What Changed
Available data: 2025-10-01 to 2026-10-13
Higher fossil fuel dispatch led to 15.9% higher carbon intensity
Strong solar and wind conditions boosted renewables by 1.7%
Lower than typical demand, down 18.6% from same-weekday average
Gentler evening ramp reduced grid flexibility requirements
Shallower midday valley, less solar impact
Fossil fuel reliance increased by 10.9%
Grid emissions rose 16% above typical same-weekday baseline.
Impact: Increased fossil fuel reliance for electricity generation
Peak demand was 19% below same-weekday average.
Impact: Weather and economic factors influenced consumption patterns
Evening ramp-up was 23% gentler than baseline.
Impact: Reduced stress on grid flexibility resources
Baseline Method: 4-week same-weekday median
Metrics are compared against the median of the same weekday from the prior 4 weeks. Using median (not mean) provides resistance to outliers from unusual grid events.
Example: Tuesday values compared to median of the previous 4 Tuesdays.