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Solar Site Assessment Seattle

If you are considering renewable energy source, the first question you need to ask is how much energy you need at your site. It is more than just purchasing some solar panels and installing them. One of the things to do is to determine if your location is just perfect. Check for the average conditions for your city. However, if you’d like to get exact information then you should consider solar site assessment Seattle. This has to be done by a professional.

If you are considering installing solar panels on your site, you need to have an idea about where to place your solar panels. First, orientation should be put into consideration. Keep in mind that solar panel works more effectively when they face south, assuming you are in the northern hemisphere. In this case, you need a lot of south facing sunshine without shading during the day. Make sure they are set at an angle close to the latitude of your location. During summer the optimal angle varies between 15 degrees less that your latitude. For winters, it varies between 15 degrees more. This, on the other hand, does not pose a problem for good mounting, but if you have a flat or steep roof then you need more brackets. This will help set the angle correctly. Furthermore, if your roof looks old, consider replacing it before going about the solar installation process on the roof.

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Solar site assessments are based on certain conditions but more importantly the peak sun hours. In this case, there are some few things you need to know

  • A peak sun hour is one hour of solar energy on a clear day falling on one-square meter at the correct angle to the sun.
  • In ideal conditions, one peak sun hour equals 1 kWh per square meter.

Two other measurements that you will need to know are:

  • Irradiance: The rate of solar radiation falling in a specific area at a moment in time. This is measured as kilowatts per square meter (kW/m2).
  • Irradiation: Commonly called “radiation”, this is the amount of solar energy falling on a site over time. It is measured as kilowatt hours per square meter per day. (kWh / m2 / day)

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