In order to understand how long vaccine refrigerators would need to stay cold without electricity, therefore not spoiling vaccines, an international management consulting firm working with a foundation wanted to study blackout patterns in Nigeria, Uganda and India. How often power does power go in a certain region? And, How long does it stay off?
Photo: Connie (CC BY 2.0) https://flic.kr/p/kSmxeM
Please provide us with a few details and we'll give you the full case study: