Download the best wallpapers, photos and pictures for your desktop for free only here a couple of clicks! One option for renewable energy producers that has always been open to utility companies but rarely utilized until now, is the installation of both wind power and solar power plants together at the same location, which usually results in a doubling in the amount of electricity produced over the course of a year vs. This hybrid power plant shows solar and wind power providing complementary electrical power generation.
Prior to a study done by Reiner Lemoine Institut and Solarpraxis AG it was incorrectly thought that the huge towers upon which the wind turbines are mounted would cast long shadows over the solar panel array, thereby reducing their efficiency by a significant factor. But it turns out that when solar and wind power generation are combined on the same site, such hybrid power plants complement each other better than had been imagined.
Approximately twice the power generation is available from any such hybrid power plant site, when compared to wind only, or solar only.
The landmark study took into account the amount of sunlight loss (shading) which would occur in a carefully designed hybrid power plant. This is a lower energy loss percentage, than compared to conventional power plant energy, such as coal — where up to 10 percent of the coal can be lost during transport from North America-to-China, or from Australia-to-China, and later storage, for example.


A major benefit of such hybrid power plants is that due to the relative intermittency of both wind power and solar power is they tend to cancel out the others’ weaknesses.
Wind power peaks at night, during cool days, and in the colder seasons of the year — while solar produces power during the daylight hours, the warmer parts of the day and most especially during the warmer seasons, when the Sun is high in the sky, directly over the solar panel array. Until now, it was thought that the shadows cast on solar plants by wind turbines led to high yield losses.
The study shows, however, that these shading losses are much lower than expected, provided the hybrid power plant is well designed. Many utility companies are already operating solar and wind hybrid power plants, or are planning for such installations over the next few years. Boulder City, Nevada, is likewise adding wind turbines to their huge and ongoing solar power plant installations — so they can sell solar electricity to nearby cities and towns during the day, while adding the ability to sell wind electricity during the night.
The power grid operates with a variety of power plants constantly coming on line, going off line, and ramping production up and down to meet the varying demand for electricity over the course of the day and over the course of the year. There are always power plants idle and ready to generate more as part of the overall plan to assure reliable power.


Click here to read Part I, Part II and Part III of my interview with Harry Warren, WGES President. Previous Article C40 Initiative: Mirror, Mirror, on the Wall, Which Is the Greenest City of All?Next Article Over the Top!
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Harry Warren, the President of WGES, and speaking on the intermittency of wind power (and similar applies to solar power) he said that it is quite normal for power producers to add different kinds of power at different times of the day.
Although the solar wind is always directed away from the Sun, its intensity and speed are dependent on the Sun’s activity. If you click on the SolarPraxis link within my article, you will find that particular photo and can find out more about hybrid power plants.



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