Search
March 7, 2026

SPP Markets+

WER Architects Planners
SPP Markets+ Tariff a ‘Home Run’, Staff Says
FERC approved SPP’s tariff for Markets+ with minor modifications in what the RTO’s staff described as a “home run” during the Markets+ Participant Executive Committee’s meeting.
Powerex
Powerex Commits to Funding, Joining SPP’s Markets+

Powerex says it will fund the next phase of SPP’s Markets+ and “re-affirmed” its commitment to joining the Western real-time and day-ahead offering.

SPP
SPP Markets+ Tariff Wins FERC Approval

SPP reached a key milepost in its Western efforts when FERC conditionally approved its tariff for Markets+, a highly anticipated decision likely to ramp up the competition with CAISO’s Extended Day-Ahead Market.

CAISO
WEIM Q3 Prices Down Despite Increased Loads, CAISO DMM Finds
Prices in CAISO’s WEIM fell sharply in the third quarter of 2024 compared with a year earlier as declining gas costs outweighed the impact of increased summer loads, the DMM found.
© RTO Insider LLC
Benefits of Fast-start Pricing Questionable, CAISO DMM Says
Establishing a fast-start pricing mechanism in CAISO and the WEIM is complex and brings few benefits compared to other potential market enhancements, the ISO's Department of Market Monitoring said.
Bonneville Power Administration
In Letter to Senators, BPA Tempers Markets+ Leaning
The Bonneville Power Administration tamped down expectations that it is all in on SPP’s Markets+, clarifying in a recent letter to lawmakers representing Oregon and Washington that it’s still weighing the pros and cons of joining a day-ahead market.
© RTO Insider LLC
Nickell: SPP’s Culture Paves Way for its 2025 Success
New SPP CEO Lanny Nickell says the RTO's corporate culture is its "secret sauce" and the key to its success in 2025 as it tackles the grid of the future and expansion into the Western Interconnection.
© RTO Insider LLC
EDAM Won’t Eliminate WEIM-only Option, CAISO CEO Says

CAISO’s launch of the Extended Day-Ahead Market will not spell the end of a Western real-time-only offering from the ISO, according to CEO Elliot Mainzer.

© RTO Insider LLC
SPP Briefs: Week of Dec. 16, 2024
SPP’s Resource and Energy Adequacy Leadership Team has closed out 2024 by taking two actions related to the long-term planning reserve margin.
Kevin Dooley, CC BY-SA-2.0, via Wikimedia Commons
Western Market Developers Compare Approaches to GHGs
On the surface, CAISO’s Extended Day-Ahead Market and SPP’s Markets+ will take similar approaches to accounting for greenhouse gas emissions — but important differences remain.

Want more? Advanced Search