Solmetric SunEye 210, User Manual

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2-7
Using the SunEye
Create a Session
Figure 2-10. Session Properties
9 Change the weather model (United States only). In United States locations, there are two weather
models available: NASA and NREL – TMY3 (Typical Meteorological Year). The weather model
used by the SunEye may impact the insolation and solar access calculations. To learn more about
the weather models,
refer to “Weather, Air quality and Clouds” on page 4-3 .
10 To select the most appropriate weather model for each session,
a Select Session > Weather Properties > Change Weather Model... .
b Select NREL – TMY3 or NASA – Kt . If NREL – TMY3 is selected, then information about
the selected NREL weather station is displayed. By default, the SunEye selects the weather
station that is closest in geographical distance to the session location that you entered. The
name, Weather Bureau Army Navy (WBAN) identification number, and latitude and longi-
tude of the station are displayed, as well as the distance from the session location to the station
location. The optimal unshaded tilt and azimuth are also displayed for the specific location.
Figure 2-11. Weather Model
11 To change the weather station, for example, to better match weather patterns at the selected
location, select “
Change Weather Model” > Next. Select the US state or territory and then click
Next , then pick the desired weather station from the list and click Done .
12 Change any information, as necessary.