Greenhouse and Energy Minimum Standards (Liquid-chilling Packages Using the Vapour Compression Cycle) Determination 2012

This Determination is a legislative instrument made under section 23 of the Greenhouse and Energy Minimum Standards Act 2012 (Cth) (the Act). It imposes mandatory minimum energy performance standards (MEPS) on a specific product class: air-cooled and water-cooled liquid-chilling packages (commonly called chillers) with a cooling capacity of 350 kW or above. The Determination prescribes the energy efficiency levels that such products must meet, the test methods required to verify compliance, and the conditions under which multiple models may be treated as a single family of models for registration and testing purposes. In practical terms, the Determination uses the force of Commonwealth law to compel manufacturers, importers, and suppliers to achieve a prescribed level of energy efficiency before they can supply these chillers to the Australian market.

The substantive performance requirements are not written directly into the Determination. Instead, the instrument incorporates three Australian/New Zealand Standards by reference: AS/NZS 4776.1.1:2008 (rating and testing for performance rating), AS/NZS 4776.1.2:2008 (method of rating and testing for performance testing), and AS/NZS 4776.2:2008 (MEPS and compliance requirements). Section 6 of the Determination states that the “energy use requirements” are those mentioned in section 5 of AS/NZS 4776.2:2008, and the test methods are those described in sections 5 of AS/NZS 4776.1.1:2008 and sections 5 to 10 of AS/NZS 4776.1.2:2008. The Determination does not create any labelling requirements (section 7) or other GEMS requirements (section 8). Accordingly, the entire compliance burden falls on meeting the MEPS threshold and conducting the prescribed tests.

The Determination classifies all covered products as “category A products” under section 29 of the Act (section 10). Category A products are subject to the highest level of GEMS regulatory oversight, including mandatory registration and the possibility of civil penalties for non-compliance. The Determination also specifies that two or more models may be treated as a single family of models under section 28 of the Act if they share the same brand, rely on the same test report, and have the same physical and energy performance characteristics relevant to the sections 6 and 7 requirements. This provision allows suppliers to avoid duplicative testing for essentially identical products, reducing compliance costs.

From an economic perspective, the Determination imposes a uniform command-and-control standard that raises the floor for energy efficiency. For regulated entities, this means higher upfront costs for product design, testing, and certification. For consumers and businesses that purchase and operate these chillers, the typical trade-off is a higher purchase price in exchange for lower electricity consumption over the product’s life. The free-market concern is whether the mandated standard is set at an appropriate level, or whether it inadvertently excludes more innovative but differently configured chillers that might achieve better lifecycle outcomes. The Determination also creates a static regulatory baseline: the standards are incorporated “as they existed on the date this Determination came into force” (section 3 definitions). Any future improvements in the relevant AS/NZS standards will not automatically tighten the MEPS requirement unless the Determination itself is amended.

Liquid-chilling package. The Determination defines this as a factory-made, prefabricated assembly (not necessarily shipped as one package) of one or more compressors, condensers, and evaporators, with interconnections and accessories, designed to cool water using a vapour compression refrigeration cycle. The definition intentionally aligns with clause 4.10 of AS/NZS 4776.1.1:2008. This is not a generic “chiller” term: it excludes machines that cool fluids other than water, those driven by non-electric motors, and those incorporating heat pump or heat recovery functions. The definition is central because it determines the product’s inclusion in or exclusion from the Determination.

Vapour compression cycle. The Determination refers implicitly to this mechanical cycle in the defined term “liquid-chilling package.” The cycle uses a compressor, condenser, expansion device, and evaporator to transfer heat from water to a cooling medium (air or water). All covered products must use this cycle; absorption chillers, for example, are not within scope.

Product class. Section 5(2) states that all covered products form a single product class for the purposes of the Act. This is significant because GEMS determinations can create multiple product classes with different requirements. Here, there is only one class, and it is defined solely by cooling capacity of 350 kW or above, by cooling medium (air or water), and by the exclusion of several specific types.

