POTENTIAL OF ENERGY GENERATION BY INTRODUCTION OF PHOTOVOLTAIC AND SMALL WIND POWER SYSTEM IN SEWAGE TREATMENT PLANTS IN JAPAN

Abstract

 Sites of sewage treatment plants are available as s ites for renewable power generation, while the plants are large energy consumers. This study estimated generation potential of renewable energy by introducing photovoltaic power generation system and small wind power generation system at the sewage treatment plants in 18 major cities. As a result of estimation, 31% of power consumed in the targeted plants were generated by the solar and wind power generation systems when they were intalled in all the plants in the targeted cities. The generated power corresponds to 274,000 t-CO₂/year. Approximately 50% of total generated power was generated at 25 plan ts of the 121 of targeted plants.