PJM LMP Merchant Curve: Hub & Nodal Forward Power Prices

PJM is the largest organized wholesale power market in the United States, serving 65+ million people across 13 states and DC. LMP prices at PJM hubs and delivery nodes are shaped by natural gas dynamics in the Mid-Atlantic, coal retirement trajectories in the Midwest, offshore wind buildout on the Eastern coast, and the growing capacity demand from data centers in Northern Virginia.

65M+

People Served

13 + DC

States in Footprint

~180 GW

Installed Capacity

900+

Delivery Nodes

PJM Hubs and Nodes Covered

Noreva publishes forward LMP curves at the benchmark trading hubs and the key delivery nodes that matter for project finance and PPA structuring.

PJM Hub and Node Coverage

Hub / Node

Region

Relevance

Western Hub

APS / Ohio interface

Primary PJM benchmark for power trading and project finance reference curves

Eastern Hub

PSEG / PECO region

Benchmark for Mid-Atlantic generation and offshore wind delivery zone

Northern Hub

Coal country / Allegheny

Sensitive to coal retirement schedules and Appalachian gas basis

AEP Dayton Hub

Midwest / Ohio

Key hub for Midwest load-serving entities and renewable offtake contracts

Illinois Hub

PJM / MISO interface

Interface hub capturing congestion between PJM and MISO

NI Hub

Northern Illinois

Used for Chicago-area load and utility procurement curves

Key PJM LMP Price Drivers

Forward LMP at any PJM hub reflects a combination of fuel cost, supply-side structural changes, demand growth, and market design. The table below maps each driver to its mechanism and directional effect on prices.

PJM Price Driver Reference

Driver

Category

Mechanism

Natural Gas Prices

Fuel / Dispatch

Gas sets the marginal cost in more than 60% of peak hours across the PJM footprint, making Henry Hub and local basis the primary short-run LMP signal. See: PJM gas bid fever

Coal Retirement

Supply

Each GW of coal capacity retired tightens reserve margin and increases gas dispatch frequency, lifting the floor on off-peak prices. See: why keeping coal online is expensive

Offshore Wind (PJM East)

Supply

Atlantic coast offshore wind projects are expected to suppress daytime and shoulder prices in Eastern Hub and PSEG zones beginning 2027 and beyond

Data Center Load (NoVA)

Demand

Northern Virginia remains the fastest-growing load pocket in PJM, adding structural demand that supports prices and tightens reserve margins. See: data center power strategies

Capacity Market (RPM)

Market Structure

Base Residual Auction (BRA) clearing prices at or near CONE shape investment signals across the footprint. See: PJM capacity prices and grid stress

Transmission Congestion

Basis

AP, PENELEC, and PSEG interfaces create persistent nodal basis differentials. Congestion is a material revenue risk for merchant projects relying on hub-level curves

Who Uses PJM LMP Merchant Curves

Noreva’s PJM forward price curves are used across the project lifecycle, from early-stage development through financing, offtake structuring, and portfolio optimization.

Project Development

Gas, solar, and wind developers use hub LMP curves to screen site economics, estimate merchant revenue, and identify the delivery node with the most favorable basis profile. Project finance and PJM auction repercussions

Battery Storage

Storage developers stack capacity revenue from RPM with energy price spread forecasts to underwrite round-trip economics. Nodal delivery shapes and peak/off-peak differentials determine charge/discharge value. Battery standards and capacity dynamics

Lender Due Diligence

Project finance lenders require independent merchant curve assumptions for P50 and P90 revenue cases. Noreva’s scenario analysis covers base, low, and high fuel price trajectories with documented methodology for credit committee review.

PPA Structuring

Corporate buyers and offtakers use nodal basis forecasts to price the shape and location risk embedded in PJM PPAs. Hub-to-node differentials at PSEG, PECO, and APS delivery points can materially shift contract economics.

How Noreva Builds PJM Merchant Curves

Each curve layer is built on a consistent dispatch model, then adjusted for PJM-specific market design features and nodal transmission topology.

Forward LMPs are derived from a fundamental dispatch model incorporating gas heat rates, coal retirement schedules, renewable build assumptions, and load growth by zone. The model produces hourly cleared price distributions at each hub.

RPM Base Residual Auction outcomes feed into the dispatch model as a constraint on retirement timing and new entry. BRA clearing prices at CONE influence which resources clear and which exit, shaping the medium-term supply stack. See: why PJM capacity prices remain constrained

Hub-to-node basis is modeled using historical congestion patterns, planned transmission upgrades, and interface flow projections. Noreva publishes basis forecasts at AP, PENELEC, PSEG, PECO, and APS delivery points to support nodal PPA analysis.

Each published curve includes a base case plus low and high scenarios across fuel prices, demand growth, and renewable build rates. Scenarios are structured to align with lender P-case requirements and investment committee sensitivities.