Covered by / not covered. Section 5(3) lists eight categories of products explicitly excluded from the Determination. These include liquid-chilling packages driven other than by an electric motor, those with centrifugal fans (defined in section 5(4)), those with remote condensers, those for fluids other than water, free cooling packages (both air and water cooled), heat pump (reverse cycle) packages, and heat recovery packages. These exclusions are not minor carve-outs; they encompass many modern chiller designs that incorporate energy-saving features such as free cooling or heat recovery. The rationale, from the instrument’s text, is that these products are outside the scope of the referenced AS/NZS standards. However, the practical effect is that suppliers of these excluded types are not required to meet any GEMS MEPS for those specific functions,though they may still be captured if they also operate in standard cooling mode.

Family of models. Section 9 of the Determination sets out the circumstances under which two or more models from the same product class are considered a family of models. The conditions are: (a) single brand; (b) reliance on the same test report conducted under section 6; (c) same physical characteristics relevant to sections 6 and 7; and (d) same energy performance characteristics (rated energy consumption, rated capacity, energy efficiency). This provision is important for compliance efficiency. However, the requirement that the models be “of a single brand” means that private-label or re-branded products cannot be grouped unless the brand is identical. This may limit cost savings for suppliers who sell the same underlying product under multiple brand names.

The Determination directly affects any person who manufactures, imports, or supplies liquid-chilling packages of 350 kW cooling capacity or above that are air-cooled or water-cooled and driven by an electric motor. This includes original equipment manufacturers, Australian importers, distributors, and on-sellers. Because the product class definition cuts off at 350 kW and excludes certain types, smaller chillers and those with alternative drive mechanisms, centrifugal fans, remote condensers, or secondary functions (heat pump, heat recovery, free cooling) are not directly regulated by this Determination. However, suppliers of excluded types must still ensure they are not inadvertently caught by the scope. For example, a water-cooled chiller with a cooling capacity of 400 kW that is not a heat recovery model and uses an electric motor is covered. A similar chiller that is a heat pump (reverse cycle) model is excluded, even if its cooling capacity and energy consumption are identical.

The Determination also indirectly affects building owners, facility managers, and tenants who purchase or lease large commercial or industrial chillers. The compliance cost borne by suppliers will be passed through, at least in part, to purchasers in the form of higher prices. On the other hand, the mandated MEPS should reduce electricity consumption over the chiller’s operating life. The net effect on total cost of ownership depends on the stringency of the MEPS threshold, the electricity tariff, and the utilisation pattern. The Determination does not mandate any particular technology or design; it merely sets a performance floor. Consequently, suppliers may choose to meet the standard through improved heat exchangers, more efficient compressors, better controls, or other engineering changes. The cost of compliance will vary across product lines.

Testing laboratories are directly affected. Section 6(2) requires testing in accordance with the specified sections of AS/NZS 4776.1.1:2008 and AS/NZS 4776.1.2:2008. Only laboratories with the appropriate equipment and accreditation can perform these tests. The cost of testing a single chiller model can be substantial, given the size and complexity of units above 350 kW. This testing cost creates a barrier to entry for smaller suppliers and may concentrate the market among larger players who can spread testing costs over higher sales volumes. The family of models provision mitigates this somewhat but does not eliminate the burden.

The GEMS Regulator (currently the Department of Climate Change, Energy, the Environment and Water) is responsible for monitoring compliance. The Determination itself does not specify enforcement powers, but the Act grants the Regulator powers to issue infringement notices, seek civil penalties, and require corrective action. Industry associations and trade bodies are indirectly affected as they may need to educate members about compliance obligations.

The central duty imposed by the Determination is the obligation for any regulated product to meet the GEMS level requirements specified in section 6. For paragraphs 24(1)(a) and 25(a) of the Act, the “energy use requirements” are those in section 5 of AS/NZS 4776.2:2008. That AS/NZS standard sets minimum energy efficiency values (the “MEPS”) that the chiller must achieve. The duty is not to simply aim for efficiency but to achieve a quantified threshold. A supplier cannot supply a covered chiller unless its energy performance meets that threshold, as demonstrated by testing.

The determination of whether the duty is met requires testing that complies with the methods in sections 5 of AS/NZS 4776.1.1:2008 and sections 5 to 10 of AS/NZS 4776.1.2:2008. These testing duties fall on whoever is responsible for registering the model and placing it on the market. The test must be conducted on a representative unit of the model, and the results must be accurate and traceable. There is no allowance for using alternative test methods or for relying on historical data unless it was generated under these standards.

