Comet Group was an electrical retail chain trading in the United Kingdom, latterly owned by OpCapita. The company sold consumer electronics and white goods, along with related products and services, and pioneered the concept of the out-of-town discount warehouse in the United Kingdom.The company was formed in 1933 by George Hollingbery as a business charging batteries for customers on a weekly basis. The business grew and diversified into radio rentals, and the first store opened in the 1950s.