Role of Energy Storage with Renewable Electricity Generation

Michelle Kubik

Research output: NRELTechnical Report


Renewable energy sources, such as wind and solar, have vast potential to reduce dependence on fossil fuels and greenhouse gas emissions in the electric sector. Climate change concerns, state initiatives including renewable portfolio standards, and consumer efforts are resulting in increased deployments of both technologies. Both solar photovoltaics (PV) and wind energy have variable and uncertain (sometimes referred to as intermittent) output, which are unlike the dispatchable sources used for the majority of electricity generation in the United States. The variability of these sources has led to concerns regarding the reliability of an electric grid that derives a large fraction of its energy from these sources as well as the cost of reliably integrating large amounts of variable generation into the electric grid. In this report, we explore the role of energy storage in the electricity grid, focusing on the effects of large-scale deployment of variable renewable sources (primarily wind and solar energy).
Original languageAmerican English
Number of pages61
StatePublished - 2010

Bibliographical note

A supplement to this TP has been posted under NREL/PR-6A2-49396

NREL Publication Number

  • NREL/TP-6A2-47187


  • electric grids
  • energy analysis
  • energy costs
  • energy storage
  • NREL
  • PV
  • renewable electricity generation
  • renewable energy (RE)
  • solar energy
  • solar photovoltaics (PV)
  • variability
  • variable generation
  • wind energy


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