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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There’s one thing that you don’t want, it’s aggravation and unhappy customers, so you want to sell them a good product. That’s a good product.

Howard Blady - Owner > View Eneref Report

I know about the filters because I’m friends with the custodian, but I don’t know if everyone else knows. It would make them feel like I feel—a little bit safer.

Ieisha Borden - Secretary > View Eneref Report

I think that the construction of the Velux skylights I specified in properties are just phenomenal. Just a beautiful piece of engineering. They're beautifully made… very thoughtful.

Shelley James - Founder > View Eneref Report

We absolutely love the Velux skylights in our artisan house. You can get really nice cross ventilation. You open up those skylights and it brings a gentle breeze right in that flows through the space.

Jeff Julian - Vice President > View Eneref Report

Skylights are not that expensive. It’s a really nice way to add some additional natural light if someone’s interested in feeling more outdoor-indoor.

Sarah Cooper - New Home Sales Consultant > View Eneref Report

Sponsor since 2023

Saudi National Bank

Sponsor since 2022

NYC Department of Education

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

The school facilities division is implementing a strategic approach to help maintain the health and safety of all building occupants.

John Shea - Chief Executive Officer > 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.

How Skylights Mitigate Climate Change

"You wouldn’t believe it, how much daylight it makes inside the building. I mean it’s phenomenal." -- Keith Bonn, Facilities Coordinator, Delta Gear.

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.

Operable Skylights in Sunrooms Lower Energy Load, Boost Air Quality
MERV-13 Filtration is The Best Kept Secret For NYC Boys & Girls High School
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

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.