leed v4 green building focuses on lighting

Lighting is Center Stage in

LEED v4

In the US, lighting accounts for roughly 21% of commercial

electricity consumption.

Source: U.S. Energy Information Association

LEED v4 promotes more efficient lighting and lighting design in…

-EA Credit Optimize Energy Performance (≤20 points)

-EQ Credit Interior Lighting (≤2 points)-EQ Credit Daylight (≤3 points)

-EQ Credit Quality Views (≤2 points)-SS Credit Light Pollution Reduction (1 point)

Daylighting is the maximization of natural light allowed into a building

based on occupant needs.

Source: ANL Lighting

Daylighting Guide

…but more glass means more glare controls & consideration of passive

solar strategies.

Daylighting creates more open spaces

and improves circadian rhythms

by connecting occupants with the

natural world.

Image Source: University of Utah

Using ample glass for maximal daylight is particularly popular

in atrium design.

Luckily, LEED v4 now allows such atriums to count for as much as

30% of required area for the Quality Views credit.

Lighting controls are also a critical part of maximizing lighting efficiency for the

IEQ Interior Lighting credit.(90% of occupant spaces must have controls per Option 1 calculations.)

Smart lighting control technology worth investigating…

Cree SmartCast

CommScope Redwood

Philips ActiLume

Organic Response

Lighting controls & more efficient design aren’t just about reducing

energy consumption though…

LEED v4 also offers one point for IEQ Light Pollution Reduction

According to International Dark Sky Association, light pollution (unnecessary outdoor lighting that

escapes into the night sky), has numerous harmful effects on:

-Bird migration-Insect & nocturnal mammal life

-Amphibian reproduction -Melatonin production in humans

-Economic viability (wasted energy & finances)& more!

The right indoor & outdoor lighting can add significant value to your

LEED application.

Don’t miss the opportunity.

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