The extension contract requires ICF to implement the energy efficiency portfolio for the utility.
The works will include designing and operating several energy efficiency programs, including a residential heating, ventilation, air conditioning (HVAC) and water heating program.
The portfolio will also include an efficient lighting and appliances program, a Home Performance with ENERGY STAR program and additional pilot programs.
ICF said it offers results and solutions to a broad range of clients in the energy industry globally.
ICF is a provider of consulting services and technology solutions to government and commercial clients.