ASEAN’s New Buying Guide for Air Conditioners Cites a 6.09 Efficiency Number. One Country Actually Requires It.

What Did ASEAN’s Centre for Energy Actually Publish on November 2?

The ASEAN Centre for Energy (ACE), the intergovernmental body that coordinates energy policy across the Association of Southeast Asian Nations, published a recap on November 2, 2026 of a Green Public Procurement (GPP) guideline for room air conditioners that it had launched a month earlier, on October 5, at the 26th ASEAN Energy Business Forum in Manila. The guideline’s core claim is simple: governments can use their own buying power to pull the air-conditioner market toward higher efficiency before mandatory standards catch up.

The document itself is not a law. It is what ACE calls a regional reference — a template of green technical criteria, evaluation methods and verification steps that any of the ten ASEAN member states can adopt, adapt or ignore when it writes its own government tenders for cooling equipment, according to ACE’s November 2 publication. The project behind it, the Asia Low Carbon Buildings Transition (ALCBT) initiative, was the one that pushed it from draft to launch.

The Number the Guideline Cites, and Who Actually Has to Meet It

The benchmark the guideline points buyers toward is 6.09 watt-hours of cooling per watt-hour of electricity consumed (Wh/Wh), measured by Cooling Seasonal Performance Factor (CSPF) — a metric that averages a unit’s efficiency across a full cooling season rather than at one lab test point. That figure comes from a 2021 update to ASEAN’s regional policy roadmap on air conditioners, which set it as a target for 2025, according to ACE.

As of June 2026, ACE says only Singapore’s national efficiency standard actually requires that level. Malaysia has formally gazetted alignment with 6.09 Wh/Wh CSPF, but not until 2030. For the rest of the bloc, that number corresponds only to the top tier of a voluntary energy label — the rating a premium unit can advertise, not the floor every unit sold must clear.

That gap matters because of where ASEAN’s cooling demand is headed. The 9th ASEAN Energy Outlook, cited by ACE, projects electricity demand from room air conditioners to roughly double — from 134 terawatt-hours in 2025 to 288 terawatt-hours by 2040, a rise of about 115%. ACE’s own estimate is that harmonising and strengthening minimum energy performance standards (MEPS) for new units across the region could avoid roughly 149 terawatt-hours of that demand, though its published summary does not specify over what period that saving would accrue — a gap in the agency’s own disclosure worth flagging rather than restating as a clean annual figure.

Why a Voluntary Guideline Still Shapes a Market

A reasonable assumption is that a non-binding reference document launched by a regional secretariat changes very little. That undersells what government procurement actually does to an equipment market with this few buyers of scale: a tender specification becomes a de facto product requirement for any manufacturer that wants that contract, and manufacturers that retool a production line for one country’s tender rarely build a second line for every other market’s lower floor.

The guideline’s technical criteria go beyond the single CSPF number. ACE and the ALCBT project describe scoring bids on three elements together: energy efficiency performance, the global warming potential of the refrigerant used, and total life-cycle cost — the purchase price plus the electricity and maintenance a unit will consume over its working life — rather than upfront price alone. Panelists at the Manila launch, including officials from the Philippines’ Department of Energy and Thailand’s Department of Alternative Energy Development and Efficiency, named the same four gaps that determine whether any of this moves from reference document to purchase order: whether each country actually writes the guideline into its own procurement law, whether testing and certification are harmonised across borders, whether product performance claims are independently verified, and whether financing exists to cover the higher upfront cost of a more efficient unit.

What a Supplier or Building-Owner Procurement Team Should Check Before the Next Tender

For an air-conditioner manufacturer or distributor bidding into any ASEAN government contract, the guideline is now the template a tender is likely to borrow from, even where it isn’t yet law — reading it now, rather than after a bid specification cites it, is the cheaper option. For a private building owner or facilities team with no government customer, the more useful signal is anticipatory: a label tier that currently reads as premium, in markets where the mandatory floor sits well below 6.09 Wh/Wh CSPF, is the level regulators have already told the market they intend to make mandatory over time. Specifying to that tier now, on a retrofit or a new chiller plant, avoids re-specifying again when the floor moves.

Three of the five priorities the Manila panel named — harmonised testing, financing support and market surveillance — are things no single building owner controls. The one a procurement team can act on immediately is verification: asking a supplier for the independently tested CSPF rating behind a claimed label tier, not the label alone, before a contract is signed.

Key takeaways

• ACE published its recap of a regional Green Public Procurement guideline for air conditioners on November 2, 2026, built around a 6.09 Wh/Wh CSPF efficiency benchmark set as a 2025 target back in 2021.
• As of June 2026, only Singapore’s national standard actually requires that benchmark; Malaysia has gazetted it only for 2030, and elsewhere it remains a voluntary top-label tier rather than a sales floor.
• ASEAN room air-conditioner electricity demand is projected to rise roughly 115%, from 134 TWh in 2025 to 288 TWh in 2040, according to the 9th ASEAN Energy Outlook.
• The guideline scores bids on efficiency, refrigerant global warming potential and total life-cycle cost together, not purchase price alone, which is what gives a non-binding document real pull on a manufacturer’s product line.
• A building owner or supplier can act now by asking for independently verified CSPF ratings behind any claimed label tier, since that tier is the level regulators have signalled they intend to make mandatory.