Competitive Energy Services | 1,483 followers on LinkedIn. The Independent Energy Experts | Founded in 2000 by career energy professionals, Competitive Energy Services, LLC (CES) has been on the forefront of energy procurement since the advent of deregulation. Today, CES offers a broad variety of strategic energy management services which are unparalleled in the marketplace, including solar PV, net metering, cogeneration, demand response, fuel arbitrage, multi-fuel strategies, and demand management. Serving a diverse portfolio of clients from Atlantic Canada to California with energy and utility expenditures in excess of $2.0 billion, CES advises clients from every sector on the full range of energy market issues.