One of my enduring memories of visiting Subic Bay Naval Base in the Philippines twenty years ago was passing by the base’s power plant. There was row after row of semi-truck-size 250kw diesel generators, all roaring away and belching unfiltered black smoke into the thick tropical air. The civilian power source frequently suffered brownouts so the base had to generate its own electricity.

I never thought that Naval Base San Diego would suffer the same conditions, but yesterday millions of San Diego residents lost power when a problem at a switching station in Arizona sent the San Diego County’s electrical grid crashing down within minutes. Being an electricity geek with a fascination for electrical malfunctions, I had to find out more about this situation.

According to the Arizona Public Service press release:
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