Countries of the solar water heater industry incentives
United States
Since 1978, the U.S. federal government began efforts to promote use of solar energy, the federal government for the installation of residential solar energy systems cost 50% subsidy. In 1980 the Ministry of Finance with an energy equipment tax abatements, any purchase of solar home systems, the purchase, installation and other expenses 40% of income tax relief, up to $ 4,000. The solar energy used in heating and cooling system, including housing, water and other equipment, but must meet the standards of new products, and to reach more than five years of its life, the way due in 1985. 1986 system tax credit of 15% in 1987 to 1991 was 12%, after 1992 began to purchase other household solar systems, the cost can be reduced to 10% income tax. In addition to the federal government, states also have their own separate way of tax cuts, tax cuts and individual states and the federal government tax incentives can be used simultaneously.
EU
In 2002, the EU adopted a building energy efficiency laws, the EU member states to reduce required for heating, air conditioning, hot water and lighting and other aspects of building energy consumption. The main contents of this Act include: evaluation of building energy consumption, new construction and existing buildings (greater than 1000 square meters) transformation of the minimum requirements of building energy consumption; in the construction, sale or lease of buildings required to provide building energy certification regular inspection of boilers and air conditioning systems. The EU requires EU member states in January 2006 to complete its building energy efficiency law-making.
Germany
Proposed market-based incentives program. Include: making domestic hot water solar collector area of ??200 square meters, the maximum grant is € 54.6; heating / domestic water heating dual-collector, the maximum area to 200 square meters of grants was 70.2 euros; area of ??more than 200 square meters of collector, the maximum area of ??200 square meters, depending on its type, grant 48 euros per square meter, 54.6 euros or 70.2 euros; to expand the original collector area for each additional one square meter subsidy € 48 . In addition to these grants in outside people in Germany can also use the German government \"old house renovation\" program, to 3.91% of the low-interest loans to the German government, limit the maximum amount of 50,000 euros, time can be up to 20 years.
Japan
Through the \"Sunshine\" to build solar greenhouse and domestic hot water supply system model systems, to promote the practical stage. In 1995 Japan enacted the \"Green Government Action Plan\", requiring new buildings to effective use of solar energy. Government to give low-interest loans for residential solar energy systems installed since October 1994, the loan interest rate of 3.9%, respectively, the repayment period of 5 years and 10 years; 1994, the total amount of lending to 87 billion yen.
Spain
Spain\\ s policy of mandatory installation of after a decree from the local to the national law of the process. In 1999, the city of Barcelona to implement solar Act, because the effect is significant, Spain and other European countries, many cities have followed suit. March 2006, Spain issued the \"National Building Technology Standards\", requires that all new buildings must have solar water heaters. The standard is to enforce national technical standards, the scope is all new construction and renovation of existing buildings, implemented in September 2006. According to the standard provides that all new construction and renovation of existing buildings and swimming pools must install solar water heaters, and solar hot water supply system to ensure a minimum rate of 30% to 70%, calculate the heat consumption of the current supply system only, not including heating system.
Australia
April 1, 2001, the Australian federal government began to implement a mandatory renewable energy targets, mandatory renewable energy in electricity consumption in a certain proportion, use of renewable energy receive renewable energy certificates, and certificates of transactions through receive subsidies. According to the requirements of the target, by 2010, renewable energy in electricity consumption will increase in the proportion of 2% renewable energy to 9500GWh, accounting for 10% of electricity consumption. Recommended the implementation of the federal government building greenhouse rating standards, the building is divided into 5 stars: 1 star building energy management is poor, 5 star building energy management excellence. The federal government requires new buildings must meet a certain level of building energy consumption can be approved under construction. Although the majority of standards and projects, energy-saving technologies for the use of which is not mandatory, but the solar water heater in the solar light a long time, high light intensity in most areas of Australia has become routine to reduce energy consumption, an important means to achieve building energy efficiency.
Israel
Back in 1980, Israel issued a decree to force installation of solar water heaters is the first national mandatory law. The Act requires that any height less than 27 meters of new housing must be installed s. After 20 years of development, Israel more than 80 percent of residential building roofs are covered with solar collectors, there is a huge, stable solar water heater market. Mainstream products are flat natural circulation water heater, has formed the scale of production capacity.