Times of India: Stuart Irvine, director, Centre for Solar Energy Research, North Wales, tells Narayani Ganesh that efficient and affordable third generation solar technology could help reduce our dependence on polluting fuels: What is third generation solar technology? The I-Gen cells were of crystalline silicon, fairly high-cost, manufactured in relatively small volumes. The II-Gen cells had higher efficiency, whether made of thin wafers or silicon. The III-Gen has more complex, integrated …