https://windfarmperformance.info/ 2026-09-27 daily 1.0 https://windfarmperformance.info/wind-turbine-curtailment-costs-us-clean-energy-output/ 2026-09-27 monthly 0.8 https://windfarmperformance.info/wind-turbine-capacity-factor-real-performance-metric/ 2026-09-27 monthly 0.8 https://windfarmperformance.info/category/Performance Analysis/ 2026-09-27 weekly 0.6