Consultation · ENERGY MARKETS · EU (Core CCR: Germany, Austria, Belgium, Croatia, Czech Republic, France, Hungary, Ireland, Luxembourg, Netherlands, Poland, Romania, Slovakia, Slovenia)

02 OCT 2026

EPEX SPOT joins Single Day-Ahead Coupling (SDAC) in the Baltic states, completing MNA rollout

Go-live · ENERGY MARKETS · Baltic states (Lithuania, Latvia, Estonia)

02 OCT 2026

Portland General Electric officially begins participation in CAISO's Extended Day-Ahead Market

Go-live · ENERGY MARKETS · United States – Pacific Northwest / California (Western Interconnection)

30 SEPT 2026

NEMO Committee publishes Version 1.4 of the SDAC Fallback Manual, updating decoupling and fallback procedures

Implementation · ENERGY MARKETS · EU

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)

09 SEPT 2026

JAO Publishes Day-Ahead Explicit Auction Rules for GB-Belgian Nemo Link Interconnector (Effective 1 September 2026)

Go-live · ENERGY MARKETS · GB-Belgium border (Nemo Link interconnector)

09 SEPT 2026

NEMOs and TSOs Advance Redesign of SDAC Full Decoupling Fallback Mechanism

Consultation · ENERGY MARKETS · EU

09 SEPT 2026

TenneT reports on long-term methodologies and grid projects to resolve loop-flow-driven Article 16(8) derogation in the Netherlands

Implementation · ENERGY MARKETS · Netherlands (ACM regulator); Core Capacity Calculation Region

08 SEPT 2026

URE reminds Polish RES producers to correct August 2026 certificate-of-origin applications after 7-hour negative TGE prices on 23 August

Market impact · GUARANTEES OF ORIGIN · Poland

03 SEPT 2026

OMIE launches daily day-ahead price spread index for Iberian market

Go-live · ENERGY MARKETS · Iberia (Spain and Portugal; OMIE/MIBEL day-ahead market)

02 SEPT 2026

CRE confirms approval of amended Italy North day-ahead fallback procedures and Shadow Allocation Rules; procedural dates now on record

Decision · ENERGY MARKETS · Italy North capacity calculation region (CRE/France approving; regional NRAs via INERRF)

02 SEPT 2026

TenneT files long-term-solution report under 2026 loop-flow derogation, flags need for 2027 derogation

Implementation · ENERGY MARKETS · Netherlands (TenneT / Core CCR)