Sistema.bio helps farmers put waste to work: using patented Sistema.bio biodigesters, farmers convert animal manure into renewable energy and organic, natural fertiliser to power their house and farm and fertilise their crops. With as few as two cows, a Sistema.bio biodigester produces enough clean and renewable biogas to meet all energy needs for cooking and heating in a rural household, as well as organic fertiliser to improve crop yields for up to five hectares, providing customers with a better quality of life.