It was with great interest that I read about the success of the residents of Osney in harnessing the flow of the Thames to provide clean, sustainable energy to dozens of homes nearby. Most satisfying of all is the use of the ancient Archimedes Screw technology, which has provided a reliable, renewable source of power for homes throughout the world for centuries.

Certainly, one influential Oxford man would have been delighted to read how simple, small-scale and sustainable technology is still relevant in modern Britain. Unfortunately, the great EF Schumacher is no longer with us.

But the economic philosophy he developed as a Rhodes Scholar at Oxford and expounded in his seminal book Small is Beautiful still plays a huge role in the world. It influences politicians – David Cameron has acknowledged its continuing relevance to his thinking – and the work of Practical Action, the International charity he set up nearly 50 years ago.

Practical Action uses very similar technology to that employed by the good people of Osney to provide power to those who are most in need in throughout the world. Happily, Schumacher’s philosophy not only helps 40-odd people in Osney, but a million people throughout the world every year.