Current Status of Air Source Heat Pump Application in the World

The energy crisis is the fundamental driving factor for the development of air source heat pump products. In most developed countries in Europe and America, air source heat pump products such as air source water heaters have entered most households, including Australia, Britain, France, Germany, Northern Europe and Southern Europe, Singapore, and Malaysia.

Ⅰ. The development status of air source heat pumps in various countries in the world

The production of air source heat pumps in the United States soared from 82,000 sets/year in 1971 to 300,000 sets/year in 1976. In 1977, it jumped again to 500,000 sets/year. At this time, Japan came from behind and the annual output exceeded 500,000. set. It is understood that about 30% of the hot water equipment in the United States uses air source heat pump units.

According to the statistics of European heat pumps in 2000, only 480,000 air source heat pumps were used in Germany and Austria to provide hot water at home; 96% of Swiss hot water equipment used air source heat pump technology.

In Sweden, 28.5% of households currently use various types of heat pumps for heating and hot water, and another 10% of users use central heating systems. Due to structural reasons, the growth of air source heat pumps is faster than that of water sources or ground source heat pump.

In Finland, since winter temperatures can reach -40°C, water source heat pumps dominate. The same Scandinavian country Norway is mainly air source heat pumps with some ground source and water source heat pump systems.

These countries have one thing in common, that is, the government attaches great importance to energy conservation and environmental protection, and provides policy guidance and strong support, including through a certain degree of economic compensation to encourage manufacturers to produce and encourage users to use heat pump products.

In 2008, the European Parliament included air source heat pumps and other products into the scope of renewable energy utilization in accordance with prescribed methods.

After 2013, gas water heaters, gas heating stoves, electric water heaters and other products are not allowed to be used alone in principle.

Ⅱ. Air source heat pump subsidy policies in various countries

Relatively speaking, all countries have adopted subsidies for rating the overall energy-saving effects of households.

1. Sweden: If air source heat pumps are used to replace fuel oil and electric heating systems in Sweden before 2011, the government will reward 12,000 to 20,000 Swedish Krona (approximately US$1800 to US$3,000) per unit;

2. Australia: Australia provides a subsidy of 1,000 Australian dollars per unit (approximately 25% of the total price) to consumers who actively purchase air-source heat pump water heaters;

3. The United States: The US Energy Conservation Law stipulates that for the purchase of energy-saving equipment such as solar water heaters and air source heat pump water heaters, 30% of the residents' expenditures can be deducted from income tax;

4. The French government has stipulated that from 2006, power generation systems that use renewable energy and specific types of heat pump equipment can enjoy a 50% tax reduction or exemption for their products.

5. Europe: Some EU countries have stipulated that after 2013, it is not allowed to use electric or gas-powered water heaters alone. In other words, electricity or gas can only be used as auxiliary energy for water heaters, while air or solar energy will become the main energy source for water heaters. This EU policy will undoubtedly promote the production and research and development of air source heat pump water heaters in China.

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