WALLRAPP Biogas Plant
| Location | Germany |
| Construction Period | 2011 |
| Input | Pig manure, food waste, old bread |
| Fermenter | Lipp-Digester 1,100 m3 |
| Gas utilization | 100 kWel dual fuel cogenerator, 185 kWel gas engine |
| Specials | Extension of a biogas plant for the digestion of waste with hygienization by a secondary digester |
| Responsibility | Basic evaluation, pre-, draft-, approval and execution planning, additional consulting services |