With the advent of advanced power electronics, distributed renewable generation, and direct-current (dc)distribution, the power industry has been anticipating a massive revolution in the way power is used in the United States. Although this expected local shift has been gradual to date, it may be approaching quickly and quietly from the periphery. According to a recent report from Navigant Research, the dc product marketplace is expected to total US$33 billion between 2015 and 2024 in four key market segments: off- and bad-grid telecommunications, data centers, commercial buildings, and off-grid military operations. A similar developing trend is taking place in the microgrid market,where a study by Markets and Markets forecasts a US$35 billion annual marketplace by 2022.