Enel X

Enel X was first established by Timothy G. Healy and David Brewster, as EnerNOC, LLC in New Hampshire from December 2001 until June 2003. On 5 June 2003 EnerNOC was incorporated in Delaware. EnerNOC went public in 2007 on the NASDAQ stock exchange, raising US$98 million.[5][6]

EnerNOC owned numerous subsidiaries around the world. In 2009, EnerNOC bought Cogent Energy and acquired eQuilibrium Solutions.[7] In March, 2010, EnerNOC bought SmallFoot, LLC, a company that makes wireless systems to manage demand for smaller facilities.[8] In late 2010 and early 2011, respectively, EnerNOC announced agreements to acquire Global Energy Partners and M2M Communications.[9]

Since early 2014, EnerNOC acquired five additional companies: Activation Energy, an Irish provider of demand response; Entelios, a German demand response provider; EnTech, a global utility bill management software provider; Pulse Energy, a Vancouver-based provider of utility customer engagement software; and World Energy, an energy procurement software company.

In August 2017, Enel Green Power North America acquired EnerNOC for over $300 million.[4][10] In January 2018, EnerNOC integrated Demand Energy, the provider of the DEN.OS platform for optimizing energy storage and on-site power generation for demand-side management and microgrid deployments, which had been acquired by the Enel Group in January 2017.[11]

In the summer of 2010, EnerNOC contracted with the Tennessee Valley Authority, the nation's largest public power company, for a 10-year, 560 megawatt demand response contract that represented an addition of 400 MW to TVA's existing deployment of approximately 160 MW with Enel X.[12] Enel X has also performed work for the United States Department of Energy.[13]