Optimum Energy, the leading provider of data-driven cooling and heating optimization solutions for enterprise facilities, announced that it has appointed Bert Valdman as president and chief executive officer of the company, effective February 20. Valdman joins Optimum Energy from Edison International, where he was senior vice president and chief strategy officer since 2011. He has served on the Optimum Energy board of directors since 2013. Valdman replaces Matt Frey, who has served as president and chief executive officer of Optimum Energy since 2010.