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= BiDi Inverters =
 * Definition

 * Prevent [[https://en.wikipedia.org/wiki/Islanding|Islanding]] feeding power back into grid once grid is down.
   * "non-detection zone" (NDZ)
 * a grid-interactive inverter must match the voltage, frequency and phase of the power line it connects to.
 * Micro inverters - greater energy harvest, unparalleled reliability, flexible design, and easy installation
   * [[http://enphase.com|Enphase]] C250 Microinverter, supporting 480V three-phase installations, for both 72- and 60-cell modules.       
     * The choice of a 10- or 20-year warranty gives you financial flexibility and long-term peace of mind. 

== DIY Arduino micro inverter ==
 * http://www.arduino42.com/



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