Just because the cost of wind power has gone down to an insane degree, doesn’t mean the basic principles of a windmill changed. You still won’t get a sufficient amount of energy with less annual wind speed than 8 mph. Also, you should be sure you have the space to build the windmill. It is cheap in that it uses the wind as its source of energy and therefore does not have any capital to go along with its construction except those necessary for building it like materials necessary thereto. It is safe since it doesn’t produce smoke that will create gases harmful to our health and not to mention to the environment. It’s time we start to take the step of stop using conventional mean to power our cars, our dishwasher, and our homes. Eventually, we will hit an energy crisis that will devastate the world! The price of gas is skyrocketing, our energy bill will start costing thousands, the world will probably start fighting any necessary means to obtain more resources! Yes!? That can never be good. In fact, the generator will be hooked up to the utility grid and you can actually sell power to the utility if you produce more than you need. Now, the word turbine can be a bit intimidating. When I think of a turbine, I picture something large and loud. In the case of small wind, this is not the case. TV reception. How much do wind power systems cost?To purchase a large wind turbine system can cost from $6,000 to $22,000 installed depending on the size of the unit. Do it yourself or DIY systems can be as inexpensive as $150Most systems have very few moving parts which makes the possibilities of a break down uncommon and operation completely automatic. DIY systems provide considerable savings and complete hands on understanding of the system. For maximum benefits savvy home owners use wind power and solar power.