MISO Cleared 9.1 GW of Demand Response: Can Cultivators Get Paid to Curtail?

What cleared in the 2026/27 auction

MISO's April 2026 Planning Resource Auction cleared sufficient capacity across all seasons [miso-2026-pra-release]. Utility Dive reported about 9 GW of demand response and 4.3 GW of behind-the-meter generation cleared for summer, roughly steady with 2025 [utility-dive-miso-dr]. Independent analysis of MISO's appendix slides put summer demand response at 9,099.5 MW with 100% of offered DR clearing [miso-dr-substack].

Load-modifying resources totaled about 13.4 GW for summer when DR and behind-the-meter generation are combined [miso-dr-substack]. That is a large share of MISO's summer stack, which means the market is paying for flexibility, not only new gas and solar.

Summer clearing prices reached $424.30/MW-day in Local Resource Zones 1-7 [miso-2026-pra-release]. When DR clears at the margin under scarcity pricing, participants earn that capacity value for committed megawatts.

How MISO demand response differs from utility peak rebates

Utility demand response programs (ComEd Peak Time Savings, Ameren incentives, etc.) pay for event-day curtailment on the distribution system. MISO DR is a wholesale capacity product tied to the Planning Resource Auction and emergency operations.

Revenue stacks can include:

Capacity payments for MW committed through the PRA at seasonal clearing prices [miso-2026-pra-release].

Energy payments when MISO dispatches during tight conditions.

Penalties if you fail to drop load to your committed level during a called event.

Cannabis operators sometimes confuse a utility rebate with ISO enrollment. They are separate contracts with separate meters and verification rules. See demand response programs for cannabis for the distinction.

Can a cultivator actually curtail?

Photoperiod is the constraint. Flower rooms need stable light hours; you cannot darken a room for four hours on ISO notice without risking crop quality. Vege rooms are somewhat more flexible but still scheduled.

Realistic curtailment levers for grows include:

HVAC and dehumidification staging. Pre-cool before an event window, raise setpoints temporarily, or shift reheat cycles if humidity allows.

Non-canopy loads. Packaging, offices, drying rooms not in active critical phase, water heating.

Staggered vege lighting if rooms are on independent timers and agronomy allows a brief offset.

Backup generation if permitted, registered, and compliant with air rules (complex; confirm with aggregator and local air district).

Enersponse and similar providers have documented cannabis participation models focused on flexible loads without breaking photoperiod [enersponse-cannabis-dr]. The agronomy team must sign off before the operations team commits megawatts.

Worked revenue example (illustrative)

Assume you commit 250 kW (0.25 MW) of verified curtailment for MISO summer capacity at the LRZ 1-7 clearing price of $424.30/MW-day [miso-2026-pra-release] for 92 days (June through August).

Line	Calculation	Result
Gross capacity revenue	0.25 × $424.30 × 92	~$9,759
Aggregator share (assume 30%)		~$6,831 net
Production risk	One failed event penalty	varies

Compare ~$6,800 net summer capacity revenue against the cost of lost yield if curtailment touches flower rooms. For many operators, the math works only on HVAC-heavy curtailment with no bud stress.

At annualized $126.19/MW-day [miso-2026-pra-release], winter DR payments are far smaller. Programs that require year-round availability pay less per season outside summer.

PJM contrast for dual-state operators

PJM also cleared about 8 GW of demand response at 100% in its 2026/27 auction with ELCC accreditation changes coming [enel-pjm-2026-27-auction]. If you operate in both MISO (Ameren Illinois) and PJM (ComEd), DR rules, baselines, and enrollment windows differ. Do not assume one aggregator contract covers both RTOs.

PJM is moving demand response toward 24/7 availability for future delivery years. MISO's seasonal structure may fit cultivators who can commit summer flex more easily than winter.

Enrollment mechanics and timing

PRA commitments bind for the planning year starting June 1 [miso-2026-pra-release]. Enrollment for 2026/27 largely closed at the April 2026 auction. For 2027/28:

Start conversations in Q1 with a curtailment service provider who understands food and agriculture loads.

Collect 12 months of interval data so baselines reflect true peak patterns, not a slow month.

Run a test curtailment during veg or maintenance to measure achievable MW without crop impact.

Legal and license review. Some states require contingency plans in operating procedures if power loss affects security or environmental controls.

Policy gap: market values DR, rules lag

Analysis of the 2026 PRA noted MISO cleared record DR while broader demand response policy reforms remained "in progress" without a firm timeline [miso-dr-substack]. Cultivators benefit from current prices but face uncertainty on accreditation rule changes similar to PJM's ELCC debates.

Track MISO stakeholder filings on Load Modifying Resources if DR is a material revenue line in your pro forma.

