In a new burst of inventiveness in developing renewable energy, scientists have found how to generate electricity from people walking on an electric floor.
Renewables will be the fastest-growing source of electricity but growth still concentrated in wind and solar PV, and government support remains critical
Investments will be targeted in the technology sector, including digital media, information communications technology, life sciences/health care and clean technology
Solar power in India will be cheaper than imported coal by 2020, but replacing the subcontinent's fossil fuels with renewable energy is an enormous task.