Title Royal Decree, on interconnection of photovoltaic installations to the low voltage grid. ResoluciĆ³n 31/5/01. 31/5/01 rule, defines the contract model and the invoice model for low voltage connected PV Acronym R.D. 1663/2000 Published Year Segment LV connected (> 5 kW /16 A per phase and < 1 kV) Energy Source PV Topic Electrical Installation Country ES Link Abstract