In the analysis performed by Weiland [26], animal manure, of which cattle manure is a subset, only accounted for 24% of the total energy potential from biogas sources in Germany. Restricting that analysis to only farm-based sources of organic materials by excluding landfill gas, wastewater, municipal wastes and industrial wastes, animal manure still only accounted for 28% of the total energy potential from biogas sources in Germany. Applying this figure to Ontario, the electrical capacity from all farm-based biogas sources is approximately 700MWe and is 5500MWe nationally