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MISO Probes LMR Failures in January Storm
TL;DR — MISO is investigating load-modifying resources that failed during the late January 2026 winter storm. This follows a parallel move by PJM to establish penalties for underperforming demand resources. With MISO load forecast to grow 35% by 2035, the scrutiny signals tighter future reliability rules.
What happened
On April 20, 2026, MISO launched a formal investigation into load-modifying resources (LMRs) that were unavailable during the late-January winter storm. The investigation's scope and the total MW of nonperforming resources are not yet public. Concurrently, PJM stakeholders are set to review a proposal on April 22 to establish penalties for underperforming load management and price-responsive demand resources.
Why it matters
LMRs are a critical reliability tool, contracted to reduce demand during system stress. Their failure during a winter event undermines resource adequacy assumptions and forces greater reliance on expensive, last-resort generation. MISO's probe, alongside PJM's penalty proposal, indicates a sector-wide shift toward enforcing performance guarantees for demand-side resources. This is especially critical as MISO expects system load to grow 35% by 2035, increasing strain on capacity margins.
Trading implication
Watch for rule changes that increase the cost and scrutiny of participating as an LMR. If penalties are adopted, the spread between capacity auction prices for traditional generation and demand-side resources could compress, as LMRs lose their "free option" value. The immediate risk is backwardation in forward capacity prices if the investigation reveals a material reliability shortfall. In ancillary services, expect upward pressure on Regulation and Synchronized Reserve prices as the ISO seeks more firm, fast-ramping capacity to backstop potentially unreliable demand response.
Chart
The chart shows a snapshot of significant forced and planned generation outages in MISO, highlighting the persistent background of resource unavailability the grid operator manages.
Takeaway
MISO's LMR probe is a warning shot: demand-side reliability is now a tradable risk.
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By LYU LLC DBA Grid AlphaTL;DR — MISO is investigating load-modifying resources that failed during the late January 2026 winter storm. This follows a parallel move by PJM to establish penalties for underperforming demand resources. With MISO load forecast to grow 35% by 2035, the scrutiny signals tighter future reliability rules.
What happened
On April 20, 2026, MISO launched a formal investigation into load-modifying resources (LMRs) that were unavailable during the late-January winter storm. The investigation's scope and the total MW of nonperforming resources are not yet public. Concurrently, PJM stakeholders are set to review a proposal on April 22 to establish penalties for underperforming load management and price-responsive demand resources.
Why it matters
LMRs are a critical reliability tool, contracted to reduce demand during system stress. Their failure during a winter event undermines resource adequacy assumptions and forces greater reliance on expensive, last-resort generation. MISO's probe, alongside PJM's penalty proposal, indicates a sector-wide shift toward enforcing performance guarantees for demand-side resources. This is especially critical as MISO expects system load to grow 35% by 2035, increasing strain on capacity margins.
Trading implication
Watch for rule changes that increase the cost and scrutiny of participating as an LMR. If penalties are adopted, the spread between capacity auction prices for traditional generation and demand-side resources could compress, as LMRs lose their "free option" value. The immediate risk is backwardation in forward capacity prices if the investigation reveals a material reliability shortfall. In ancillary services, expect upward pressure on Regulation and Synchronized Reserve prices as the ISO seeks more firm, fast-ramping capacity to backstop potentially unreliable demand response.
Chart
The chart shows a snapshot of significant forced and planned generation outages in MISO, highlighting the persistent background of resource unavailability the grid operator manages.
Takeaway
MISO's LMR probe is a warning shot: demand-side reliability is now a tradable risk.