NYISO Dynamic Reserves
The New York Independent System Operator is replacing static reserve requirements with a dynamic framework that responds in real-time to grid conditions. This introduces nodal reserve pricing (LMORP) — creating locational revenue opportunities for demand-response assets at constrained NYC nodes.
Project Timeline
- 21
2021
RECA Study — identifies limitations of static reserve regions
- 24
2024
NYISO refines design: ORCC, DAM prototyping, intermittency balancing merged
- 25
2025
Federal regulatory submission to FERC (planned)
- 27
2027
Target implementation date (pending regulatory acceptance)
LMORP Pricing Formula
LMORP Formula
| Symbol | Name | Unit | Definition |
|---|---|---|---|
| γ_{i,p} | LMORP | $/MWh | Locational Marginal Operating Reserve Price for Operating Reserve product p at bus i. Reflects the locational value of a resource's reserve schedule including a congestion component. |
| λ_p^R | System Marginal Reserve Price | $/MWh | The NYCA-wide system marginal Operating Reserve price for product p. This is the baseline price before locational adjustments. |
| GF_{ik} | Generation Shift Factor | dimensionless | Shift factor for bus i on Locational Operating Reserve Constraint (LORC) k. Models the specific relief an individual resource provides on a transmission constraint. |
| μ_k | LORC Shadow Price | $/MWh | Shadow price of Locational Operating Reserve Constraint k. A positive shadow price indicates the constraint is binding — resources at relieving nodes receive a premium. |
Resources at nodes that relieve a binding Locational Operating Reserve Constraint (positive GF × positive μ) receive an LMORP below the NYCA system price — meaning the locational reserve is cheaper. Resources at nodes that tighten a constraint receive an LMORP above the system price — a premium signal for investment in that location.
Reserve Requirements
Locational Static Floors
⚡ TSA: Static floor set to 0 MW during Thunderstorm Alert events; dynamic constraints take over
NYCA Dynamic Requirements (no static floor)
10-Minute Spin
½ × largest supply contingency in the NYCA
Fully dynamic — no static floor. Responds in real-time to contingency changes.
10-Minute Total
Largest supply contingency in the NYCA
Fully dynamic. Replaces static NYCA total reserve requirement.
30-Minute Total
Largest contingency + 2nd largest contingency + max(0, Forecast Load − Scheduled Load)
Integrates DAM Forecast Load to ensure sufficient energy exists to serve peak forecast demand. Eliminates need for separate Forecast Pass commitments.
NYC Borough Opportunities
Total addressable: 500 MWManhattan
NYC-ZONE-J
Commercial building HVAC demand response aggregation
Deploy in ~18 months · 3,200 EV ports (est.)
Highest LMORP congestion premium in NYC due to load density and transmission constraints. Commercial building DR (HVAC curtailment, battery storage) is fastest to enroll and can ramp within 10 minutes. Midtown and Lower Manhattan office stock offers large aggregated MW.
Brooklyn
NYC-ZONE-J
Mixed portfolio: industrial waterfront load + EV fleet aggregation
Deploy in ~20 months · 3,800 EV ports (est.)
Growing EV adoption in South Brooklyn combined with industrial waterfront operations (food cold-storage, logistics) creates a mixed DR portfolio. Navy Yard and Sunset Park industrial zones offer fast-ramping interruptible loads with high coincident peak exposure.
Queens
NYC-ZONE-J
Airport ground service vehicle V2G fleet + taxi/rideshare charging aggregation
Deploy in ~24 months · 4,100 EV ports (est.)
JFK and LaGuardia electrification programmes create the largest captive EV fleet opportunity in NYC. V2G-capable charging at airport depots could provide significant 10-minute reserve. Adjacent to LI interface — positions well for cross-constraint LORC value.
Bronx
NYC-ZONE-J
Food distribution and cold-storage interruptible load
Deploy in ~16 months · 2,200 EV ports (est.)
Hunts Point food distribution hub offers fast-ramping refrigeration loads capable of 10-minute response. Shortest deployment timeline due to existing demand response programme participation. Constrained NYC-I LORC exposure creates meaningful shadow price opportunity.
Staten Island
NYC-ZONE-J
Ferry fleet V2G + residential EV smart-charging aggregation
Deploy in ~28 months · 1,100 EV ports (est.)
Staten Island Ferry electrification provides a single large-block controllable load. Residential EV aggregation is growing but requires Virtual Power Plant (VPP) enrolment infrastructure. Longest deployment timeline; lower MW potential but strategically positions for post-2027 market growth.
Proposed Tariff Revisions
Adds definition for LMORP (Locational Marginal Operating Reserve Price).
Eliminates 'Scarcity Reserve Region' definitions — superseded by dynamic framework.
Establishes rules for dynamic requirements, nodal reserve pricing, and sunsets special pricing rules for Long Island.
Revises LBMP calculations to include 30-minute Operating Reserve Constraints in the congestion component. Shadow prices of reserve constraints now affect energy (LBMP) pricing.
Introduces the Forecast Reserve Charge (recovers DAM Forecast Reserve costs) and the Operating Reserve Constraint Charge / ORCC (addresses TCC shortfalls caused by dynamic constraints).
Excludes Dynamic Reserve constraints from Centralized TCC Auctions and the DAM Constraint Residual definition.
Incorporates the ORCC into Net Congestion Rents settlement calculations.