UI has observed testing of the PV system's inverter in operation.
Commonly referred to as a "solar system", a photo-voltaic (PV) system has many components. First of course are the panels where photons are converted to electrons. Those electrons move in a direct current (DC) type of manner - much like electricity in your automobile. This current is sent to an inverter which changes the electricity to an alternating current (AC) with correct phase, frequency, voltage and other aspects that will match what is being delivered from the utility so it "marries" properly. Lastly, the meters record what is being consumed and generated for the utility company.
Important to the utility company is correct equipment that "marries" with theirs and will not damage their infrastructure. They confirm this through testing that they witness - thus the term "witness test".
We did our test today, and were given the ok to run our system. Once we have some averages and time to generate reflective data, I'll update the blog with information. Till then, here is a video of our installer's representative explaining our witness test while it was happening.
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