Final NERC/WECC Charge Rate for Assessment Year 2025

The California ISO has calculated the Final Rate for the North American Electric Reliability Corporation/Western Electricity Coordinating Council (NERC/WECC) charges for the assessment year 2025.

The final NERC/WECC charge rate for assessment year 2025 is provided below for scheduling coordinators’ information pursuant to Section 11.20.4 of ISO Tariff.

Item	Value	Unit
Total NERC/WECC Charge for Assessment Year 2025	13,958,491.02	$
Total NERC/WECC Metered Demand for Calendar Year 2023	209,498,742.66	MWh
Final NERC/WECC Charge Rate for Assessment Year 2025	0.066628042	$/MWh

The ISO will issue Final NERC/WECC charge invoices no later than Dec. 2, 2024.

Contact information

Please contact ISO Customer Service at 916-608-7320 with any questions.