CO₂ transcritical and cascade refrigeration systems — supermarket, cold storage and industrial
CO₂ (R744) is the fastest-growing natural refrigerant — GWP of 1, non-toxic and increasingly efficient thanks to parallel compression, ejectors and adiabatic gas coolers. ColdMatch sources transcritical booster racks, subcritical cascades and full turnkey CO₂ plants for supermarkets, cold storage and industrial process.
What ColdMatch delivers
- Transcritical CO₂ booster racks with parallel compression and ejectors
- NH₃/CO₂ and HFC/CO₂ cascade plants for –40 to –55°C IQF and blast
- Adiabatic and evaporative gas coolers for hot-climate CO₂ performance
- Heat recovery from CO₂ discharge for tap water, space heating and process
- Supermarket packs, industrial racks and modular CO₂ chillers
Compare CO₂ with NH₃ and HFC
You submit one RFQ. Our team handles the supplier outreach.
There is no direct buyer-to-supplier connection. Your request comes to the ColdMatch team, which contacts suitable suppliers and manufacturers on your behalf. Supplier and manufacturer information on this site is for research only; it is not a contact directory and does not mean a supplier has been vetted.
- You build your project and submit an RFQ.
- The ColdMatch team validates and organizes the requirements.
- We contact suitable suppliers and manufacturers for you.
- We present their organized responses to you through ColdMatch.
Supplier and manufacturer information is provided for research only; it is not a directory for direct contact. There is no direct buyer-to-supplier connection: every RFQ comes to the ColdMatch team, which validates it, contacts suitable suppliers on the buyer's behalf and presents organized responses through ColdMatch.
CO₂ (R744) vs HFC / NH₃ — sizing & TCO calculator
Estimate the CAPEX premium for transcritical or cascade CO₂, hot-climate energy impact vs an HFC baseline, and simple payback including refrigerant phase-down risk.
Indicative only. Coefficients reflect industry ranges for 300 kW – 2 MW industrial refrigeration; ejector, heat-recovery and site-specific factors will move real numbers ±20%. Use the RFQ Builder to obtain engineered vendor quotes before committing CAPEX.
Score every refrigerant quote on the same criteria
22 checklist items across load, site & safety, refrigerant scoring and commercial compliance. Enter your preferences and we'll email the PDF plus a supplier-neutral shortlist matched to your NH₃, CO₂ or HFC/HFO scenario.
- Total refrigeration load (kW) at design ambient
- Storage / process temperature set-points (°C) per zone
- Design ambient (°C) and altitude
- Annual operating hours per zone
- Product mix, throughput and future expansion (Phase 2 kW)
- Occupancy type (industrial, food factory, public building, port)
- Machinery room location, ventilation, gas detection budget
- Local codes: EN 378 / ASHRAE 15 / IIAR class and toxic zoning
- Distance to occupied areas / property line
- Water availability and quality for evaporative condensers
- GWP target and phase-down exposure (F-Gas 2024 / AIM Act)
- Toxicity / flammability tolerance for the site
- Ambient class (mild / warm / hot) vs CO₂ transcritical penalty
- Charge size, leak-rate exposure and refrigerant-cost trajectory
- Local service ecosystem: NH₃ certified techs / CO₂ trained crews
- Efficiency (COP) at design conditions vs HFC baseline
- CAPEX premium tolerated for lower lifetime OPEX
- Budget range (USD) and financing structure (self, lease, ECA, DFI)
- Payback / IRR hurdle rate
- ESG / Scope-1 refrigerant reporting requirement
- Insurance and permit constraints (ammonia PSM / CO₂ MAWP)
- Warranty, spares and 10-year TCO expectation
R404A, R134a, R410A and R22 — replacement paths, dated deadlines, retrofit cost and payback ranges in one place.
When is CO₂ refrigeration the right choice?
CO₂ (R744) suits sites with low-charge or urban safety constraints, supermarket and mid-size industrial duties, and cascade low-temperature stages under ammonia. It performs strongly in cool and temperate climates; in high-ambient regions transcritical systems need parallel compression, ejectors or adiabatic gas coolers to stay competitive. Selection depends on capacity, temperature, energy cost, regulation and maintenance capability — no refrigerant is universally best.
What does a CO₂ system cost to install and run?
CO₂ plants carry a CAPEX premium over HFC for pressure-rated components and controls, offset by refrigerant cost, regulatory certainty and, in suitable climates, competitive energy use. Actual payback depends on ambient conditions, tariff, load profile and system architecture, so it should be modelled per project rather than assumed.
What information is needed to quote a CO₂ plant?
Cooling capacity per temperature level, room or process temperatures, ambient design conditions, site power supply, safety and space constraints, heat recovery ambitions, and available maintenance capability for high-pressure systems.
- •50–300 kW packaged transcritical booster
- •300 kW–1 MW industrial booster or cascade LT stage
- •1 MW+ NH₃/CO₂ cascade for frozen distribution
Exact system sizing depends on required temperature, ambient climate, product load and turnover rate, door openings, insulation specification, storage duration, redundancy level and operating hours. ColdMatch does not manufacture equipment — we help industrial buyers compare suitable suppliers and technologies against project-specific technical and commercial requirements.
- •Country, project location and site status (greenfield or existing building)
- •Application and product stored or processed
- •Required temperature range and any humidity requirement
- •Storage capacity (m², m³ or pallet positions) and daily throughput
- •Ambient/design climate conditions at site
- •Available power supply and backup or redundancy requirement
- •Preferred refrigerant, if already defined by policy or regulation
- •Indicative budget range and target commissioning date
Frequently asked questions
How ColdMatch Group works — independent B2B procurement and sourcing platform — ColdMatch Group is an independent B2B procurement and sourcing platform for industrial refrigeration, cold storage and cold-chain projects from USD $250K+, where the ColdMatch team reviews each buyer brief, contacts suitable third-party suppliers on the buyer's behalf and organizes their responses.
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Refrigeration bids are only comparable when refrigerant, duty, evaporating temperature, redundancy and controls are specified. Qualify the design intent, then issue one RFQ.
Supplier-neutral. Free for buyers and project owners. Best suited to commercial projects from USD $250,000.