'''Sustainable design''' or '''sustainable technology''' is similar to [[appropriate technology]] but broader, including both high technology and very low technology. Sustainable technology may be more expensive up front, but offers savings through efficient operation; or it may be cheaper up-front through simpler design. | '''Sustainable design''' or '''sustainable technology''' is similar to [[appropriate technology]] but broader, including both high technology and very low technology. Sustainable technology may be more expensive up front, but offers savings through efficient operation; or it may be cheaper up-front through simpler design. |