Innovation & Technology

How it works

ASHRAE’s fact sheet describes refrigerant classification and system safety design in Standards 15 and 34, including lower-GWP refrigerant options. A refrigerant label alone is not a complete system specification.

Where it fits

New or replacement cold-store and process-refrigeration projects where the engineer must compare refrigerant/system combinations.

Scale & geography

No numeric capacity threshold or country-wide suitability is established by this brief. Match throughput, temperature duty, local codes and service capability to your actual site; a source country is not an approval for your location.

Operational benefit & economics

Use the customer problem above as the performance question to test. A quantified operational benefit, CAPEX/OPEX saving or ROI is not established here. Request a measured baseline, comparable duty and project-specific costs before accepting a claim.

Procurement implications

Ask the engineer to define the safety design, service capability and applicable local requirements before comparing bids.

Risks, constraints & limits of the evidence

Standards information is not a market-readiness assessment, a jurisdiction-specific legal opinion or proof that a particular design is compliant. No refrigerant is endorsed here.

Questions for vendors and engineers

• Which classification and system design assumptions apply to the proposed refrigerant?
• Who owns safety review, commissioning, operator training and maintenance?

RFQ checklist

• Refrigerant and proposed system architecture
• Product temperatures, duty and ambient design conditions
• Site location, safety review and service responsibilities

How it works

A DOE project investigates ice-based thermal storage integrated with refrigerated display cases. Stored cooling is intended to be used later rather than produced entirely at the moment of demand.

Where it fits

An evidence reference for retail refrigerated cases; an industrial warehouse proposal would need its own engineering and application evidence.

Scale & geography

No numeric capacity threshold or country-wide suitability is established by this brief. Match throughput, temperature duty, local codes and service capability to your actual site; a source country is not an approval for your location.

Operational benefit & economics

Use the customer problem above as the performance question to test. A quantified operational benefit, CAPEX/OPEX saving or ROI is not established here. Request a measured baseline, comparable duty and project-specific costs before accepting a claim.

Maturity evidence

DOE display-case project: bench-scale prototype; further case-connected testing is described as a milestone, not established industrial deployment.

Procurement implications

If storage is proposed, request a charging/discharging design, controls integration and a product-temperature acceptance plan for the actual facility.

Risks, constraints & limits of the evidence

The presentation labels data preliminary. Project objectives are not verified performance results. Grocery display-case research cannot establish industrial cold-store savings, resilience or readiness.

Questions for vendors and engineers

• What evidence matches our application rather than a different demonstration?
• How will charging, storage losses, product temperatures and backup operation be tested?

RFQ checklist

• Hourly cooling demand and operating schedule
• Storage medium, available space and charging conditions
• Control interfaces and project-specific acceptance tests

How it works

DOE industrial refrigeration guidance lists variable-speed control for evaporator fans and compressor motors, together with improved compressor and condenser sequencing, as measures for facilities to consider.

Where it fits

Industrial refrigeration upgrades or new plants where operating loads and control interfaces can be documented.

Scale & geography

No numeric capacity threshold or country-wide suitability is established by this brief. Match throughput, temperature duty, local codes and service capability to your actual site; a source country is not an approval for your location.

Operational benefit & economics

Use the customer problem above as the performance question to test. A quantified operational benefit, CAPEX/OPEX saving or ROI is not established here. Request a measured baseline, comparable duty and project-specific costs before accepting a claim.

Procurement implications

Ask bidders to state equipment compatibility, operating limits, control sequences and how baseline and proposed operation will be compared.

Risks, constraints & limits of the evidence

This is general guidance, not a specific deployment study or a quantified site result. The guidance does not establish a maturity stage for an individual proposed system.

Questions for vendors and engineers

• What operating range and minimum conditions must be maintained?
• How will control changes be commissioned and energy use measured at comparable duty?

RFQ checklist

• Load profile and current equipment/control inventory
• Temperature duty and required operating envelope
• Energy measurement boundary and commissioning responsibilities

How it works

A DOE field-validation project describes intelligent refrigeration forecasting and control, demand response and continuous commissioning in grocery stores. It is an adjacent-use evidence reference, not validation of warehouse robotics or an industrial cold-room system.

Where it fits

Questions for connected refrigeration controls; industrial cold-room automation needs separate project evidence. This is not a pharmaceutical validation reference.

Scale & geography

No numeric capacity threshold or country-wide suitability is established by this brief. Match throughput, temperature duty, local codes and service capability to your actual site; a source country is not an approval for your location.

Operational benefit & economics

Use the customer problem above as the performance question to test. A quantified operational benefit, CAPEX/OPEX saving or ROI is not established here. Request a measured baseline, comparable duty and project-specific costs before accepting a claim.

