MISO Interconnection Queue Drops to 215 GW on Tax Incentive Phaseout
Amanda Durish Cook | Source: RTO Insider | Posted 09/20/2025
MISO’s generator interconnection queue has fallen to 215 GW as developers cut back on projects in response to the federal phaseout of renewable energy tax incentives, RTO leadership said Sept. 16 during Board Week.
AI generated summary
MISO's generator interconnection queue has decreased to 215 GW, reflecting a significant reduction in project proposals as developers respond to the impending phaseout of federal renewable energy tax incentives. The current queue includes 1,127 projects, down from over 300 GW earlier in 2025. MISO Vice President Aubrey Johnson noted that many projects initiated in 2023 may struggle to be operational by the 2028 deadline, leading to a trend of withdrawals as developers reassess the economic viability of their projects.
Despite the decline in the interconnection queue, MISO has processed 100 generator interconnection agreements totaling 17 GW from late 2024 to mid-2025. Historically, only about 20% of proposals reach this stage. MISO anticipates adding 10.9 GW in nameplate capacity by the end of 2025, while also noting that long-term emissions targets and renewable energy goals remain unchanged among its members. Additionally, MISO has identified ten generation projects for its expedited interconnection queue, primarily consisting of natural gas units, indicating a continued focus on efficient project integration.
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Source Link: https://www.rtoinsider.com/115081-miso-interconnection-queue-drops-to-215gw-tax-incentive-phaseout/
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