As someone who monitors the exact voltage coming into my computers and audio equipment from WAPA, I found them to be much more stable than I expected. In a typical day, the voltage will only swings about 4-5 volts from 118 to 123.
This is quite acceptable, even for a stateside power company. My father, a retired engineer from the Baltimore Gas and Electric, was impressed as a swing of 4-5 volts is well below the fluctuations normally experienced during hot and very humid summer months in Maryland. I'm using a Furman RR15 power conditioner with a digital voltmeter display for my findings. I live in Estate Golden Grove so I cannot say what voltage swings occur in other parts of the island.
Editor's note: We welcome and encourage readers to keep the dialogue going by responding to Source commentary. Letters should be e-mailed with name and place of residence to [email protected].