1. Advantages of residential wind turbines
(1) High efficiency, compared to the conversion efficiency of solar panels of less than 30%, the conversion efficiency of wind turbines reaches 50% to 60%, and the efficiency of wind turbines is much higher than that of solar panels in an ideal environment.
(2) Clean energy, wind and solar energy belong to the same clean and sustainable energy, this kind of energy is in line with the global governance concept of carbon peak and carbon neutral, the source of energy has no cost, and can be installed in addition to maintenance to achieve zero cost.
(3) Small space occupation, wind turbines are usually installed on the roof of the house occupies an area of a pole than the solar panels occupy a much smaller area.
2. Disadvantages of residential wind turbines
(1) frequent maintenance, wind turbines purely in the power system than solar panels are more likely to be damaged, in the stormy weather will increase the damage if the wind turbine specifications are too small will be directly damaged, wind turbine power generation environment should be smooth wind, extreme weather will make the frequency of maintenance increased, mechanical parts will be more prone to corrosion and aging.
(2) poor stability of power generation, wind turbines on the environment of the wind requirements are high, even if the wind turbine can be in the day and night non-stop power generation but your regional wind is unpredictable, unlike solar energy law, wind energy is not regular, the wind as a source of energy for the house you may encounter a few days in a row for several weeks without a gale, even if there is a wind, the direction of the wind also has an effect on the wind turbine, and at the same time the wind turbines also have a starting wind speed, no energy is produced until that wind custom is reached, at 5 to 10 mph, and wind over the rated wind speed does not produce additional electricity, the rated wind speed is about 50 mph, which varies depending on the size of the wind turbine.
(3) High price, wind wind turbines are generally more expensive, prices in the range of $4,000 to $8,000 / kilowatt to reach the level of power generation in the average home at least $50,000, you can choose cheaper but the quality and safety issues can not be guaranteed. Compared to the same level of solar energy price gap is too large, need to carefully consider.
(4) Long payback cycle, based on the high price and irregular wind, although the efficiency of wind turbines is higher but still lead to wind turbine payback cycle of 6 to 20 years, counting the cost of maintenance may be difficult to pay back in some areas.
3. How to measure whether the wind turbine is valuable to me?
(1) Environmental wind power, in order to play the efficiency of wind turbines to the environment of the wind power in the continuation and size of the requirements for the use of wind turbines in areas with less wind power longer payback cycle.
(2) Wide area, the area where the wind turbine is to be installed needs to have certain requirements on the space to meet the wind flow in a larger space, usually not applicable between closely connected buildings, or you can also increase the height of the installation, but you need to understand the local restrictions on the installation of overhead objects to avoid causing trouble.
(3) Estimate whether the wind turbine meets the requirements of power generation, in the case of U.S. households, the annual household use of electricity is about 11,000 kilowatt hours of electricity, wind power in the ideal fully meet but your region will have a large difference in power generation.
(4) Usage, for both wind turbine power and photovoltaic power there are consistent options for supplying power to the home and integrating it into the grid for an additional fee, while you can also choose to install additional battery packs to save power for home blackouts.
Conclusion
For wind power generation for national and domestic wind turbines there is a big difference between the home cannot be realized at the national level of height and the ideal power generation there is a big difference between today’s wind power applicable areas such as the Netherlands, the United Kingdom and other year-round wind areas, for other areas based on the high price is not cost-effective can consider solar power system and other power supply for the family.
