Utility CEOs have two missions: To help customers by keeping rates low, and to protect the environment by shifting to costlier green energy

As said CEO of a major utility, Entergy (ENT), his job is bringing affordable energy to all the people. But where governments around the world once demanded merely that utilities provide cheap electricity to light up cities and power TVs, now there's a call for a radical transformation to a cleaner, greener energy supply to fight the perils of climate change and dependence on fossil fuels.