62 Air Conditioner Statistics on Adoption, Demand and Efficiency

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Air conditioner statistics show a rapidly expanding cooling system: adoption varies sharply by geography, while electricity demand, installed capacity and emissions are all moving upward. The figures below distinguish observed surveys and inventories from estimates and forecasts, and keep household access, equipment stock, cooling capacity and electricity use separate.

Key Air Conditioner Statistics

The most broadly useful figures include:

  • In 2020, 88% of U.S. households used air conditioning, based on the 2020 Residential Energy Consumption Survey.
  • In 2020, two-thirds of U.S. households used central air conditioning or a central heat pump as their main cooling equipment.
  • In the 2018 IEA selected-country comparison, more than 90% of households in the United States and Australia had air-conditioning access.
  • In the same 2018-era comparison, air-conditioner ownership was below 10% of households in India and Indonesia.
  • In the 2018-era global assessment, 35% of the global population lived in places that were hot every day, while only around 15% of that population owned an air conditioner.
  • The IEA projects that 60% of people living in persistently hot areas will own an air conditioner by 2050.
  • The global air-conditioner stock could reach 7 billion units by 2070 under the IEA projection.
  • In 2018, air conditioners and electric fans accounted for about 10% of global electricity consumption.
  • Global air-conditioner shipments reached 200 million units worldwide in 2024.
  • Global electricity demand for space cooling reached around 2,900 TWh in 2025, according to an IEA estimate.
  • In 2025, cooling contributed 1,400 GW of peak electricity demand across markets covered by the IEA analysis.
  • Southeast Asia had about 40 million installed air-conditioning units in 2017, with the stock projected to reach 300 million in 2040.
  • Up to 85% of Chinese households are projected to own at least one air conditioner by 2030.
  • Global cooled building floor area was 105 billion square metres in 2022, projected to reach 250 billion square metres by 2050.
  • Installed global space-cooling equipment capacity was 850 GW in 2022, projected to reach 2,700 GW by 2050.
  • The IEA efficient-cooling scenario projects 45% lower cooling-energy demand by 2050 than its reference case.
  • In India, 3-Star air conditioners represented 61% of units produced in 2023, compared with 23% for 5-Star models.
  • U.S. residential stationary air-conditioning emissions reached 41.1 MMT CO2e in 2021, compared with 1.2 MMT CO2e in 1990.

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How Common Air Conditioning Is in U.S. Households

The U.S. Energy Information Administration’s 2020 RECS measured air-conditioning use across 18,496 responding households. The survey found that 88% of U.S. households used air conditioning, and two-thirds used central air conditioning or a central heat pump as their main cooling equipment. EIA, “Nearly 90% of U.S. households used air conditioning in 2020”

Regional adoption was uneven in the same 2020 survey:

U.S. Census region, 2020 Households using air conditioning Measure
Midwest 92% Survey share
South 93% Survey share
West 73% Survey share
Northeast using individual units 50% Primary equipment pattern

The Northeast figure describes the share primarily using individual air-conditioning units, so it is not a direct equivalent to the regional adoption percentages. The RECS sample and survey definitions should be retained when comparing these results.

Home age also corresponded with different measured adoption levels. Air conditioning was used by 83% of U.S. homes built before 1950 and 93% of homes built from 2010 through 2020 in the 2020 RECS.

Global Air-Conditioner Access and Long-Term Stock

The IEA’s 2018 selected-country comparison illustrates the global access gap. More than 90% of households in the United States and Australia had air-conditioning access, while ownership was below 10% in India and Indonesia; Brazil was close to 20%.

These are IEA estimates in selected comparisons, not one harmonized household survey. IEA, “Is cooling the future of heating?”

Place or population Air-conditioning measure Period or horizon
United States and Australia More than 90% of households with access 2018 comparison
India and Indonesia Below 10% household ownership 2018 comparison
Brazil Close to 20% household ownership 2018 comparison
Persistently hot global population Around 15% owned an air conditioner 2018-era assessment
Persistently hot global population 60% projected ownership 2050
Persistently hot global population 70% projected ownership 2070

The same IEA assessment estimated that 35% of the global population lived in places that were hot every day. It projected that the share of people in persistently hot areas who own an air conditioner could reach 60% by 2050 and 70% by 2070, with the global stock potentially reaching 7 billion units by 2070.

Heating and cooling needs overlap in many markets. An estimated 33% of households worldwide need both space heating and space cooling, compared with up to 78% of households in Europe and 56% in North America; these are scenario or indicator estimates rather than a single global survey.