PJM RPM Capacity Auction Analysis

PJM’s Reliability Pricing Model runs annual Base Residual Auctions that set capacity prices three years forward. Capacity revenue is a critical revenue stack component for peakers, storage, and dispatchable generators.

For dedicated PJM capacity auction data and forecasts, see Noreva’s PJM Capacity product.

High clearing prices signal tightening supply and support generator retention, which raises the floor on LMP in tight conditions. See PJM capacity prices and grid stress.

Supplemental auctions for incremental auction commitments reveal residual capacity gaps that affect the effective reserve margin. See why the 3IA prices cleared so low.

PJM’s variable resource requirement curve sets the auction demand function; steeper curves at higher CONE increase auction price sensitivity. See determining demand in a PJM auction.

Effective Load Carrying Capability accreditation reduces capacity credit for intermittent resources, affecting the competitive position of wind, solar, and storage in BRA. See the ELCC crunch and asset valuation.

FERC backstop mechanisms limit exit of at-risk baseload, holding supply in market longer than economics alone would support. See PJM backstop bonanza.

Other Power Market Hubs

PJM is the largest organized market in North America, but its price formation only makes sense against its neighbours. The markets below share seams, fuel basis, and policy drivers with the PJM footprint.

California

CAISO LMP Merchant Curve

PJM and CAISO sit at opposite ends of the renewable penetration curve. CAISO shows what midday suppression and storage-led evening ramps do to a capacity stack, which is the trajectory PJM’s solar build is heading toward.

Texas

ERCOT LMP Merchant Curve

ERCOT recovers fixed costs through energy and ancillary revenue alone, with no capacity auction. Setting it against RPM shows how much of a peaker’s revenue certainty comes from market design rather than fundamentals.

New England

ISO-NE LMP Merchant Curve

New England shares PJM’s eastern gas constraints but with far less pipeline redundancy. ISO-NE winters preview how PJM’s Mid-Atlantic zones would price under a sustained fuel squeeze.

Midwest / South

MISO LMP Merchant Curve

The MISO-PJM seam runs from Michigan to Kentucky and binds regularly. Illinois Hub and NI Hub prices depend directly on MISO dispatch, making MISO basis a live input to any PJM western-zone forecast.

New York

NYISO LMP Merchant Curve

NYISO Zone J and PJM Eastern Hub are coupled through the AC interfaces, and both are absorbing offshore wind on similar timelines. Their downstate price paths increasingly move together.

Southwest

SPP LMP Merchant Curve

SPP’s wind-dominated stack shows what happens to off-peak pricing when renewable penetration outruns transmission. PJM’s western zones face a milder version of the same congestion arithmetic.

Frequently Asked Questions: PJM LMP Merchant Curve

Noreva publishes forward LMP curves at six PJM hubs: Western Hub (the primary benchmark), Eastern Hub (PSEG/PECO region), Northern Hub (Allegheny/coal country), AEP Dayton Hub (Midwest), Illinois Hub (PJM/MISO interface), and NI Hub. For project-specific delivery nodes, Noreva also produces nodal basis forecasts at AP, PENELEC, PSEG, PECO, and APS delivery points on request. Coverage spans the full geographic range of PJM’s 13-state footprint plus DC.

PJM’s Reliability Pricing Model runs Base Residual Auctions approximately three years ahead of the delivery year, committing generation to remain available. High BRA clearing prices retain capacity that would otherwise retire on energy margins alone, keeping the supply stack fuller and moderating LMP upside in tight years. Conversely, low auction prices allow retirements that tighten reserve margins and lift energy price volatility over the forecast horizon. Noreva integrates current BRA results and forward auction expectations directly into the dispatch model that underlies the LMP curves. See: why PJM capacity prices remain constrained and how high capacity prices reveal grid stress.

Western Hub is the primary financial settlement point for PJM power trading and the reference point most commonly used in project finance merchant curve assumptions. It sits at the APS/Ohio interface and reflects the cleared system price net of the more severe congestion that affects eastern and interface nodes. When developers or lenders refer to a “PJM merchant curve,” they typically mean the Western Hub forward curve. Noreva uses Western Hub as the base reference and derives other hub and nodal forecasts as basis differentials from Western Hub, enabling consistent multi-node analysis within a single model framework.

Northern Virginia has become the dominant global hub for data center infrastructure, and PJM load growth in that zone has accelerated materially in recent years. This load growth tightens reserve margins in the Dominion zone, increases peak demand forecasts used in the BRA VRR curve, and puts upward pressure on both capacity and energy prices. The structural nature of data center load, which runs around the clock at high utilization factors, shifts the demand curve in off-peak hours as well as peak. For broader context on how hyperscalers and colocation operators are responding to the power constraint, see: how data center builders are solving the power problem and infrastructure cost allocation.

See the market. Price the future. 

See the market. Price the future. 

Access Noreva’s PJM LMP Merchant Curves