ZIPPERER Biogas Plant
| Location | Germany |
| Construction Period | 1990 |
| Input | Manure, straw |
| Fermenter | Steel tanks, 2 x 60 m3 each |
| Gas utilization | Gas engine, 15 kWel |
| Specials | Two digester, gas holder above 400 m³ storage tank, solid/liquid separation |
| Responsibility | Basic evaluation, pre-, draft- and execution planning, site management/project controlling, start-up |