The Determination does not impose any labelling duties. Section 7 expressly states: “There are no GEMS labelling requirements for products covered by this Determination.” Similarly, section 8 states there are no other GEMS requirements. This is a deliberate simplification. It means that the regulated entity does not need to design, print, or affix an energy rating label; it does not need to report energy performance on the product itself. However, the GEMS Act separately requires that each model be registered in the GEMS Registry before supply, and the registration process typically requires declaring the tested performance values. The absence of labelling does not reduce the substantive compliance obligation.

The Determination confers a right on suppliers to group multiple models into a family of models under section 9, thereby avoiding separate testing for each model. The conditions must all be satisfied: same brand, same test report, same relevant physical characteristics, and same relevant energy performance characteristics (including rated energy consumption, rated capacity, and energy efficiency). This is a valuable right because testing a large chiller can cost tens of thousands of dollars. However, the right is not automatic; the supplier must be able to demonstrate that each model in the family meets the conditions. If any model within the claimed family does not actually share the same performance characteristics (for example, a different fan configuration that changes energy consumption), the family may be invalid and the supplier could face compliance action for unregistered models.

The Determination itself does not create or specify penalties. Instead, it operates under the enforcement framework of the Greenhouse and Energy Minimum Standards Act 2012. That Act provides for civil penalties for several contraventions, including supplying a product that does not meet the applicable GEMS level requirements, supplying a product that is not registered, and making false or misleading statements in connection with GEMS compliance. The maximum civil penalty for an individual is 500 penalty units; for a body corporate, it is 2,500 penalty units (section 43 of the Act, though the actual amounts are indexed). Under the Act, the Regulator can also issue infringement notices (on-the-spot fines) for lesser breaches, with amounts around 10 to 50 penalty units depending on the nature of the breach.

Enforcement is the responsibility of the GEMS Regulator, which can investigate using its powers under Part 7 of the Act. The Regulator may require the production of documents, enter premises (with consent or a warrant), and seize evidence. If a breach is found, the Regulator may accept an enforceable undertaking, issue a notice to remedy, or seek a civil penalty order from the Federal Court. The Determination does not contain any defence or exemption provisions; any non-compliance with the MEPS or testing requirements is a strict liability contravention under the Act, subject to the general defences in the Act (such as reasonable mistake, but those are limited).

The Act also contains provisions dealing with the supply of non-compliant products. A supplier who becomes aware that a product they registered does not meet the GEMS level requirements must inform the Regulator. Failure to do so is itself a contravention. Because the Determination has no labelling requirements, there is no risk of a labelling penalty, but the supply of an unregistered or non-complying product exposes the supplier to the full range of Act penalties.

The Determination’s family of models provision (section 9) can be a source of risk. If a supplier incorrectly includes a model in a family that does not share the same performance characteristics, each supply of that model is a supply of an unregistered product (because the registration for the family does not cover it). The supplier could be liable for multiple civil penalty contraventions: one for each unit supplied. The Regulator has the power to issue infringement notices for each supply, which could accumulate quickly. Given that chillers are high-value capital goods, the total penalty exposure could be substantial.

There is no provision in the Determination for voluntary surrender or recall, but the Act empowers the Regulator to issue a recall notice if a product fails to comply with the GEMS level requirements and poses a risk to competition or the environment. Even without such a notice, the supplier’s reputation and commercial relationships may suffer. Insurance for compliance risks may be available but is not addressed in the instrument.

The Determination sits within a broader regulatory ecosystem. Its primary interaction is with the Greenhouse and Energy Minimum Standards Act 2012, which provides the enabling powers and the penalty framework. Under that Act, the Determination is a “GEMS determination” that sets the GEMS level requirements for a particular product class. The Act requires that a product covered by a determination must be registered before it can be supplied. Registration is not dealt with in the Determination; it is governed by the Act and the GEMS (Registration) Regulations. Therefore, even though the Determination has no labelling or other requirements, the supplier must still register each model (or family) with the GEMS Registry and pay the applicable fees. The Determination’s classification of all covered products as category A products (section 10) means they are subject to full registration and the associated regulatory oversight.

