Berlin, Germany --- (METERING.COM) --- May 10, 2013 - A total of 18 technical measures are available towards overcoming the voltage and congestion limitations that arise with integrating higher shares of photovoltaics (PVs) and other distributed energy resources (DER), according to a new report from the PV Grid initiative.

From these, the high priority solutions for LV grids in Europe are:

  • Curtailment of power feed-in at the point of common coupling (PCC)
  • Network reinforcement
  • Reactive power control by PV inverter Q(U) Q(P)
  • Active power control by PV inverter P(U)
  • Prosumer storage
  • On load tap changer for MV/LV transformer.

For MV grids, the high priority solutions are:

  • Network reinforcement
  • Reactive power control by PV inverter Q(U) Q(P)
  • Curtailment of power feed-in at PCC
  • Active power control by PV inverter P(U)
  • Network reconfiguration
  • SCADA + PV inverter control (Q and P)
  • Advanced voltage control for HV/MV transformer.

In the next stage of the review the regulatory and normative barriers that can hamper the implementation of these solutions are being analyzed, with a view to formulating European-wide regulatory and normative recommendations. These should be available for discussion later in the year.

This study forms part of the Initial Project Report of the PV Grid initiative – an EU supported project aimed to contribute to overcoming the bureaucratic barriers holding back the large scale integration of PV power into the electricity distribution systems across Europe.

The 30-month project was launched in May 2012 by a consortium coordinated by BSW-Solar in Germany.

The other main focus of the Initial Project Report is an assessment of national frameworks for PV development in 16 European countries.