The C-BEST Program could help you start saving in four easy steps: Talk with a Business Energy Advisor to determine equipment eligibility. Work with a trade ally to install the new equipment. Submit your rebate application. Enjoy the benefits of your new energy-efficient equipment that could help lower energy use. Program Eligibility Requirements Qualifying businesses must have an active commercial account in the SoCalGas service territory (excluding Riverside and San Bernardino counties) and use less than 50,000 therms per year. In addition, businesses must not have received an incentive for the same equipment from SoCalGas in the past five years.