Dilwyn Jenkins was Executive Director at the Powys Energy Agency between 2000 and 2004 and currently works from Wales as a consultant and writer on environmental issues, mainly related to energy, rainforest conservation, community development and cultural travel. Much of his work has focused on projects in Peru and Brazil as well as in Wales, Italy, Scandinavia and Austria. He is the author of Wood Pellet Heating Systems (Earthscan, 2010).