1 How do I know if my location is windy enough? 2 Why do you build such a 'classical-looking' wind turbine, when there are so many new 'fancy-looking' models? 3 How can Tanzanians be called poor?, when they have a mobile phone! 4 Why build it yourself, when there is plenty of wind turbines to buy? 5 Why don't use a human on a bicycle? 6 Why don't use solar in a country like Tanzania?