| Energy source/Technology | Energy generated | Energy use in the building | Reliability of the technology | Cost effectiveness of the technology | Current use in buildings in northern Greece |
| Solid biomass in individual systems | Heat | Space heating, hot water production | High | Satisfactory | Yes |
| Solid biomass in district heating systems | Heat | Space heating, hot water production | High | Satisfactory | No, it has not been studied |
| Solar thermal energy-Flat plate collectors | Heat | Hot water production | High | Satisfactory | Yes |
| Solar-PV systems | Electricity | Lighting, Operation of electric appliances | High | Satisfactory | Yes |
| Waste heat rejected from various plants | Heat | Space heating, hot water production | High | Satisfactory | Yes |