Super Red

Super Red is the peak charging period used in EDCM (Extra High Voltage Distribution Charging Methodology). Unlike CDCM which has three time bands (Red, Amber, Green), EDCM uses a single "Super Red" period to identify peak demand times.

Super Red definition:

• Months: November, December, January, February (winter only)
• Days: Monday to Friday (excludes weekends)
• Hours: 4pm to 7pm (16:00-19:00)
• Excludes: Bank holidays and public holidays

Why "Super Red": The name distinguishes this from CDCM's standard "Red" band. While CDCM Red periods can span several hours across autumn/winter/spring, Super Red is a much narrower, more intense peak period focused on the winter evening peak when national electricity demand is highest.

Usage in EDCM: Super Red unit rates are charged on kWh consumption during these peak periods. These rates are typically the highest unit charges on an EHV site's bill, reflecting the network stress during winter evening peaks.

Relationship to Triads: The Super Red period aligns closely with when Triads historically occurred (the three highest national demand half-hours, always in winter 4-7pm). Although Triads no longer drive TNUoS charges post-TCR, the Super Red period reflects the same underlying network stress pattern.