Technical knowledge in a field related to the energy industry, such as energy management, HVAC equipment, distributed generation, and end-use gas and electric equipment (motors, engines, heat pumps, water heaters, boilers, cooking equipment, etc.). The knowledge and capability to plan, design and manage new gas services, which includes load calculation/diversification, drawings, sizing (lines, tanks, meters, regulators, gas pressures, etc.), fire suppression systems and permitting.