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EBOM-v4.1 EAp1:Energy Efficiency Best Management Practices

interior lighting power allowance in w/sq. m

How to calculate interior lighting power allowance in w/sq. m? how to calculate gross light floor area ratio in w/sq. m (GLFA)?

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Rock Ridolfi
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Engineering Economics, Inc.
LEEDuser Expert
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Thu, 01/04/2024 - 19:58

Hi Pranav, ICC has posted Interior Lighting Power Allowances using either the Building Area Method under TABLE C405.3.2(1) or using the Space-by-Space Method under TABLE C405.3.2(2). For SI: 1 watt per square foot = 10.76 w/m2. You may need to verify local jurisdiction and the LEED referenced standards for the most applicable version. https://codes.iccsafe.org/s/IECC2021P2/chapter-4-ce-commercial-energy-efficiency/IECC2021P2-CE-Ch04-SecC405.3.2

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