The Determination interacts with the Legislative Instruments Act 2003 (now the Legislation Act 2003). The Determination was registered on the Federal Register of Legislative Instruments, and is subject to tabling and disallowance by Parliament. This provides a degree of democratic oversight. The note at the end of the Determination refers to the Federal Register of Legislative Instruments.

The Determination also interacts with state and territory building and energy efficiency regulations. The National Construction Code and various state-based energy efficiency schemes may also impose requirements on chillers. For example, the Building Code of Australia requires certain minimum energy performance for HVAC equipment, and some states have energy efficiency certificates or rebates. The Determination does not pre-empt these; it operates concurrently. Compliance with the Determination’s MEPS does not guarantee compliance with other regulatory regimes, and vice versa. A supplier must navigate each regime separately.

The Determination incorporates Australian/New Zealand Standards by reference. Under Australian law, such incorporation does not make the full text of the standard part of the determination for copyright purposes, but the standard’s requirements become legally enforceable. This creates an interaction with copyright law. The Determination itself acknowledges this by including a copyright notice and details of the Creative Commons licence for Commonwealth material. Suppliers must ensure they have access to the correct versions of AS/NZS 4776.1.1:2008, AS/NZS 4776.1.2:2008, and AS/NZS 4776.2:2008. These standards are available for purchase from Standards Australia or SAI Global. Using an incorrect or superseded version could result in non-compliance.

The source text provided for this Determination is the original instrument signed on 25 October 2012 and registered on the Federal Register of Legislative Instruments. The text does not reference any amending instruments or compilations. It is a stand-alone determination that appears to be the first and only version covering liquid-chilling packages under the Greenhouse and Energy Minimum Standards Act 2012. The note at the end of the Determination points to the FRLI website but gives no indication that amendments exist.

However, it is possible that amendments have been made since 2012 that are not reflected in the source text provided to the analyst. The GEMS regime has undergone several reforms, including the Greenhouse and Energy Minimum Standards Amendment (Registration Fees) Act 2015 and other changes to the parent Act. The Determination itself may have been amended by subsequent instruments to update the referenced standards, vary the MEPS levels, or add new product classes. Based solely on the source text, no such amendments can be confirmed. A practitioner should not rely on the 2012 version as current without checking the Federal Register of Legislation for a compilation that includes any amendments. The GEMS Regulator’s website may also list the current status of each determination.

The Determination’s static incorporation of standards at the date of commencement (section 3 definitions and section 4(2)) means that any amendment to the Determination would likely be required to update the standards to a newer version. If no amendment has occurred, the applicable standards remain the 2008 editions, even if later editions (e.g., AS/NZS 4776.1.1:2019) have been published. This creates a potential gap between industry best practice and regulatory compliance. Suppliers may voluntarily choose to meet newer standards, but the Determination does not require it. Conversely, if a supplier designs to a newer standard but inadvertently fails to meet the 2008 version, they may be non-compliant.

The source text contains no information about any litigation involving this Determination. No court cases, tribunal decisions, or enforcement actions are referenced. Based solely on the provided source, it is not possible to determine whether the Determination has been the subject of judicial review, administrative challenge, or civil penalty proceedings. The GEMS Act has been in force since 2012, and there have been some reported decisions on GEMS matters generally (e.g., GEMS Regulator v. Electrolux Home Products Pty Ltd - but this is not mentioned in the source). Because the source does not provide that information, we cannot include any details here. A thorough research would require checking the Federal Court, the Administrative Appeals Tribunal, and the GEMS Regulator’s enforcement notices.

The absence of litigation in the source is not unusual. Many GEMS determinations are technical and rarely litigated. Most compliance is achieved through voluntary action or infringement notices rather than court proceedings. However, the potential for litigation exists. A supplier who disputes a non-compliance finding may challenge the Regulator’s interpretation of the Determination, the validity of the test method, or the classification of a product as covered or excluded. The Determination’s incorporation of standards by reference could also be challenged on administrative law grounds, for example, if the standards were not available at a reasonable price or if the Determination failed to adequately specify the requirements. No such challenges are reported in the source.

Several features of this Determination are potential traps for the unwary.

