Cows keep the lights on: Using methane digesters to turn waste into watts

When the sun rises each morning and we turn on the lights to start our day, many of us are unaware of exactly where the electricity lighting our homes originates or how it is created. For many homes in California’s San Joaquin Valley, that electricity is being powered by an unexpected source: cow manure.At Fiscalini Farms outside Modesto, California, Brian Fiscalini and his family are practicing sustainable dairy farming by using a dairy methane digester. The methane digester converts the manure created by their dairy cows into electricity by combining the manure with high levels of heat.