Green investors, pension funds and private equity managers have a “wall of money” poised to flow into renewable energy ventures in Asia where demand for energy is growing exponentially, say observers. Investable opportunities may remain frustratingly elusive but the sector could soon explode into life.

Few doubt that sustainable energy in Asia could be lucrative, offer acceptably safe returns and be environmentally appealing with energy consumption in the region currently rising at almost 30 per cent a year – if regional authorities were not so focused on typically cheaper traditional fossil fuels.