P-7-3 太陽光・風力発電設備の廃棄に伴う二酸化炭素排出量の推計

抄録

The present study aims to estimate CO₂ emissions from decommissioning of solar and wind power plants. Using a hybrid method that combines process and input-output analyses, the CO₂ emission is calculated based on an average decommissioning cost, which is estimated from the detailed construction cost data for different types of power plants. For a solar photovoltaic power plant, the estimated CO₂ emission at the demolition stage is 2.1 g-CO₂/kWh (tentative value), which accounts for about 4% of life cycle CO₂ emission including the construction, operation and maintenance stages.