Future Cities and Environment

Table 12 Annual use of primary energy for heating in Present State, Retrofit 1 and Retrofit 2, 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	12,301	23,306	9697	8096	12,285	10,879	76,564
Retrofit 1	5937	11813	4453	3079	5014	3718	34,013
Retrofit 2	3725	7927	2299	2085	2839	2738	21,614

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