In a recent white paper, UK-based Aggreko became the latest traditional supplier of thermal power solutions to advocate the use of solar-battery-diesel hybrid systems at mines. The company, which launched its hybrid offering 18 months ago and installed its first system last year at the Bisha gold mine in Eritrea, joined another major mine supplier, Wärtsilä, in promoting the technology for mines. But mining is not the only area where Aggreko is having to look at new products and business models.