Library Program (Chatham-Kent): Chatham-Kent area residents can check out an Energy Meter from the Chatham-Kent Public Library and monitor energy consumption at home thanks to a partnership with Entegrus. Just plug the meter into an outlet and then plug the appliance (fridge, computer, window air conditioner, etc.) into the meter. The meter measures the instant energy increase or the average rate of energy use over time. Visit the Chatham-Kent Public Library website for more information.