Equipment and products that enable us to use renewable energy instead of fossil fuels and conventional electricity are highly beneficial. Examples include solar thermal systems, solar electric (photovoltaic) systems, and wind turbines. Other power generation equipment, such as fuel cells and some energy storage systems (like batteries) are included here because they help us accommodate varied energy sources so that we may eventually move beyond fossil-fuel dependence.
SMA America offers several Sunny Boy inverters designed for residential-scale photovoltaic applications. The company offers 700-, 4,000-, and 8,000-watt inverters with low frequency transformers, as well as a 3,000-watt inverter with a high frequency transformer. Transformerless designs accompany 5,000- and 11,000-watt inverters. A module-level, 240-watt micro inverter, applicable in shaded situations, eliminates the need for a trunk cable. These German-made inverters carry a 10-year warranty. SMA America also offers PV control and monitoring equipment.
GreenSpec lists inverters that convert the direct-current (DC) power produced by renewable energy systems into alternating-current (AC) power needed for most conventional appliances, and for feeding site-generated electricity into the power grid.
GreenSpec also lists power-conditioning equipment, controllers, batteries, and mounting equipment, as well as tracking systems that follow the path of the sun to maximize the amount of light hitting photovoltaic collectors.
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