Royal Decree 1663/2000 - Photovoltaic installation connection to the grid

The Directorate General for Energy Policy and Mines drafted a standard contract and invoice for solar PV installations connected to low voltage grids. The Royal Decree (1663/2000) applies to photovoltaic installations of nominal power not more than 100 kVA and whose connection to the distribution grid is carried out in low voltage, i.e., not higher than 1 kV. If the nominal power of a photovoltaic installation to be connected to the distribution grid is more than 5 kW, the connection to the distribution grid will be triphasic, through three-phase inverters. This connection could be made through one or various single-phase inverters at each phase, with power less than 5 kW.

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