1. The definition of “liquid-chilling package” is not as broad as colloquial “chiller.” Many machines that cool water using vapour compression are excluded if they use non-electric drives, have centrifugal fans, are heat pumps, or include free cooling or heat recovery. A supplier might assume a product is covered and register it accordingly, only to find that its special features push it into an excluded category - or worse, that the product is covered because it falls outside the exclusion. The exclusions are tightly defined; a chiller with a heat recovery option that can heat water to 39°C is not a “heat recovery liquid-chilling package” (which requires a minimum 40°C). Such a chiller would be covered, not excluded.

2. The 350 kW threshold is cooling capacity, not electrical input power. A chiller with a cooling capacity of 349 kW is not covered, even if its energy consumption is high. Conversely, a chiller with a cooling capacity of 351 kW is covered, even if it is relatively efficient. The capacity must be measured under the test conditions in the standards.

3. The static incorporation of standards creates regulatory lock-in. The Determination references the standards “as they existed on the date this Determination came into force.” If the AS/NZS 4776.2:2008 standard is updated to a more stringent MEPS, the Determination does not automatically adopt it. A supplier who voluntarily meets the newer standard may still be non-compliant if they inadvertently miss a requirement of the 2008 version. Conversely, a supplier meeting only the 2008 version may miss out on being recognised for better efficiency under other schemes.

4. No labelling requirement does not mean no paperwork. While section 7 says no labelling, the Act still requires registration, which includes submitting test data, declarations, and paying fees. Suppliers who assume no labelling means no compliance burden may fail to register and face penalties.

5. The family of models condition requiring a “single brand” is restrictive. A manufacturer that sells the same physical chiller under two different brand names (e.g., house brand and premium brand) cannot group them into a single family. Each brand requires its own registration and test report, effectively doubling the compliance cost for the same product.

6. The exclusion of “centrifugal fan” chillers is limited. Centrifugal fan is defined, but many large chillers use centrifugal fans. If a chiller uses axial fans, it is not excluded. Suppliers must verify the fan type against the definition. The definition itself is technical and may be subject to interpretation.

Compliance with this Determination involves several steps that a supplier must complete before supplying a covered liquid-chilling package in Australia.

Step 1: Determine if the product is covered. Confirm that the product is an air-cooled or water-cooled liquid-chilling package driven by an electric motor, with a cooling capacity of 350 kW or greater. Check the exclusions in section 5(3)(a) to (h). If the product falls within any exclusion, it is not covered by this Determination, but be sure the exclusion applies exactly (e.g., a “heat recovery liquid-chilling package” must be designed to heat water to a minimum 40°C). If the product is covered, proceed.

Step 2: Obtain the relevant standards. Purchase or access AS/NZS 4776.1.1:2008, AS/NZS 4776.1.2:2008, and AS/NZS 4776.2:2008. Ensure you have the editions that existed as at 25 October 2012 (or the actual registration date). Do not rely on later editions without verifying they are identical to the 2008 versions.

Step 3: Conduct or commission testing. Arrange for a representative model to be tested in accordance with section 5 of AS/NZS 4776.1.1:2008 and sections 5 to 10 of AS/NZS 4776.1.2:2008. The test must measure the energy efficiency (e.g., coefficient of performance or energy efficiency ratio) and confirm it meets the minimum performance values in section 5 of AS/NZS 4776.2:2008. Testing should be performed by a laboratory with appropriate capability and, preferably, NATA accreditation. Keep the test report as the primary evidence of compliance.

Step 4: Consider grouping models into families. If you have multiple models that meet the conditions in section 9 (same brand, same test report, same physical and energy performance characteristics across the listed attributes), you may register them as a single family. This saves testing costs but imposes the burden of showing that each model in the family truly matches. The test report must be valid for all models.

Step 5: Register the model or family with the GEMS Regulator. This step is not detailed in the Determination but is required under the Act. Registration is done through the GEMS Registry online portal. You will need to supply the test report, product details, and pay the prescribed fee. For category A products, the fee is higher than for other categories. Registration must be completed before any supply occurs.

Step 6: Maintain records. Retain all test reports, registration certificates, correspondence with the Regulator, and records of each supply. The Act imposes record-keeping obligations, typically for at least five years after the last supply. The Determination does not specify a period, but general GEMS guidance recommends five years.