In recent years, the space cooling demands of the construction industry needed roughly 15% of the energy utilized for heating, generating about 1 billion metric tons of CO2 from electricity consumption. Meanwhile, space cooling is growing fast and is expected to grow even more in the coming decades. For the next three decades, cooling demand is predicted to grow at a rate of more than 3% every year, which would be eight times faster than heating demand in the past 30 years.
The rise in space air conditioning cooling demands is being driven by a number of causes. In South East Asia, air conditioner ownership rates vary from 75% to 85% among high-income urban families, compared to 5% or less in low-income rural households. Air conditioner ownership in the United States and Australia exceeds 90%, whereas it is less than 10% in India, Indonesia, and near to 20% in Brazil.
Despite the fact that 35% of the world’s population lives in countries where it is extremely hot nearly each and every day, just 15 percent of the world’s population owns an air conditioner. The rate of ownership is predicted to climb to 60 percent by 2050 and 70 % by 2070 as a result of improving living standards, climate change, attempts to improve access to essential energy services, and lowering prices of ductless air conditioning.
Prioritizing solutions focused on heating, cooling, or both will assist the building sector’s decarbonization. Ductless heat pump technology may be used in a wide range of climates and can be configured to offer both heating and cooling. Heat pumps are currently required for heating and cooling by one-third of the world’s population. Promoting the adoption of high efficiency HVAC equipment, as well as innovation, will be critical to meeting global decarbonization targets.
Despite their rising popularity, the vast majority of mini split heat pumps sold today are solely utilized for cooling. The average performance of an air conditioner and heat pump system would increase by more than 50% by 2030 and nearly double by the year 2070. Without such efficiency improvements in ductless systems, according to research, electricity consumption for cooling may almost triple by 2070.
An estimated 33% of homes globally have both heating and cooling requirements, however this figure may be as high as 78% in Europe, 56% in North America (the Unites States and Canada combined), and over 80% in China. It is essential in these locations that technology is developed to achieve decarbonization goals.
Government incentives provide an opportunity to encourage the adoption of more energy efficient ductless mini split system technology. The Canada Greener Homes Grant or the European Next Generation EU are promoting energy efficient air source heat pumps, the use of local resources, and battle against climate change, which is projected to boost the use of heat pumps and other solutions using renewable heat sources in new construction and renovation projects.