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Table 13 Annual energy need for DHW, and use in Present State, Retrofit 1, Retrofit 2, kWh

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

  Ap. 1a Ap. 1b Ap. 2a Ap. 2b Ap. 3a Ap. 3b Building
Need 853.3 1367.4 748.3 750.2 748.3 750.2 5217.8
Use 2771 2188 2430 2436 2430 2436 14,689