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  2. Photovoltaic system performance - Wikipedia

    en.wikipedia.org/wiki/Photovoltaic_system...

    Sensors and monitoring systems are standardized in IEC 61724-1 [2] and classified into three levels of accuracy, denoted by the letters “A”, “B” or “C”, or by the labels “High accuracy”, “Medium accuracy” and “Basic accuracy”. In California, solar PV performance monitoring has been regulated by the State government.

  3. Photovoltaic system - Wikipedia

    en.wikipedia.org/wiki/Photovoltaic_system

    A photovoltaic system, also called a PV system or solar power system, is an electric power system designed to supply usable solar power by means of photovoltaics.It consists of an arrangement of several components, including solar panels to absorb and convert sunlight into electricity, a solar inverter to convert the output from direct to alternating current, as well as mounting, cabling, and ...

  4. Indoor positioning system - Wikipedia

    en.wikipedia.org/wiki/Indoor_positioning_system

    An indoor location tracking map on a mobile phone. An indoor positioning system (IPS) is a network of devices used to locate people or objects where GPS and other satellite technologies lack precision or fail entirely, such as inside multistory buildings, airports, alleys, parking garages, and underground locations. [1]

  5. Timelapse Garden Video Camera keeps tabs on plant ... - AOL

    www.aol.com/news/2009-03-30-timelapse-garden...

    For those of you looking to prove just how green your thumb really is, have a gander at the Timelapse Garden Video Camera. Offered up at the always intriguing Hammacher Schlemmer, this ...

  6. Wireless security camera - Wikipedia

    en.wikipedia.org/wiki/Wireless_security_camera

    Wireless security cameras function best when there is a clear line of sight between the camera(s) and the receiver. If digital wireless cameras are outdoors and have a clear line of sight, they typically have a range between 250 and 450 feet. If located indoors, the range can be limited to 100 to 150 feet.

  7. Photovoltaic power station - Wikipedia

    en.wikipedia.org/wiki/Photovoltaic_power_station

    The 40.5 MW Jännersdorf Solar Park in Prignitz, Germany. A photovoltaic power station, also known as a solar park, solar farm, or solar power plant, is a large-scale grid-connected photovoltaic power system (PV system) designed for the supply of merchant power.

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