Staff outlines decision framework: affordability vs. reliability, sustainability and flexibility

City staff presented a decision framework to evaluate future procurement options, identifying four core categories: affordability, resilience/reliability, sustainability and flexibility (formerly described as "custom programs"). For affordability the staff recommended benchmarking total cost per kilowatt‑hour against ComEd and peer municipalities; for reliability staff recommended tracking SADI (System Average Interruption Duration Index); sustainability metrics would include metric tons of carbon produced and counts of solar installations or EV chargers; and flexibility would be measured by uptake in programs like green energy certificates or demand‑response participation.