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#RightToDaylight
We Need Natural Interior Daylight

Daylight Has Supported Humanity Since the Dawn of Our Existence.

Daylight is what grows the plants that sustain our food sources and create the oxygen we breathe. Daylight is the light source that has shaped human evolution from the very beginning.

More than just a visual aid, we feel daylight deep in our being. It sets our circadian rhythms and connects us to sky conditions so that we intuitively know the time of day and year. It guides our daily lives, telling us when to wake and, in its absence, when to sleep.

Daylight is the Perfect Light Source for Seeing the World Around Us.

Under daylight, colors appear true and details are more vivid. Daylight has a positive effect on our cognition and our emotions. To “never see the light of day again” is a punishment that represents the absolute depths of despair.

Daylight not only gives life, but hope. It’s a metaphor that translates across language, cultural, and societal barriers; it speaks to something deeply ingrained in us as human beings.

Daylight is not a privilege. It’s a natural right.

273Billion kWh

US Energy for Lighting

Electric Lights Use Energy

Lighting uses 273 billion kilowatt-hours of energy across the US.

That’s 7% of total US energy consumption.

Daylight Uses Zero Energy.

On November 7th, 2018, Eneref Institute wrote an open letter to UN High Commissioner for Human Rights.

“Eneref Institute holds the position that favorable conditions at work entails building facilities that are designed for occupant wellbeing.”

Read full text of letter.
#RightToDaylight
We Can All Take Actions

What We Can Do

People need windows and skylights. Exposure to daylight is healthy, it saves energy, it uses no electricity, and it burns no fossil fuels.

Make an effort to notice skylights and windows at the grocery store, at work, at the doctor’s office, even in your own home. If you don’t see enough windows, tell someone. Building managers, facility operators, architects, construction companies… they need to know that we care about natural daylight.

They need to hear it from all of us: everyone has a #RightToDaylight.

What We Should Know

  1. NATURAL DAYLIGHT PAYS FOR ITSELF IN ENERGY SAVINGS

    Lighting accounts for roughly 20 percent of the 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 than rooftop PV cells for lighting a room.

    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.

    See report: Seven Market Obstacles to Daylighting

  2. NATURAL DAYLIGHT IS BETTER LIGHTING THAN ELECTRIC LIGHTING

    There 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.

    Studies show that office workers have fewer 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, human performance gains can outweigh the energy savings, where human performance can be measured in financial terms.

  3. NATURAL LIGHT IS HEALTHIER THAN ELECTRIC LIGHTING

    According to Buildings Commissioner Rick Chandler, small steps towards designing more sustainable buildings can make a big dent in the City’s carbon footprint – reducing emissions as well as energy bills. Through expanded benchmarking Mayor de Blasio’s vision of reducing 80 percent of our carbon emissions by 2050 might be realized.