A-5A3 - Combined Heat and Power (CHP)
- A-5A3-1 - Alter CHP coal production
- A-5A3-2 - Alter CHP oil production
- A-5A3-3 - Alter CHP natural gas production
- A-5A3-4 - Alter CHP landfill gas production
- A-5A3-5 - Combined heat power from hydrogen
- A-5A3-6 - Alter CHP waste incineration
- A-5A3-7 - Alter CHP sludge production
- A-5A3-8 - Alter CHP biogas production
- A-5A3-9 - Alter CHP biofuel production