In the December 1, 2021 Resource Adequacy Subcommittee (RASC) meeting, stakeholders were invited to submit feedback to the Draft Annual Wind & solar Capacity Credit Report.
Comments are due by January 7, 2022
Wind and solar capacity credit should consider the correlation and coincidence of outages of renewable resources. Beware of just taking averages of past performance as low renewable output is detrimental to reliability.
The fact that ha MISO-wide winter wind drought occurred on January 28-30, 2020 means that one can occur again. Therefore, the wind capacity credit should be near zero. See MISO Operations Report from 3/24/2020 Slide 7
The Solar capacity should decrease over time as distributed solar shifts the MISO net peak to the evening. Each additional solar installation decreases the capacity value of all solar resources.
See MTEP19 Futures from 6/23/2019 PAC Slide 25 and Long-Term Regional Transmission Planning 12/5/2018 Slide 7