OpportunityB/01
PPA economics under Markets+ reset.
Buyers locking PPAs in SPP today are pricing against a basis curve that Markets+ will reshape. The first-movers contracting flex around expected congestion relief capture the spread.
ISO/04 · Central US (Plains)
Southwest Power PoolSPP
Wind-rich, congestion-prone, expanding west.
Wind Installed
~36 GW
Queue
~150 GW
Markets+ Launch
Phased
TERMINAL · ISO/04
Operational intelligence frame
LIVE · 5-MIN REFRESH
LMP HEATMAP · $/MWh · 7D × 24H
MIN $14 · MAX $149MONTUEWEDTHUFRISATSUN
0006121823
SCALE:LOWMIDELEVATEDSCARCITY
QUEUE AGING · GW
0–1y67 GW
1–2y71 GW
2–3y98 GW
3–5y162 GW
5y+119 GW
Median age: 3.4y · trending +0.6y YoY
TOP CONSTRAINED NODES · 24H
#
Node
LMP
Cong.
Headroom
Δ
1
DOM.WARRENTON
$86
43
4%
+3.7
2
AEP.LIVINGSTON
$36
5
11%
-5.4
3
COMD.JOLIET
$55
47
38%
-4.7
4
BGE.CALVERT
$98
12
2%
+2.1
5
PEPCO.BRANDYWINE
$113
50
21%
+5.3
6
PJM.BLACKOAK
$104
76
18%
+0.6
FERC DOCKET STREAM
ER26-12842026-05-09
Capacity auction parameter update
TariffER26-11902026-05-02
Order 2023 queue reform compliance
QueueER26-11122026-04-24
RTEP transmission expansion proposal
TransmissionER26-10412026-04-18
Affected systems study protocol revision
ProcessEL26-08322026-04-09
Cost allocation complaint — load zone
LitigationILLUSTRATIVE TERMINAL VIEW · PRODUCTION FEEDS UNDER NDA · REFRESH 5 MIN
Read
SPP spans 14 states across the Great Plains. The Western Interconnection expansion (RTO West / Markets+) is reshaping the western grid, while wind curtailment and load pocket dynamics define the Eastern footprint.
STRUCTURAL METRICS
LIVE-TRACKED- Footprint
- 14 states
- Wind Capacity
- ~36 GW installed
- Peak Load
- ~57 GW
- Queue
- ~150+ GW (mostly wind/solar/storage)
- Western expansion
- Markets+ launching
Constraint Map
Where the headroom is gone.
N/01
ElevatedWestern Kansas / Oklahoma Panhandle
Wind curtailment + transmission expansion targets.
N/02
ElevatedNorth Dakota / South Dakota
Bakken oilfield load + wind interconnection congestion.
N/03
WatchTexas Panhandle (SPP, not ERCOT)
Solar + storage development at the seam.
Queue Dynamics
Interconnection truth.
DISIS process
Cluster-based, multi-year
Affected System Operator load
Growing across MISO seam
Network upgrade allocation
Material cost driver
Themes
What we are watching.
T/01
Markets+ expansion
SPP extending day-ahead market into the Western Interconnection.
T/02
Curtailment economics
Wind curtailment patterns drive PPA structuring and battery hybridization.
T/03
Coal retirement curve
Replacement capacity timing critical to reliability planning.
Rule Changes & Filings
Recent and pending.
Ongoing
Markets+ implementation
First multi-day-ahead market in the West outside CAISO.
Ongoing
Affected System Operator coordination
Reshapes seam-region project economics with MISO and WECC.
Positioning
Why SPP matters now.
SPP is the lowest-LCOE wind market in the country with one of the most consequential market expansions underway. Markets+ extends day-ahead optimization into the West and changes the basis story for every developer in Kansas, Oklahoma, and the Panhandle.
Buyer's Lens
How capital should read SPP.
Four angles we underwrite against, written for the people actually deploying.
RiskB/02
Curtailment is the silent IRR drain.
Western Kansas and the Oklahoma Panhandle remain curtailment-exposed. Hybridization economics are the only credible long-run mitigant — and the queue is finally pricing that in.
Where Capital WinsB/03
Battery hybridization on existing wind assets.
The brownfield wind fleet is the cheapest path to bankable storage adders in SPP. Repowering + storage hybridization is where the next leg of platform value compounds.
What We WatchB/04
Markets+ utility commitments and seam coordination.
Every utility that opts into Markets+ vs. EDAM tightens or loosens the western basis story. We track commitments and seam-coordination filings as primary signals.
Deliverables
What we ship on SPP.
- D/01SPP Wind Curtailment & Basis Atlas
- D/02Markets+ Commitment Tracker
- D/03Wind Repower + Storage Hybridization Pack
- D/04DISIS Cluster Status & Network Upgrade Allocation Map
Audience
Who uses this read.
- Wind & storage developers
- PPA buyers seeking low LCOE
- Western utilities entering Markets+
- Cross-seam infrastructure planners
Engage
Position capital before the SPP cycle moves again.