4 - Energy

4.1 - Energy storage and transport

• 4.1.1 - Heat storage
• 4.1.2 - Heat transport and supply, district heating

4.2 - Energy production, transmission and conversion

• 4.2.2 - Heat exchangers
• 4.2.8 - Heat pump

4.5 - Renewable Sources of Energy

• 4.5.3 - Photovoltaics
• 4.5.4 - Solar/Thermal energy
• 4.5.8 - Waste to energy other

4.6 - Rational use of energy

• 4.6.2 - Thermal insulation
• 4.6.4 - Energy management
• 4.6.5 - Process optimisation, waste heat utilisation

4.8 - Energy Efficiency

9 - Measurements and standards

9.1 - Measurement Tools

• 9.1.10 - Thermal material testing

9.3 - Electronic measurement systems

11 - Social and Economic Concerns

11.4 - Technology, Society and Employment