Evacuated tube thermal solar collectors have been in use for more than 20 years, but have been too expensive for consumers. But in recent years the production volume of evacuated tubes has exploded, resulting in greatly lower manufacturing and material costs. The result is that evacuated tubes are now cheaper and they are set to become the default choice for thermal solar applications worldwide.
Solar energy can be classified into two categories Thermal Energy and Light Energy (Photo-voltaic cells (PV) or Solar cells). Thermal energy obtained from the sun can be used for a number of applications producing hot water, space heating and even cooling via use of absorption chilling technology.
Solar energy can be classified into two categories Thermal Energy and Light Energy (Photo-voltaic cells (PV) or Solar cells). |