Air Conditioning Electricity Demand and Grid Impact

In 2018, air conditioners and electric fans accounted for about one-fifth of electricity used in buildings worldwide and about 10% of global electricity consumption. Both figures are IEA estimates, and they describe electricity use rather than the number of machines installed. IEA, “The Future of Cooling”

Recent IEA estimates show continued expansion:

In India, each 1°C increase was associated with more than 7 GW of additional peak demand in the IEA’s 2024 analysis. This is an association in an IEA estimate, not a controlled causal estimate. IEA, “How can energy efficiency alleviate rising heatwave-driven electricity demand?”

Regional Air Conditioner Market Growth in Southeast Asia and China

Southeast Asia had about 40 million installed air-conditioning units in 2017 under the IEA stated-policies trajectory, while only 15% of households had an air conditioner in the regional assessment. The stock is projected to reach 300 million units in 2040, with Indonesia projected to contain half of Southeast Asia’s 2040 units. IEA, “The Future of cooling in Southeast Asia”

ASEAN space-cooling electricity demand could reach 300 TWh in 2040. This is a forecast for ASEAN Member States and is not interchangeable with installed-unit stock. IEA, “Executive summary – Roadmap towards Sustainable and Energy-Efficient Space Cooling in the Association of Southeast Asian Nations”

China’s indicators point to a large installed base and continued market growth:

Global cooling is expanding through both larger cooled spaces and more equipment. The IEA estimates that cooled building floor area reached 105 billion square metres in 2022 and projects 250 billion square metres by 2050. IEA, “Space cooling”

Global measure 2022 2050 projection
Cooled building floor area 105 billion m² 250 billion m²
Households with air conditioners 36% 60% in IEA net-zero pathway
Installed space-cooling capacity 850 GW 2,700 GW
Space cooling share of final electricity consumption 9% 5% in IEA net-zero pathway

The table compares IEA estimates with pathway forecasts; the projected lower electricity share does not mean cooling activity or capacity declines. China’s cooling capacity is projected to rise from 2,600 GWc in 2017 to about 5,407 GWc in 2030, where GWc means cooling output capacity.

Without stronger policy, China’s space-cooling electricity use is projected to reach just under 750 TWh by 2030, almost 90% above 2017. IEA, “The Future of Cooling in China”

Africa’s electricity demand for cooling could increase 400% during the 2020s. This is an IEA forecast and should not be read as a measured historical change. IEA, “How does the hottest year on record drive urgency for efficiency measures?”

Air Conditioner Efficiency, Operating Costs and Scenario Savings

The IEA estimated that the average efficiency of air conditioners sold in 2018 was less than half the efficiency typically available on store shelves. Its efficient-cooling scenario doubles average efficiency, reduces cooling-energy demand by 45% versus the reference case by 2050, and reduces cumulative investment and running costs by USD 3 trillion through 2050.

Average cooling-energy costs are projected to be almost 50% lower in that scenario. IEA, “The Future of Cooling”

India’s 2023 production mix provides a concrete efficiency snapshot: 3-Star air conditioners represented 61% of units produced, while 5-Star models represented 23%. The IEA net-zero scenario foresees minimum air-conditioner performance levels of 5–6.5 W/W in 2030. IEA, “How can energy efficiency alleviate rising heatwave-driven electricity demand?”

A Thailand example described a USD 350 air conditioner rated at 6 W/W as costing the same as a 3 W/W unit. The higher-efficiency example could save up to USD 2,000 over its lifetime versus the 3 W/W example; this is a scenario example, not a universal household cost estimate. IEA, “How does the hottest year on record drive urgency for efficiency measures?”

China’s efficient-cooling scenario saves 205 TWh in 2030 through more efficient equipment versus baseline. IEA, “The Future of Cooling in China”

Refrigerant and Climate Emissions from Air Conditioning

U.S. inventory figures separate residential stationary air conditioning, commercial stationary air conditioning and the broader refrigeration/air-conditioning sector. Residential stationary-air-conditioning emissions were 1.2 MMT CO2e in 1990 and 41.1 MMT CO2e in 2021, while commercial stationary-air-conditioning emissions were 7.3 MMT CO2e in 2021. EPA, “Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2021 – Industrial Processes and Product Use”

The broader U.S. refrigeration and air-conditioning sector emitted 139.1 MMT CO2e in 2021. That total covers multiple end uses and is therefore not directly comparable with the residential or commercial stationary-air-conditioning categories.

At the global level, UNEP and the IEA projected that direct and indirect cooling emissions could rise 90% without changes in efficiency and refrigerants. The projection comes from the 2020 cooling-emissions policy synthesis and concerns the global cooling sector, not only household air conditioners. UNEP, “Cooling Emissions and Policy Synthesis Report: Benefits of cooling efficiency and the Kigali Amendment”

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