Mechanical Engineer by education. Enjoy sustainable living projects. Currently have made or installed at my house: Roof mounted solar PV system; Three, 2 axis solar tracking arrays with 9 panels each; Solar hot water system; Solar home heating systems; Solar ovens; Aquaponics system with Tilapia; Chickens; Biodiesel production; normal gardening using dirt; and a 3000 gallon rainwater collection system. Also enjoy hacking things with Arduino.