Second, experts point out most urban and suburban lots do not afford enough space for construction of residential wind generators large enough to supply all the electricity twenty-first century families need. Therefore, they stress installation of wind turbines along with photo-voltaic cells and high-capacity storage batteries. Of course higher income households may be able to afford such high prices, but what about the average families who are most affected by the high cost of electricity?For years now, innovative home owners have taken to making their own wind turbines using simple and cheap materials that you can find in the hardware store and second-hand parts available from the scrap garage.The basic principle of wind turbines is that “as the wind increases, output for the turbine also increases while the current supplied by the utility is lowered.- If there is excess electricity collected, it is automatically sold back to the utility, because residential wind generators usually have no battery packs.- Small wind turbines could in fact lower power bills by 50 to 80 percent. The amount of money it can save depends upon the consumption of electricity, the average wind speed on site, and other factors. If you home is in a sheltered position then the likely hood of having an effective wind turbine is not very good. These wind turbines operate best when there is a lot of wind flow around them. Noise can also be a consideration as to whether you choose a wind turbine for your home as these turbines can be at times quite noisy.
Source: wind turbines