The Energy to Thrive Time to save. Reduce your costs by limiting or staggering energy use during the daily "on-peak" hours of 4 p.m. to 8 p.m. ELECTRIC COOPERATIVE Visit www.CORE.coop to learn more. CORE ..... The Energy to Thrive Time to save . Reduce your costs by limiting or staggering energy use during the daily " on - peak " hours of 4 p.m. to 8 p.m. ELECTRIC COOPERATIVE Visit www.CORE.coop to learn more . CORE .....