Quick answer
In a cold storage project, define the engineering basis (products, temperatures, throughput, heat load) and estimate lifetime operating cost (energy, maintenance, refrigerant, downtime) before asking suppliers for prices. Only then can quotations be compared like for like, so you pay the right price for the right specification rather than the lowest price for an undefined one.
Key takeaways
- Why define engineering before asking for supplier prices? Because without a fixed design basis each supplier prices a different plant, so quotations cannot be compared fairly.
- How do I estimate cold storage energy consumption? Approximately: average refrigeration load in kW divided by system COP, multiplied by annual operating hours, then priced at your tariff.
- What is lifecycle cost (LCC) in refrigeration? The capital cost plus the discounted operating costs (energy, maintenance, refrigerant, downtime) over the planning life of the plant.
- When should suppliers be contacted? After requirements, feasibility and economics are defined, so that suppliers price the same scope.
Reviewed: 2026-10-16 · ColdMatch Group
Most cold storage purchasing goes wrong in the same place: the first serious document is a supplier quotation. At that point the supplier, not the buyer, has decided the design temperature, the heat load, the redundancy and the energy basis. Two quotations that look comparable can describe very different plants. This guide explains how to reverse the order, so engineering and lifetime economics come first and supplier price comes last.
Editorial responsibility: ColdMatch editorial team. Reviewed 16 October 2026. General buyer guidance, not engineering, legal or financial advice. Confirm design decisions with a qualified refrigeration engineer.
What does "engineering before price" mean?
It means the buyer fixes a written design basis (what is stored, at what temperature, in what quantities, how fast it arrives and leaves, under which climate and power conditions) and a lifetime cost model before inviting bids. Suppliers then price the same requirement, and differences in their offers become visible and explainable.
Why is the cheapest quotation often not the cheapest project?
Equipment price is paid once; energy, maintenance, refrigerant service and the cost of temperature failures are paid every year for the life of the plant. A quotation can be cheaper because capacity is smaller, insulation thinner, redundancy absent, controls simpler or commissioning excluded. None of that appears in the headline number. The aim is the right price for the right specification and result, not the lowest price.
The lifecycle stages: a project operating system
ColdMatch works as a procurement and project operating system for buyers of projects of roughly USD 250,000 and above. The sequence below is how we suggest organising any cold storage project, whether or not you use us:
| Stage | Key question | Typical output |
|---|---|---|
| 1. Discover | What problem or opportunity are we solving? | Problem statement, product list |
| 2. Explore options | Which concepts could work (new build, expansion, retrofit, blast freezing)? | Shortlist of concepts |
| 3. Requirements | What exactly must the facility do? | Design basis / URS |
| 4. Feasibility | Is the heat load and power realistic? | Load and energy estimates |
| 5. Economics | What will it cost to build and to run? | CAPEX, OPEX, scenarios |
| 6. Specification | What will suppliers price? | RFQ package, acceptance tests |
| 7. Supplier search | Which manufacturers and installers fit this scope? | Qualified shortlist |
| 8. Compare and negotiate | Which offer delivers the result at the best lifetime value? | Scored comparison |
| 9. Execute | How do we reduce delivery risk? | Plan, FAT/SAT, commissioning |
Supplier vetting comes at stage 7 deliberately. Searching earlier invites suppliers to define the scope for you.
Step 1–3: write the design basis
A useful design basis fits on two pages. Use this worksheet:
- Products and their required storage temperature and humidity ranges (from your quality function or product specifications)
- Incoming product temperature and the pull-down time you require
- Peak stock (pallets or tonnes) and daily throughput in and out
- Room dimensions, door count, door size and expected openings per hour
- Site climate design conditions and available electrical capacity
- Required redundancy (for example N+1 compressors) and backup power expectations
- Refrigerant constraints under local regulations
- Monitoring, alarm and documentation needs (HACCP, GDP or customer audits)
- Expansion plans over the next 5–10 years
Step 4: how do you estimate heat load?
Total refrigeration load is the sum of several components. A simplified planning form:
Q_total = Q_transmission + Q_product + Q_infiltration + Q_internal + Q_defrost, then add a safety factor (often 10–20% at planning stage; your engineer decides).
