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New Solar Study Examines Data From 200 Ground Stations on Six Continents

Time£º2017/5/3 Posted£ºMindtech Optoelectronic Limited

New Solar Study Examines Data From 200 Ground Stations on Six Continents

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Finland-based Vaisala last week released a paperthat compares observational data from nearly 200 ground stations across six continents with satellite-derived irradiance records from five different versions of the company¡¯s global solar dataset. solar prepaid systems

The company said that the results of the study indicate that Vaisala's values for global horizontal irradiance (GHI) ¡ª the key variable for PV projects ¡ª have a standard deviation of bias error, or uncertainty, of 4.4-4.9 percent, depending on the version of the dataset. solar charging systems

¡°Vaisala has been working actively within the energy industry since 2009 to quantify and reduce solar resource uncertainty worldwide," Gwendalyn Bender, head of solar services, Vaisala, said in a statement. "Over the years, we have seen how significantly local factors, such as pollution, dust, or seasonal variation, can influence the accuracy of solar resource information ¡ª and thus a project's future solar power generation. In India, for instance, aerosol levels have changed dramatically over the past five years." solar generator 60w

Bender also noted that these regional differences are often better captured by using a different aerosol or turbidity input or by employing a different irradiance model.

¡°By providing multiple, validated datasets that are processed consistently across the globe, our clients can now compare the results to find the solar data source that best fits local conditions,¡± Bender said. solar lease

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