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  • Getting smart about lighting is an important step to reducing your building’s energy demands.

  • Good lighting design means using daylighting, efficient lights, and good controls.

  • Daylighting is a passive strategy that won’t just cut your lighting load;

  • it also makes people happier

  • and more productive.

  • But the sun moves throughout the day and throughout the year,

  • so sometimes it's too bright,

  • and other times not bright enough.

  • And if you have a building with a deep footprint,

  • you have to draw the sun's light deep inside.

  • The most important thing is that light be well-distributed.

  • If it's too dark in some places and too bright in others,

  • then it can cause glare.

  • You can get light deep into buildings by bouncing it around

  • with light shelves,

  • reflective surfaces,

  • and high windows

  • or cutting holes

  • like skylights

  • or light wells.

  • Whatever brightness you can’t achieve passively with sunlight,

  • you'll make up with electric lights.

  • Obviously you want energy-efficient ones.

  • You measure lighting efficacy by how many Lumens of light it delivers per Watt of electricity.

  • This includes both the bulbs that generate the light and the fixtures that distribute it.

  • Task lighting has different requirements from ambient lighting,

  • and it varies by task.

  • Lighting designs that handle these separately

  • allow users to use only the light they need.

  • You can get even more efficient with your lighting

  • by using smart combinations of automatic controls and user controls,

  • again, delivering just the light people need

  • when they need it.

  • And remember,

  • better lighting not only saves a lot of electricity,

  • it means less waste heat,

  • which also lowers cooling loads.

  • That takes us two steps along the path to Net Zero.

Getting smart about lighting is an important step to reducing your building’s energy demands.

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A2 初級

昼光、効率的な照明、照明制御を用いた持続可能な照明設計 (Sustainable Lighting Design With Daylighting, Efficient Lights, & Lighting Controls)

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    Heidi に公開 2021 年 01 月 14 日
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