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Table 24 Annual use of primary thermal energy and of electric energy, kWh, and annual emission of CO2, kg

From: Planned energy-efficient retrofitting of a residential building in Italy

Scenario THE heat EE heat THE DHW EE DHW EE light THE EE CO2 THE CO2 EE CO2
Present State 76,564 0 2187 5749 1141 78,751 6890 21,814 4251 26,065
Retrofit 1 34,013 0 2187 5749 1141 36,201 6890 10,028 4251 14,279
Retrofit 2 21,614 0 2187 5749 1141 23,801 6890 6593 4251 10,844
Retrofit 3 414 6653 0 619 1141 414 8413 115 5191 5305
Retrofit 4 414 6653 0 619 228 414 7500 115 4628 4742
Retrofit 5 414   1    415 5619 115 3467 3582