When DR is not worth it

Skip enrollment if:

Your load is flat with no flexible MW above security and environmental minimums.

You are on a utility tariff with aggressive demand ratchets and DR events could spike unintended peaks afterward.

Your team cannot respond to dispatch notices within program windows.

Supplier contract penalties for usage swings exceed DR revenue.

DR works best as a coordinated piece of peak demand management, not a side bet against your cultivator schedule.

Illustrative payment math for a 400 kW commitment

Suppose interval testing shows you can shed 0.4 MW for four hours on ten MISO dispatch days each summer without violating environmental setpoints.

Assumption	Modeled value
Committed MW	0.4
Dispatch events	10 per summer
Hours per event	4
Summer capacity clearing (LRZ 4-6 example)	$424.30/MW-day [miso-2026-pra-release]
Gross capacity credit (illustrative)	0.4 × $424.30 × 10 days ≈ $1,697

That gross figure ignores aggregator fees, penalties for under-performance, and the opportunity cost of slower dry rooms or delayed extraction batches. Run the same table against your actual chiller and dehumidifier minimum runtimes before signing a binding curtailment offer.

If DR pays less than the value of lost production during those hours, the correct lever is still peak shaving on the delivery bill, not market enrollment.

Questions to ask a curtailment service provider before the next PRA window

MISO cleared 100% of offered demand response in the 2026/27 auction [miso-2026-pra-release]. That does not guarantee your facility clears next year. Aggregators screen load shape before they bid [miso-dr-substack]. Bring these questions to the first call:

Baseline methodology. How will they calculate your baseline on flower-room days versus veg-only days? Cannabis baselines that ignore photoperiod can overstate curtailment and trigger penalties [enersponse-cannabis-dr].

Event notice window. How many minutes from dispatch to required load drop? HVAC pre-cooling strategies need lead time [enersponse-cannabis-dr].

Seasonal commitment. MISO PRA binds summer separately from fall and spring [miso-2026-pra-release]. Confirm whether you must offer winter availability or only summer MW.

Metering and verification. Does enrollment require interval metering upgrades? Who pays for telemetry?

Penalty structure. Under-performance during a called event can claw back capacity payments [utility-dive-miso-dr]. Get worked examples.

Stacking with utility programs. Ameren or Consumers peak rebates may conflict with wholesale DR if both claim the same MW drop [miso-2026-pra-release]. Ask explicitly.

Independent analysis put summer DR at 9,099.5 MW with load-modifying resources totaling about 13.4 GW including behind-the-meter generation [miso-dr-substack]. Your 0.25 MW is small to the market but large to your crop schedule. Run a tabletop exercise: simulate turning off one dehumidifier bank for two hours during a 95°F afternoon and have cultivation sign off before legal signs the DR contract.

PJM cleared about 8 GW of demand response in its 2026/27 auction with different accreditation rules coming [enel-pjm-2026-27-auction]. Dual-footprint operators need separate MISO and PJM enrollment paths, not one contract covering both RTOs.

Performance risk during real-time dispatch

Utility Dive reported MISO cleared roughly 9 GW of demand response and 4.3 GW of behind-the-meter generation for summer, about steady with 2025 [utility-dive-miso-dr]. Clearing in April does not guarantee payment in August. When MISO calls an event, you must drop to committed MW within the program window or face penalties that claw back capacity revenue [utility-dive-miso-dr] [miso-2026-pra-release].

Build a cultivation-specific runbook:

Assign one operator per event window with authority to stage HVAC and dehumidifiers [enersponse-cannabis-dr].

Pre-cool rooms 90 minutes before forecast tight hours when your aggregator sends day-ahead notice [enersponse-cannabis-dr].

Never curtail flower photoperiod without head grower sign-off documented in SOP [enersponse-cannabis-dr].

Log achieved kW drop from interval data within one hour after event end for dispute files [miso-dr-substack].

Summer capacity at $424.30/MW-day makes 0.3 MW worth pursuing on paper [miso-2026-pra-release]. One failed dispatch that costs more in penalties and crop stress than a month of capacity revenue means DR was the wrong tool. Compare against peak demand management on the delivery bill, which does not require ISO dispatch compliance [utility-dive-miso-dr].

Analysis of MISO appendix slides put total load-modifying resources at about 13.4 GW for summer when DR and behind-the-meter generation combine [miso-dr-substack]. Policy reforms for demand response accreditation remained in progress without a firm timeline [miso-dr-substack]. Track stakeholder filings if DR revenue is material in your pro forma; rules may shift before the 2027/28 PRA [miso-2026-pra-release]. Enrollment for 2027/28 largely closes at the April PRA; start aggregator conversations in Q1 with twelve months of interval data [miso-2026-pra-release].