- Transmission: Q = U × A × ΔT, where U is the panel heat-transfer coefficient (W/m²·K), A the surface area and ΔT the inside-outside temperature difference.
- Product: Q = m × c × ΔT ÷ t, where m is mass per day, c specific heat and t the pull-down time; add latent heat if products freeze.
- Infiltration: depends on door size, openings and air temperature difference; strip curtains and fast doors reduce it.
- Internal: people, lighting, forklifts, evaporator fans.
- Defrost: heat added back during defrost cycles.
Use the ColdMatch refrigeration load calculator for a first estimate. Treat its result as a planning figure to discuss with suppliers, not a final design.
Step 5: how do you estimate energy and OPEX?
A transparent first-pass energy estimate:
Annual energy (kWh) ≈ average refrigeration load (kW) ÷ system COP × operating hours per year
Example of method only: an average load of 60 kW at an assumed seasonal COP of 2.5 over 8,760 hours gives 60 ÷ 2.5 × 8,760 ≈ 210,000 kWh/year. Multiply by your own tariff. COP varies with design temperature, climate, refrigerant and equipment; ask every bidder to state the COP basis and conditions they assume.
Annual OPEX = energy + planned maintenance + refrigerant service and leak checks + monitoring/software + insurance + expected repair and downtime allowance.
How do you compare CAPEX and OPEX over the lifetime?
Use a simple discounted lifecycle cost:
LCC = CAPEX + Σ (OPEX_year ÷ (1 + r)^year) over the planning life (often 15–20 years for the purposes of comparison), where r is your discount rate.
Run at least three scenarios (expected, high tariff, low utilisation) and look at which option stays acceptable in all three. The energy lifecycle calculator supports this comparison, and our explainer on cheapest refrigeration versus lifetime cost shows how the trade-off works.
Step 6: turn it into a comparable RFQ
An RFQ is comparable when every bidder prices the same thing. Include the design basis, the required outputs (not a brand), the scope boundaries (civil, electrical, installation, commissioning, training), the energy basis to be declared, warranty and service expectations, and acceptance tests such as temperature uniformity and pull-down tests. The RFQ builder structures this for you.
Steps 7–9: suppliers, comparison and execution
Once scope and economics are defined, the ColdMatch team reviews the request and contacts suitable refrigeration manufacturers and installers on the buyer's behalf, then presents organised responses. Compare offers with a scorecard:
| Criterion | What to check |
|---|---|
| Capacity basis | Stated load, conditions and safety margin match your design basis |
| Energy | Declared COP/power at stated conditions; annual kWh estimate |
| Scope | Exclusions, site works, commissioning, documentation |
| Lifecycle | Maintenance plan, spare parts, refrigerant, service response |
| Risk | References you can verify, warranty terms, delivery schedule |
| Acceptance | Tests and pass criteria before final payment |
Common mistakes to avoid
- Asking for prices before agreeing temperatures and throughput
- Comparing quotations with different capacities or exclusions
- Ignoring incoming product temperature and pull-down time
- Treating energy as an afterthought instead of a bid requirement
- Skipping commissioning and acceptance testing to save money
- Leaving no space or power for future expansion
What does ColdMatch cost the buyer?
The ColdMatch guides and online calculators are available to use without upfront payment, and buyers can submit a project request through the RFQ builder without a fee to submit. Any specialist consulting or project-management engagement beyond that would be agreed separately; we do not claim every service is free. ColdMatch does not guarantee savings or outcomes.
Next steps
Start with the refrigeration load calculator, then model operating cost in the energy lifecycle calculator. If your project is in the USD 250,000+ range, use the cold room planning wizard or build an RFQ. More tools are on the tools page.
Run the numbers
Calculators for this project type
Indicative planning figures only — final sizing belongs to the supplier's or consultant's detailed design.
Medical cold chain calculator
Vaccine, pharma and ULT storage volume with redundancy and monitoring requirements.
Energy & backup powerEnergy & backup power cost calculator
Annual energy spend from load and running hours, plus the cost of generator hours during outages.
Frequently asked questions
Plan the numbers before you send an RFQ
The reference pages buyers use most before requesting quotes.