If the peak electricity use occurs around 2 p.m. then the best PV Panel system would be B. No tracking, tilted west.
The installers would prefer to avoid brownouts around 2 pm which means that they are more interested in the PV panels producing enough electricity around that time.
They should therefore install panels that do not track the sun's movement but will be tilted to the west which would be the location of the sun around 2 pm.
In conclusion, option B is correct.
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