The fuel cell meets the most stringent air emissions standards as set by the California Air Resources Board. Although it is powered by natural gas, it produces 35 percent less CO2 per megawatt-hour than the average fossil fuel-based power plant, and approximately 4,000 lbs per year less NOx, the equivalent of taking more than 100 average passenger cars off the road, according to Fujitsu. Compared to conventional power plants, a Power PureCell system will save at least 800,000 gallons of water per year.
Fujitsu, as well as PG&E, used the fuel-cell installation as an opportunity to celebrate its other eco-friendly achievements. According to PG&E, the company's various energy-effiency efforts have "saved over 3,300,000 kilowatt hours of electricity and 4,000 therms of natural gas annually, while reducing their overall electric demand for their Sunnyvale campus by 350 kW. Fujitsu Americas efforts have effectively prevented approximately 1.8 million tons of carbon dioxide from being released into the atmosphere each year."