Dutch organizations┬átake a leading position in energy efficiency and renewable energy which can be used for developing sustainable stadiums. In Qatar many of those organisation work with QP on the GTL Pearl project. Also the technology suppliers develop solutions that contribute to low footprint. New LED stadium lighting cut power by 30%, while smart metering and efficient systems provide energy efficient cooling, heating and water. Companies from the DSI cluster combine knowledge, technologies and products that even bring water purifying through artificial grass for training pitches or landscaping. Demountable stadium parts are more durable because they are ‘recycled’ after big events and can be used for other purposes or stadiums in other locations.