In order to investigate the benefits of wood-pellet fuel application, the energy cost per unit of conventional energy and wood-pellet fuel was analyzed, and operation costs in the typical boilers were analyzed. Results showed that all operation costs of wood-pellet fuel were 32.95% of oil fuel costs, 67.41% of gas fuel costs in civil and industrial boilers. If 10% of water boilers fueled with oil in China were replaced with wood-pellet fuel, the operation cost would reduce 6 billion Yuan per year, or 1.425 billion Yuan per year for gas fuel boilers, and emission of greenhouse gas (CO 2) would ...