Thailand’s green building and energy efficiency construction sector, which may need BT400bn ($13bn) in spending over the next two decades, is looking toward better certification standards and government incentives to drive growth. Figures released by the Department of Alternative Energy Development and Efficiency (DEDE) show that BT216bn ($7bn) was spent on energy efficiency between 2003 and 2011, highlighting the growing awareness of sustainability and conservation within Thailand in recent years.