As wind speed never remains constant throughout the year, a wind farm’s annualized electricity output seldom matches the generator nameplate rating multiplied by the total hours in a year. But that is not all. It also depends on several other factors like the site selection, the capacity factor, penetration limits, and others like this. For instance, a 1 MG wind turbine with a capacity factor of 35% will not be able to give an output of 1x24x365 or 8,760 megawatt-hours in an annualized version but will produce .35x24x365 or 3,066MWh, averaging to .35MW. However, data online is available for certain locations while capacity factor can be computed from the annualized output.
may be of significance to know that unlike fossil fuel
generated power plants, the capacity factor of wind is
guided by the inherent properties of wind. In contrast,
the CP of
non-wind generated power plants are mostly based on cost
of fuel plus some amount of downtime involving
maintenance and allied operations. The picture however,
with nuclear power plants is totally different where
they are run at full output all the while, achieving 90%
or more capacity factor. A
Wind power generated electricity can also prove substantially patchy or erratic at different timescales – from hour to hour, day to day and from season to season (however there is no real reason to worry about this as solutions to this problem is available for the person who wants to install a cheap wind power system at the home or the commercial establishment). Although annual variation do exist but it is considered not so significant since immediate generation and consumption ratio has to be maintained at a relevant level to keep up the grid stability.
Nevertheless, here is some indication of annualized electricity output from wind power, obtained from usually reliable sources.
Site Average Wind Speed m/s 4.0 5.0 6.0 7.0 8.0 9.0
mph 9.0 11.2 13.4 15.7 20.2
it is necessary to know that these figures provide only
an average annualized output from wind power as it is
available in the
Research is going on full swing for development of more efficient home wind turbines that are absolutely soundless and can operate in bare minimum wind speed so that adding wind power can no more pose a problem to anyone. But currently too, the wind power systems that are available are efficient enough to give you great advantages.
Adding wind power makes a lot of sense due to a number of reasons. Firstly you will be able to save a lot of money on your power bills. Secondly, you can earn some money by selling your extra power if you are connected to the grid. And thirdly, being a safe and clean energy, you can contribute to clean up the environment. Given the many ecological and financial advantages of wind power, adding wind power makes perfect sense. But to get such a system working, you should know how to make it functional. You must also know where to buy cheap parts and replacement parts from, safety precautions, choosing the best location for the system and also how to complete the wiring.