Hardware, apps, and surveys at scale: insights from measuring grid reliability in Accra, Ghana. - Noah Klugman; Joshua Adkins; Susanna Berkouwer; Kwame Abrokwah; Ivan Bobashev; Pat Pannuto; Matthew Podolsky; Aldo Suseno; Revati Thatte; Catherine Wolfram; Jay Taneja; Prabal Dutta (COMPASS, 2019)