Maturity evidence

Grocery-store field-validation project described by DOE; no industrial cold-room deployment is established by this source.

Procurement implications

Define data ownership, sensor/control interfaces, human override and acceptance tests before including connected controls in a tender.

Risks, constraints & limits of the evidence

Projected benefits and milestones are not verified outcomes. No cold-room robotics or pharmaceutical deployment claim is made.

Questions for vendors and engineers

• Which completed tests match our equipment, product and operating conditions?
• What happens when the network, sensor or control service fails?

RFQ checklist

• Product duty, sensors and controller interfaces
• Data access, retention and cybersecurity responsibilities
• Alarm response, manual override and acceptance plan

How it works

EPA describes university-led work on ammonia inventory methods and dynamic charge calculations to flag losses, alongside field practices for identifying and addressing leaks.

Where it fits

Food and beverage ammonia-refrigeration projects; any other refrigerant or application needs separate evidence.

Scale & geography

No numeric capacity threshold or country-wide suitability is established by this brief. Match throughput, temperature duty, local codes and service capability to your actual site; a source country is not an approval for your location.

Operational benefit & economics

Use the customer problem above as the performance question to test. A quantified operational benefit, CAPEX/OPEX saving or ROI is not established here. Request a measured baseline, comparable duty and project-specific costs before accepting a claim.

Procurement implications

Specify what will be measured, how an abnormal condition is investigated and who responds. An inventory method is not a substitute for the engineer’s safety-detection design.

Risks, constraints & limits of the evidence

The EPA page summarizes research and field work; it does not validate a universal detection product, detection threshold or regulatory compliance.

Questions for vendors and engineers

• How are inventory changes distinguished from possible refrigerant losses?
• Who investigates a flag and records the repair and follow-up?

RFQ checklist

• Refrigerant inventory and system boundaries
• Proposed measurement method and investigation workflow
• Alarm, safety and maintenance responsibilities

How it works

FAO’s horticultural post-harvest reference covers temperature and humidity management, cooling methods, refrigerated transport and storage as parts of post-harvest management.

Where it fits

Produce packing, pre-cooling, storage and distribution planning. It is not pharmaceutical storage guidance.

Scale & geography

No numeric capacity threshold or country-wide suitability is established by this brief. Match throughput, temperature duty, local codes and service capability to your actual site; a source country is not an approval for your location.

Operational benefit & economics

Use the customer problem above as the performance question to test. A quantified operational benefit, CAPEX/OPEX saving or ROI is not established here. Request a measured baseline, comparable duty and project-specific costs before accepting a claim.

Procurement implications

Define incoming product condition, handling stages and environmental requirements before comparing equipment packages.

Risks, constraints & limits of the evidence

This is established technical guidance, not a readiness assessment of a new technology. It does not establish a particular facility’s yield, shelf life or food-safety outcome.

Questions for vendors and engineers

• Which product-specific conditions must be maintained at each handling stage?
• How will loading, cooling, storage and transport interfaces be checked?

RFQ checklist

• Product/cultivar, incoming temperature and throughput
• Cooling method, storage conditions and handling schedule
• Packing, loading and refrigerated-transport interfaces

How it works

At a MOP37 side event (Nairobi, November 2025), UNEP OzonAction and the International Institute of Refrigeration presented walk-in cold rooms for developing countries (passive cooling, thermal energy storage, natural refrigerants) and refrigerated-transport performance in extreme heat. The closing remarks called for deploying low-GWP refrigerants, strengthening energy efficiency and robust sector governance together.

Where it fits

Cold rooms, packhouses and reefer fleets in hot climates where ambient design conditions, refrigerant service and technician capacity must be confirmed locally.

Scale & geography

No numeric capacity threshold or country-wide suitability is established by this brief. Match throughput, temperature duty, local codes and service capability to your actual site; a source country is not an approval for your location.

Operational benefit & economics

Use the customer problem above as the performance question to test. A quantified operational benefit, CAPEX/OPEX saving or ROI is not established here. Request a measured baseline, comparable duty and project-specific costs before accepting a claim.

Procurement implications

State the ambient design temperature and ask each bidder for refrigerant choice, local safety rules, technician availability and capacity at peak ambient. Refrigerant selection is assessed per project and jurisdiction.

Risks, constraints & limits of the evidence

This is an event report of expert presentations, not a product assessment. Participant questions on solar cold rooms in tropical climates and hydrocarbon safety show these remain practical design issues. No refrigerant or vendor is endorsed and no savings are implied.

Questions for vendors and engineers

• What capacity does the system deliver at the stated peak ambient temperature, not only at rating conditions?
• Who services the proposed refrigerant locally, and which safety rules apply on this site?

