The paper outlines the history of the extraction of power from the River Derwent in Derbyshire, England, a source of abundant, reliable and vigorous water flow; and how this renewable power source provided power for the industrialization of what were formerly cottage occupations. The Romans introduced Water Wheels to Britain in the 1st century, which were used in the Derwent Valley to grind grist, mine lead, power iron forges and pump water. The prototype factories of the Industrial Revolution were built here, utilizing water power technology to drive textile mills. Cotchett’s Silk Mill, built in Derby in 1702, was followed by Lombe’s Silk Mill nearby in 1717, Then followed the cotton industry, led by Arkwright and Strutt in Cromford, the first “modern” mill, with 200 hands and round-the-clock operations, in 1771. After this success, Strutt built a larger mill in 1782 at Belper, powered by eleven 21 ft diameter water wheels. Samuel Slater, apprenticed during the building of this mill, emigrated secretly to America, where he enabled the first successful U.S cotton mill to be built in Pawtucket, R.I. The skills and traditions remain in the area, in such notable companies as Rolls-Royce and the Royal Crown Derby Porcelain works.