Cooling energy use in buildings has doubled since 2000, making it the fastest growing end-use in buildings, led by a combination of warmer temperatures and increased activity.

Cooling Jpg

Key findings

Global air conditioner stock, 1990-2050


The world faces a 'cold crunch'

Without efficiency gains, space cooling energy use could more than double between now and 2040 due to increased activity and use of air conditioning. In the Efficient World Scenario, energy efficiency for cooling offsets much of the climate, activity and structure impacts to limit cooling energy growth between now and 2040 to 19%.

Air conditioner seasonal energy performance in the Sustainable Development Scenario, 1990-2030


Most people purchase new air conditioners that are two to three times less efficient than the best available model

Cooling is the fastest-growing end use in buildings, as its energy demand more than tripled between 1990 and 2018 to around 2 000 terawatt hours (TWh) of electricity. While much higher-efficiency air conditioners are currently available, most people purchase new air conditioners that are two to three times less efficient. To put cooling in line with the SDS, standards need to be put in place to improve performance by more than 50% by 2030. This will help cut energy use and emissions from space cooling and limit the capacity additions required to meet peak electricity demand.
Our work

The Kigali Cooling Efficiency Program (K-CEP) is a philanthropic collaboration launched in 2017 to support the Kigali Amendment of the Montreal Protocol and the transition to efficient, clean cooling solutions for all.

This site serves as a progress tracker for the Kigali Amendment of the Montreal Protocol.