RFQ checklist

• Peak ambient design temperature and product temperature range
• Proposed refrigerant, safety classification and local service availability
• Passive measures (insulation, shading) and any thermal storage proposed

How it works

FAO’s 2025 guide “Solar energy and the cold chain: A guide for small-scale fisheries interventions” covers solar PV fundamentals, advantages and limitations, solar refrigeration and ice-making, and how to assess whether solar is viable and how to design and procure systems. It stresses economic feasibility and local capacity to operate and maintain the systems.

Where it fits

Weak-grid or off-grid sites considering PV-powered refrigeration, ice production or hybrid supply. The guide targets small-scale fisheries; larger packhouses and cold stores need their own engineering study.

Scale & geography

No numeric capacity threshold or country-wide suitability is established by this brief. Match throughput, temperature duty, local codes and service capability to your actual site; a source country is not an approval for your location.

Operational benefit & economics

Use the customer problem above as the performance question to test. A quantified operational benefit, CAPEX/OPEX saving or ROI is not established here. Request a measured baseline, comparable duty and project-specific costs before accepting a claim.

Procurement implications

Request a load profile, PV and storage sizing basis (battery or thermal), autonomy hours, backup generation, and a maintenance and spare-parts plan with a named local service party.

Risks, constraints & limits of the evidence

Benefits described in the guide are potential, not guaranteed. ColdMatch does not promise energy savings, food-loss reduction or payback; realistic storage and maintenance requirements must come from the project design.

Questions for vendors and engineers

• How many hours of autonomy does the design provide without sun or grid, and how is it achieved?
• Who maintains panels, batteries/storage and refrigeration locally, and what does that cost per year?

RFQ checklist

• Grid reliability record, outage pattern and energy tariff
• Daily cooling/ice load, pull-down needs and hold time
• Storage type, backup power, maintenance and local training plan

How it works

UNEP describes a Cool Coalition national cold-chain programme in India (2021–2025) covering policy, pilot demonstration projects and financing, aimed at efficient, renewable packhouses and reefer transport, and the Africa Centre of Excellence for Sustainable Cooling and Cold-chain (ACES) in Rwanda with a Kenya demonstration site for testing equipment and training.

Where it fits

Produce packhouse and reefer projects in emerging markets that want to reference demonstrated approaches and local training capacity.

Scale & geography

No numeric capacity threshold or country-wide suitability is established by this brief. Match throughput, temperature duty, local codes and service capability to your actual site; a source country is not an approval for your location.

Operational benefit & economics

Use the customer problem above as the performance question to test. A quantified operational benefit, CAPEX/OPEX saving or ROI is not established here. Request a measured baseline, comparable duty and project-specific costs before accepting a claim.

Maturity evidence

UNEP describes pilot demonstration projects and test/demonstration sites; this is not evidence of commercial performance for a specific supplier or facility.

Procurement implications

Ask bidders for references from comparable operating sites and for evidence that local technicians can service the proposed equipment.

Risks, constraints & limits of the evidence

Programme descriptions and global food-loss figures cited by UNEP are context, not a forecast for any project.

Questions for vendors and engineers

• Which comparable installations can the bidder reference, and with what operating data?
• What local training or service network supports the equipment after handover?

RFQ checklist

• Product, throughput and packhouse handling stages
• Reefer/transport interfaces and route conditions
• Reference sites, training and service arrangements

How it works

UNEP OzonAction publishes Cold Chain Technology Briefs, including 2025 editions on road refrigerated transport in hot climates, walk-in cold rooms in Article 5 countries and commercial/professional refrigeration, alongside briefs on cold storage and refrigerated warehouses, fishing vessels and vaccines.

Where it fits

Background reading for buyers and engineers framing technology options; vaccine content applies to that context only.

Scale & geography

No numeric capacity threshold or country-wide suitability is established by this brief. Match throughput, temperature duty, local codes and service capability to your actual site; a source country is not an approval for your location.

Operational benefit & economics

Use the customer problem above as the performance question to test. A quantified operational benefit, CAPEX/OPEX saving or ROI is not established here. Request a measured baseline, comparable duty and project-specific costs before accepting a claim.

Procurement implications

Use the relevant brief to frame questions, then require the bidder’s project-specific design and evidence.

Risks, constraints & limits of the evidence

Briefs are general technical overviews; they do not qualify a supplier, certify compliance or replace local engineering.

Questions for vendors and engineers

• Which local conditions (ambient, road, power) does the proposed transport or cold-room design account for?
• How does the offer address refrigerant transition and energy efficiency for this application?

RFQ checklist

• Application type (cold room, warehouse, road transport, vessel)
• Climate, power and route conditions
• Refrigerant and efficiency information requested from bidders