• CAD software
• automation technology
• design drawings
• design principles
• electric current
• electric generators
• electrical discharge
• electrical engineering
• electrical power safety regulations
• electricity
• electricity consumption
• electricity market
• energy performance of buildings
• energy transformation
• environmental engineering
• environmental legislation
• fluid mechanics
• fossil fuels
• fuel distribution systems
• fuel gas
• gas consumption
• gas market
• heat transfer processes
• heating, ventilation, air conditioning and refrigeration parts
• hydraulics
• industrial heating systems
• manufacturing of steam generators
• mechanical engineering
• natural gas
• pipeline transport regulations;
• pollution legislation
• pollution prevention
• power engineering
• quality standards
• refrigerants
• renewable energy technologies
• security requirements of goods transported via pipelines
• solar energy
• thermodynamics
• transmission towers
• types of photovoltaic panels
• types of pipelines
• types of wind turbines
• waste and scrap products
• wire harnesses
• zero-energy building design