NRG Energy has begun field testing GreenFuel Technologies’ proprietary Emissions-to-Biofuels bioreactor technology (earlier post) at NRG’s Big Cajun II—a 1,489 net MW coal-fueled power plant in New Roads, Louisiana.
GreenFuel’s Emissions-to-Biofuels process uses naturally occurring algae to capture and reduce flue gas carbon dioxide emissions into the atmosphere. The algae are harvested daily and can be converted into a broad range of biofuels or high-value animal feed supplements.
Power generators can choose to dry and store the carbon-rich algae biomass for use as renewable fuel for the power plant or convert it to transportation fuels such as biodiesel or ethanol. The process requires no re-engineering of the power plant.
In the initial field testing, which will last approximately four months, algae species will be selected to optimize biofuel production based on the site’s flue gas composition, local climate and geography toward an ultimate goal of construction of a commercial-scale facility. A full scale commercial deployment could recycle enough CO2 to yield as much as 8,000 gallons of biodiesel per acre annually under optimum conditions.
NRG owns a diverse portfolio of power-generating facilities, primarily in Texas and the Northeast, South Central and West regions of the United States. Its operations include baseload, intermediate, peaking, and cogeneration and thermal energy production facilities. NRG also has ownership interests in generating facilities in Australia, Brazil and Germany.