Sistema Biobolsa helps farmers put waste to work: utilizing patented Biobolsa biodigesters, farmers convert animal manure into renewable energy and organic fertilizer to power their houses and fertilize their crops. With as few as two cows, a Biobolsa biodigester produces enough clean and renewable biogas to meet all energy needs for cooking and heating in a rural household as well as organic fertilizer to improve crop yield for up to five hectares.