The (old) Roof Azimuth Tool doesn’t work when I click the button
On some versions of the Firefox web browser, clicking on the button to put your mouse pointer into “measure mode” does not cause the button to stay green and activate measure mode. Try clicking and dragging the button a short distance and then dropping it to workaround this issue. It is also possible to use […]
How do you hold the SunEye Extension kit level?
Solmetric has found that an operator is able to control the pole very well without additional level indicators at the base of the extension pole. In addition, the SunEye readings will be automatically corrected for the tilt and azimuth of the SunEye when readings are taken. Tilt compensation will be up to 7 degrees, and […]
What is the confidence interval of SunEye solar access readings?
We do not specify the confidence interval of the energy production estimates of PV Designer. Since our calculations are closely tied to PV Watts, it may be possible to leverage some of the work and expertise available for PV Watts. There is some literature available that shows example results for PV Watts, such as http://www.nrel.gov/docs/fy02osti/30941.pdf […]
What is included with the PV Analyzer?
The PVA-600 includes the following: a Measurement Unit that connects to the PV module or string under test wireless interface from the Measurement Unit to a computer software for capturing and processing the data on a Windows PC Optional accessories are also available: wireless sensor kit to measure irradiance and temperature test leads with alligator […]
What is the PV Analyzer?
The PV Analyzer is a measurement solution to verify the performance of photovoltaic (PV) solar electric systems. It measures DC current and voltage of modules and strings and provides the data as an “I-V curve”, a well recognized signature for PV performance. The measurement results and compared to mathematical models to check that results are […]
Who should operate the PV Analyzer? Who uses the PVA data?
The PVA is designed for electrical testing and verification of solar electric systems. It is designed for use by qualified personnel trained to install and operate high voltage electrical systems. The I-V data taken by the PV Analyzer is of interest to any stakeholders in the performance of the system, including the installers, designers, operations […]
Is the PV Analyzer protected from a possible ground fault in the system?
The PV Analyzer has only two leads, so there is no path to ground and no chance of the unit being energized by a ground fault. Also, all the accessible parts of the device are electrically isolated to ensure safe operation.
What connectors does the PV Analyzer come with?
The leads of the PV Analyzer terminate in MC-4 connectors. Included with the PVA are some adapter accessories such as MC-4 to MC-4 connector savers, and MC-4 to MC-3. An optional MC-4 to alligator clip test lead set is also available.
How many SunPower strings can the PV Analyzer test in parallel?
Only one Sunpower string should be measured at a time due to the nature of these high-efficiency modules.
Does the PV Analyzer software automatically name the saved I-V curves?
No, the PV Analyzer software requires you to name each of the I-V curves that you save. A convenient approach is to set up a file folder tree ahead of time, then using a simple numerical convention for file naming, for example, inverter-combiner-string numbers. This can speed the file naming for each successive string measurement […]