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Future Cities and Environment
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Table 19 Annual use of primary energy for lighting, 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 รท Retrofit 3 413 617 362 363 362 363 2481
Retrofit 4 and Retrofit 5 83 123 72 73 72 73 496
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