enormous amounts of energy.

%
%
%
$

Annual utility cost

$981,600

Cost per SF

$2

Annual kWh

8,180,000

How the math works

kWh = sqft × (freezer × 30 + cooler × 20 + dry × 3). Cost = kWh × rate.

400k × (30%×30 + 55%×20 + 15%×3) = 400k × 20.45 = 8.18M kWh × $0.12 = $981k/yr, $2.45/SF.

How to Use

  1. Enter total square footage.
  2. Enter freezer % of total.
  3. Enter cooler % of total.
  4. Enter kWh per sqft / yr.
  5. Enter electricity rate / kWh.
  6. Read annual utility cost.

Frequently Asked Questions

Why are cold storage utilities so high?

Refrigeration and freezer systems run 24/7/365. Typical cold storage facility uses 15-40 kWh per sqft annually vs 2-4 for dry storage. Cost: $2-8/sqft annually just for electricity. On 500k sqft facility: $1-4M/year utility cost. That's 25-50% of total operating expense for cold storage vs 5-15% for dry. Critical line item for tenant and landlord.

Freezer vs cooler?

Freezer (-10 to 0°F): 25-40 kWh/SF/yr. Cooler (28-45°F): 15-25 kWh/SF/yr. Dry (ambient): 2-5 kWh/SF/yr. Blast freezer (-40°F for rapid freeze): 50-80 kWh/SF/yr (specialty use). Mixed-use facilities (common) blend these — layout matters. Dedicated freezer has highest cost per sqft but most flexible for tenant.

How to reduce energy cost?

(1) LED lighting: 60-80% reduction in lighting energy. (2) High-efficiency compressors: 20-30% reduction in refrigeration. (3) Thermal envelope (insulation, door seals): 10-25% reduction. (4) Variable-frequency drives on motors: 15-25% reduction. (5) On-site solar: 30-80% of load. (6) Demand response programs: $15-50k/yr credit. Full upgrade on 500k SF facility: $3-8M investment; saves $400-900k/yr. 5-10 year payback. Strong ROI.

Who pays — tenant or landlord?

Usually tenant via triple-net lease (tenant pays all utilities). Landlord pays if gross lease. Most cold storage is NNN. But some leases have utility 'gross up' or 'included' provisions — examine carefully. Electricity rebilling requires submeter by zone; otherwise proportional allocation by sqft. Disputes common; include clear rebill methodology in lease.

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