The significant growth of renewable energy generation has made it a challenge to effectively integrate into markets across the US. The inherent variability of wind and solar generation has led to wide, and fast swings in wholesale electricity prices due to supply and demand imbalances. According to a report by the Lawrence Berkeley National Laboratory (LBNL), these imbalances could become much more frequent as renewable generation penetration continues to grow. Grid operators will need to find adequate ways to respond and neutralize this volatility.
Read more and the full LBNL report here:
http://eta-publications.lbl.gov/sites/default/files/report_pdf_0.pdf
