US · MARKET DESIGN

United States

How the electricity market is organised in United States: the operators and regulator, the markets that apply here, and the developments changing them.

Markets that apply

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US nodal markets operated in this footprint.

Developments

4 tracked developments touching United States.

18 SEPT 2026

NV Energy signs agreement to join CAISO's Extended Day-Ahead Market (EDAM), targeting 2028 start

Implementation · ENERGY MARKETS · United States – Western Interconnection (Nevada, California)

15 SEPT 2026

PJM Market Monitor Urges FERC to Reject or Further Scrutinize MARA–Long Ridge Section 203 Deal Over BlackRock/Vanguard Affiliation

Regulatory review · ENERGY MARKETS · United States – PJM Interconnection (Ohio, AEP Zone)

11 SEPT 2026

PJM Files Interim Resource Adequacy Service (IRAS) Framework for Large Load Data Center Integration

Proposal · ADEQUACY & CAPACITY MARKETS · United States (PJM region)

11 SEPT 2026

PJM Proposes Reliability Standards Requiring Large Load Ride-Through During Grid Disturbances

Proposal · ADEQUACY & CAPACITY MARKETS · United States