WIPO IPC Green inventory RE classification
| Category | Technology/industry |
|---|---|
| Alternative energy production | Bio-fuels |
| Integrated gasification combined cycle (IGCC) | |
| Fuel cells | |
| Pyrolysis or gasification of biomass | |
| Harnessing energy from manmade waste | |
| Hydro energy | |
| Ocean thermal energy conversion (OTEC) | |
| Wind energy | |
| Solar energy | |
| Geothermal energy | |
| Other production or use of heat, not derived from combustion, for example, natural heat using waste heat devices for producing mechanical power from muscle energy |
| Category | Technology/industry |
|---|---|
| Alternative energy production | Bio-fuels |
| Integrated gasification combined cycle ( | |
| Fuel cells | |
| Pyrolysis or gasification of biomass | |
| Harnessing energy from manmade waste | |
| Hydro energy | |
| Ocean thermal energy conversion ( | |
| Wind energy | |
| Solar energy | |
| Geothermal energy | |
| Other production or use of heat, not derived from combustion, for example, natural heat using waste heat devices for producing mechanical power from muscle energy |