Digital-Twin-Based Evaluation of Nearly Zero-Energy Building for Existing Buildings Based on Scan-to-BIM

Table 3

Building energy consumption and photovoltaic module power generation.

	Energy consumption (kWh)	Power generation (kWh)	Carbon emission (kg CO2eq)
Existing building	24771.10	17645.35	5013.0
Retrofitting scheme	22908.67	21903.76	707.0