For Developers Holiday Deals For Business
National Renewable Energy Day

March 21

National Renewable Energy Day

An environmental advocacy day on March 21 promoting awareness of renewable energy sources such as solar, wind, and hydropower to combat fossil fuel overuse and support a sustainable future.

Yearly Date
March 21
Observed in
United States
Category
Nature
Founding Entity

Unknown

First Observed
2004
Origin

Community Origin

The observance began in 2004 as an initiative by environmental advocates to spotlight the need for clean energy and encourage adoption of sustainable energy practices.

Holiday Calendar
Last updated February 26, 2026 by the Holiday Calendar Team
Have an update or spot an error?

Introduction

Get ready to embrace clean and sustainable energy sources on National Renewable Energy Day, which falls on March 21! This day is all about promoting and celebrating the use of renewable energy such as solar, wind, hydro, and geothermal power. It was first observed in 2005 by the American Solar Energy Society as a way to raise awareness about the importance of transitioning to renewable energy sources for a greener future. On this day, we can all take small steps towards reducing our carbon footprint and supporting the growth of renewable energy industries. Let's celebrate Mother Nature and her endless supply of clean energy!

National Renewable Energy Day Timeline

1873
Discovery of Solar Energy
Scientist Willoughby Smith discovered the photoconductivity of selenium, an essential element in modern solar cells.
1891
First Solar Heater
Inventor Clarence Kemp patented the first solar water heater.
1979
First Solar Power Plant
The first commercial photovoltaic power plant was set up in Saudi Arabia, UAE, and Jordan to power telephone repeaters.
1991
First Wind Farm
The first major wind farm in the U.S. was installed in the San Gorgonio Pass in California.
2005
U.S. Energy Policy Act
The U.S. government introduced the Energy Policy Act, providing extensive incentives for the production of renewable energy.
2011
National Renewable Energy Day Initiated
National Renewable Energy Day was first celebrated, aiming to raise awareness of renewable energy sources.

How to Celebrate National Renewable Energy Day

1

Go on a renewable energy tour

Visit local renewable energy sites such as wind farms, solar panel installations, or hydroelectric plants. Not only will you learn about renewable energy, but you'll also get to see it in action.

2

Switch to renewable energy sources

Make a commitment to switch to renewable energy sources for your home or business. This could include installing solar panels, using a geothermal system, or purchasing renewable energy credits from your utility company.

3

Attend a renewable energy conference

Check out local conferences or events focused on renewable energy. You can learn more about the latest innovations and network with others who are passionate about renewable energy.

4

Host a movie night featuring documentaries about renewable energy

Invite friends over for a movie night and watch documentaries about renewable energy. This is a great way to educate and inspire others about the importance of using clean, renewable energy sources.

5

Volunteer for a local environmental organization

Spend the day volunteering for a local environmental organization that promotes renewable energy. This could include helping with clean-up efforts or participating in outreach events to educate the community about renewable energy.

Why National Renewable Energy Day is Important

A

It promotes the use of sustainable energy sources

National Renewable Energy Day raises awareness about the importance of transitioning to sustainable energy sources like solar, wind, and geothermal power. This helps reduce our dependence on fossil fuels and minimize our impact on the environment.

B

It supports the growth of green jobs

By shifting towards renewable energy sources, we create new job opportunities in clean energy industries. National Renewable Energy Day raises awareness about these potential careers and encourages individuals to consider pursuing them.

C

It showcases the benefits of renewable energy

From reducing air pollution to creating a more resilient energy system, there are many benefits to using renewable energy. National Renewable Energy Day highlights these advantages and inspires individuals and businesses to make the switch.

Holiday Dates

Year Date Day
2023 Tuesday
2024 Thursday
2025 Friday
2026 Saturday
2027 Sunday