Provision of Grid Services by PV Plants with Integrated Battery Energy Storage System: Preprint

Research output: Contribution to conferencePaper


Battery energy storage systems (BESS), due to their tremendous range of uses and configurations, may assist PV integration in any number of ways by increasing power system flexibility. In this paper we describe results of a research project conducted by NREL and First Solar for developing controls and demonstrating many use cases for PV-BESS systems including (1) matching generation to loads through time shifting, reducing PV curtailment,; (2) promoting higher levels of PV penetrations by balancing the grid through ancillary services; (3) use of PV-BESS systems to provide wide-area stability services in the form of oscillations damping controls; and (r) use of gird forming BESS for enabling black start and islanded applications for PV-BESS systems. In the paper we will also describe the unique multi-MW test and validation platform developed at NREL for conducting research on fielded utility-scale PV-BESS systems. The platform consists of First Solar 0.43 MW PV power plant, NREL’s 1MW/1MW BESS, 2MW PV power supplies and 7MVA power electronic grid simulator interfaced with industrial plant controllers and power-hardware-in-the-loop (PHIL) capability.
Original languageAmerican English
Number of pages11
StatePublished - 2020
Event10th Solar and Storage Integration Workshop -
Duration: 5 Nov 20205 Nov 2020


Conference10th Solar and Storage Integration Workshop

NREL Publication Number

  • NREL/CP-5D00-78140


  • BESS
  • grid services
  • hybrid systems
  • PV


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