Reduction potential of operational carbon dioxide emission of Nakanoshima business/cultural area as a model for low-carbon districts in warm climates

► In warm climates, energy usage for heating is not dominant in commercial buildings. ► Thus available technologies must be fully utilized to achieve a large CO2 reduction. ► A potential reduction was estimated for Nakanoshima commercial Area, Japan. ► A community-scale simulation revealed that 65% of the emission can be reduced.