Compressed air might be making a comeback after nearly 200 years; and this time not to deliver telegrams but to store energy. ____________________________________________________________________________________ 📌Timestamps: 00:00 Introduction 01:25 A Forgotten Energy System: The History of Compressed Air 06:30 Compressed Air`s Comeback from Tools to Energy Storage 09:46 The Engineering Challenges with CAES 10:55 The First Real System 12:56 Australia`s CAES 14:22 The Future of CAES