BOSTON ( TheStreet) -- Utility stocks were the rage in July when investors feared a double-dip. But, in anticipation of QE2, dividend-payers trailed riskier stocks. Utilities currently comprise the cheapest U.S. sector based on earnings expectations. They also represent the most inexpensive subset of the S&P 500 despite yielding more than the U.S. 10-year Treasury bond. Here are the 10 cheapest large-cap utility stocks, from cheap to cheapest.