Initiative Landing Page

Natural Interior Daylight Initiative encourages homeowners, architects and building owners to use daylight as a primary light source.

A campaign to reduce our carbon emissions (and enjoy nicer lighting) in our buildings.

RESIDENTIAL HOME

Proper lighting makes your home feel open. It’s easier to read, cook, and even enjoy colors. Natural interior daylight in your home brightens the mood.

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OFFICE BUILDINGS

Offices lit with natural interior daylight have been proven to increase student performance, and provide a stimulating space for teacher and student.

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INDUSTRIAL FACILITY

There is plenty of evidence that natural interior daylight in the work environment creates happier and more productive factory workers.

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I couldn’t imagine buying a new vehicle under artificial lighting conditions.

Peter Hite - American Artist > View Eneref Report

We thought the modular skylight design was beautiful. And it also made for a much easier installation.

Stella Betts - Architect > View Eneref Report

What I can tell you is that walking into every one of those dorm rooms, the cooling and ventilation worked really well.

Joe Klein - Project Manager, Reeves Young > View Eneref Report

It makes a huge difference. It’s way brighter in here, even on cloudy days.

Josh Stringer - Crews Subaru Sales Manager > View Eneref Report

We should all have inverter-driven variable speed technology systems because we’d save energy and operating cost, be more comfortable, and reduce our carbon footprint. There’s really no downside.

Bill Goetzler - Navigant Managing Director > View Eneref Report

They’re really, really fantastic. It’s the most dramatic room in the house.

Kathy Wong - Homeowner > View Eneref Report

We pulled the trigger on that cost because we felt that if we put windows in and they don’t look right, it’s gonna be a disaster we can’t recover from.

Hunter Gaines - USC Program Director for Capital Construction Development > View Eneref Report

Most PTACs and VTACs can control temperature, but any humidity control is subsequent, or ancillary, to the temperature control. The Friedrich VRP unit specifically cools and addresses room humidity.

Rick Frey - Senior Director, Engineering Hilton Hotels > View Eneref Report

We love the room we have now and we’re glad that we did it.

Rich Wong - Homeowner > View Eneref Report

WE WANT BETTER LIGHT

Natural interior daylight offers a multitude of benefits beyond energy savings. It is the highest quality light source available for interior environments, it is flicker-free and it provides excellent color rendering and color balance. And natural interior daylight is one of the fastest greenhouse gas reducing paybacks you can buy, because it shrinks both energy bills and re-lamping maintenance costs. The fact is, introducing daylight into buildings provides energy savings, excellent lighting quality and more beautiful interior spaces.

  1. Does natural interior daylighting pay for itself?

    Lighting accounts for roughly one third of electricity used by commercial or educational facilities in the United States. Whereas natural interior daylight requires no energy beyond sunlight. And Natural interior daylight is about 10-times more efficient then rooftop PV cells for lighting a room.

  2. How do students preform under natural interior daylight?

    I am text block. Click ediThere is also plenty of evidence that daylighting improves occupant productivity in both schools and offices. Especially in learning environments, skylit classrooms provide a natural and stimulating space for teacher and student. While studies show that poor lighting adversely affects learning, daylighting has been proven to increase student performance in math and reading scores, as well as improving attendance. t button to change this text.

  3. How do students preform under natural interior daylight?

    I am text block. Click ediThere is also plenty of evidence that daylighting improves occupant productivity in both schools and offices. Especially in learning environments, skylit classrooms provide a natural and stimulating space for teacher and student. While studies show that poor lighting adversely affects learning, daylighting has been proven to increase student performance in math and reading scores, as well as improving attendance. t button to change this text.

  4. How do office workers preform under natural interior daylight?

    Studies show that office workers have few sick days. The human performance numbers in daylighting systems are important because the ROI for daylighting installations can sometimes be a difficult sell. In fact, the human performance gains can outweigh the energy savings, where human performance can be measured in financial terms.

The Cloud Changes Everything

"The Cloud Commuter is highly skilled, eco-friendly, doesn't take up valuable office space and won't be asking for health benefits.

Well Fosters a Holistic Formula for Better Health & Wellness

"When the renovation was complete, it was unbelievable. Students were astonished by the results." -- Ken Fibbi, Director of Buildings for the West Allegheny School District.

Climate Change Drives New Window Specs for Charleston Library
Room Air Conditioner Improves Ventilation in Emory University Dorm
Skylight Increases Worker Productivity for Staff Zone Office
Continuous Wall Insulation in Homes and Buildings
Inverter Air Conditioner Cuts Energy Use in Atlanta Highrise
Balcony Windows Bring Fresh Air into Rhode Island Home
Natural Daylight in Big-Box Retail Stores Boosts Consumer Sales
Classrooms Optimized With Natural Daylight Increase Student Performance
As Standard Option in Builder’s Home Designs, Skylights Increase ROI

FAQ: Why don't we see more natural interior daylight in buildings today?

Eneref Institute has identified seven primary reasons we don’t see more natural interior daylight in our buildings. To learn the seven market obstacles to daylighting, download Eneref Institute’s report.