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Table 11 Annual energy need for heating in each retrofit scenario, kWh

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

Scenario Ap. 1a Ap. 1b Ap. 2a Ap. 2b Ap. 3a Ap. 3b Building
Present State 9487 17976 7479 6245 9475 8391 59,054
Retrofit 1 4579 9111 3435 2375 3867 2868 26,234
Retrofit 2 รท 5 2873 6114 1773 1608 2190 2112 16,670