Dominion Energy (D -0.75%) has undergone a major transformation over the past decade. The energy company has invested heavily in expanding its regulated utility operations to capitalize on growing power demand across the Southeast. Meanwhile, it has sold off several other energy businesses to help pay for these investments. Here's a look at how much value the company's investment strategy has generated for shareholders over the past decade.Ten years ago, Dominion Energy was one of the largest producers and ...