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Solar hot water is water heated using natural energy from the sun. Solar energy heats up large panels called thermal collectors. The energy is transferred through a fluid (often water) to a reservoir tank for storage and subsequent use. It is then used to heat water for commercial or domestic use and also as an energy input for heating and cooling devices and for industrial 'process heat' applications. Solar hot water systems are motivated by the desire to reduce energy consumption more specifically, to reduce a significant source of greenhouse gas emissions. In the case of Victoria, for example, converting from electric to solar hot water could save 20% of the state's total greenhouse gas emissions.〔(accessdate=4 Aug 2008 )〕 Despite an excellent solar resource, the penetration of solar water heaters in the Australian domestic market is only about 4% or 5%, with new dwellings accounting for most sales.〔Lovegrove, Keith and Dennis, Mike. (Solar thermal energy systems in Australia ) ''International Journal of Environmental Studies'', Vol. 63, No. 6, December 2006, p. 793.〕〔(Energy use in the Australian residential sector 1986-2020 ), Department of the Environment, Water, Heritage and the Arts, 2008〕 During the 1950s, Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO) carried out world leading research into flat plate solar water heaters.〔(Solar Hot Water Systems ), CSIROPedia, 2011〕 A solar water heater manufacturing industry was subsequently established in Australia and a large proportion of the manufactured product was exported. Four of the original companies are still in business and the manufacturing base has now expanded to 24 companies. Water heating is the largest single source of greenhouse gas emissions from the average Australian home, accounting for around 28 per cent of home energy use (excluding the family car). The Australian government estimates that installing a climate friendly hot water system can save a family $300 to $700 off electricity bills each year. (詳細はelectric heating system * The application and the installation process has taken place within the dates the rebate is offered * The household is a principal place of residence * The solar or heat pump hot water system is be eligible for minimum 20 Renewable Energy Certificates (RECs) * A licensed plumber or electrician is consulted for the installation Once the system is installed, the applicant has up to six months to submit the application form with the purchase receipt attached to it. The mandatory renewable energy target scheme was created by the Australian government to mandate energy retailers to the usage of renewables. Each solar heating system is accredited a certain number of RECs depending on how effective it is and in which of the four climate zones〔 〕 one resides. Each zone is associated with a number of post codes ranging across the whole continent. When the system is in use, you will receive your RECs that you are then able to sell to energy retailers. The market value of RECs is subject to variation.〔(Choice )〕 Depending on the current market conditions and the performance of the unit installed, this often amounts to $1000 or more. It is important to determine how many RECs the solar water heater is entitled to before installing, so that you know you are actually eligible of the rebate. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Solar hot water in Australia」の詳細全文を読む スポンサード リンク
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