/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: NicGoodwin https://cdn.slidesharecdn.com/profile-photo-NicGoodwin-48x48.jpg?cb=1523180120 I work for a company that designs and installs ground & air source heat pumps as well as Solar PV systems ... Renewable Energy, it's the only way forward!!