National Windmill Day – May. 8, 2027

National Windmill Day
Categories:
Tags:
EnvironmentHistorical
Where:
Netherlands
Date change rule:
2nd Saturday of May
Holiday emoji:
🌬️

National Windmill Day harnesses attention every second Saturday of May, celebrating the iconic structures that shaped human history and continue to inspire renewable energy. Discover the enduring legacy of windmills, from their role in agriculture and industry to their modern evolution as wind turbines. Explore local mills, learn about their mechanics, and advocate for sustainable energy solutions.

Want to sponsor National Windmill Day? Learn how

Expected National Windmill Day Deals

While direct commercial deals are less common, National Windmill Day inspires educational and experiential opportunities. Look for local historical societies and museums, such as the Dutch Windmill Museum or Old Mill Museum, to host special tours and demonstrations. Renewable energy companies like Ørsted and Vestas may share insights into modern wind power. Consider supporting organizations like the Society for the Preservation of Old Mills (S.P.O.M.) through donations or volunteer efforts. We will update this page with confirmed live events and awareness campaigns as May 9 approaches.

Platform Guide for National Windmill Day

LinkedIn

Tag National Today (linkedin.com/company/nationaltoday) and use #NationalWindmillDay. Share insights on sustainable energy or historical preservation.

X/Twitter

Mention @NatlToday and use #NationalWindmillDay. Share historical facts, modern wind power news, or photos of local mills.

Facebook

Mention National Today (facebook.com/nationaltoday) and use #NationalWindmillDay. Share local mill events or community discussions about renewable energy.

Social Media Tips for National Windmill Day

Individuals

Visit a local historical windmill or wind farm, if accessible, and share your experience. Learn about the mechanics and history of these fascinating structures.

Creators

Produce a short video or photo essay documenting a visit to a mill, explaining its historical significance or the science behind wind power.

Brands

Highlight your company's commitment to sustainability or historical preservation. Share educational content about renewable energy or the role of windmills in history.

Organizations & Brands for National Windmill Day

  1. Society for the Preservation of Old Mills (S.P.O.M.)

    Founded in 1972, S.P.O.M. is a non-profit organization dedicated to encouraging the preservation, restoration, and operation of historic mills in North America. They offer resources and support for mill enthusiasts and preservationists.

  2. Ørsted

    A global leader in offshore wind power, Ørsted is a Danish multinational power company that develops, constructs, and operates wind farms. They are at the forefront of modern wind energy technology.

  3. Vestas

    Founded in 1945 in Denmark, Vestas Wind Systems A/S is a leading global manufacturer, seller, installer, and servicer of wind turbines. They have installed over 160 GW of wind power capacity across 88 countries.

  4. General Electric (GE Renewable Energy)

    GE Renewable Energy is a division of General Electric that provides end-to-end solutions for customers seeking reliable and affordable green power. They are a major player in the design and manufacturing of wind turbines globally.

  5. Dutch Windmill Museum

    While many local museums exist, the Dutch Windmill Museum (e.g., in Holland, Michigan) celebrates the rich heritage of windmills, particularly those influenced by Dutch design and engineering. It serves as an educational hub for visitors.

  6. National Trust

    A conservation organization in England, Wales, and Northern Ireland, the National Trust protects and opens to the public historic houses, gardens, and ancient monuments, including several preserved windmills across the UK.

  7. Siemens Gamesa

    A global leader in the wind power industry, Siemens Gamesa Renewable Energy is a Spanish-German company that manufactures wind turbines. They offer a broad portfolio of onshore and offshore wind power solutions.

National Windmill Day Hero

Thomas O. Perry

Thomas O. Perry (1847–1927) was an American engineer who revolutionized windmill design. He is credited with designing the first successful steel windmill, the 'Aermotor,' in 1888, which made wind power more accessible and efficient for farmers across the American West, particularly for pumping water.

History of National Windmill Day

The earliest windmills date back thousands of years. Most windmills were used to process grain. In countries like Holland, windmills pumped flood water and redirected it for agricultural purposes. It’s believed that without windmills, the Dutch would have lost their towns and cities to floodwaters. Even today there are over 1,000 windmills in Holland, some of which are used to drain flood water and process grain. Early models used wooden parts, but as technology progressed windmills were constructed using stronger materials like metal. The first windmills in Europe were known as ‘post mills.’ These simple wooden structures were built on stilts above the ground. They weren’t as sturdy or as powerful.

Post mills evolved into tower mills in the 12th century. At this point in European history, only nobles had the resources to construct mills. Tower mills were made of brick or stone, which made them more reliable in stormy conditions. Their fans could also catch more wind, generating more power and processing grain much faster. Tower mills were a status symbol and this spurred a rush for their construction throughout Europe. By the 17th century advances in engineering had grown. Now the smock mill came into being. It was designed to be a cheaper, lighter, easier to build, and more efficient version of the tower mill. They quickly became the most popular type of windmill. This is partly because it was easier to build on wet terrains — an essential quality for the Dutch. Soon hundreds of windmills blossomed, turning sleepy villages into industrial centers almost overnight.

National Windmill Day originated in Holland, but it’s also celebrated in other Western countries. It commemorates the long history of windmills and their role in early European societies. It also looks to the future of wind energy, a renewable, clean energy source.

National Windmill Day timeline

500 — 900 A.D.
The First Windmills

The Persians become the first civilization to develop windmills.

1100 A.D.
Introduction of Windmills in Europe

Windmills are introduced to Europe, coinciding with the Crusades.

1850
New Style of Windmill in the U.S.

A new type of windmill is introduced in the U.S. — one that’s built on a skeletal steel structure, with a small rotor powering the fan blades.

1930
Decline of Windmills in the U.S.

Windmills become less popular with the introduction of rural electrification in the U.S.

1973
Windmills Repurposed for Energy Production

Originally used for milling grain and pumping water, windmills start producing electricity in the 1970s.

How Businesses Can Celebrate National Windmill Day

Local historical societies, museums, and renewable energy companies can honor National Windmill Day by hosting open houses, educational workshops, or guided tours of local mills. Businesses can also highlight their commitment to sustainability by showcasing energy-efficient practices or supporting organizations dedicated to historical preservation. Consider partnering with local schools to offer educational programs about the history and future of wind power.

National Windmill Day FAQs

When is National Windmill Day?

In 2027, National Windmill Day falls on Saturday, May 8. This annual observance encourages communities to engage with the rich history and future potential of wind power.

How many windmills are there in the world?

While precise figures are hard to pin down, thousands of traditional windmills remain, particularly in Europe, alongside a rapidly growing number of modern wind energy installations worldwide, reflecting a global shift towards renewables.

What is the purpose of National Windmill Day?

It serves to raise awareness about the engineering marvels that are windmills, highlighting their past contributions to society and their continued relevance in the renewable energy landscape, particularly in the context of climate change.

What is the difference between a windmill and a wind turbine?

Though both harness wind, a windmill’s primary function is mechanical work, often for processing materials, whereas a wind turbine is an advanced device designed solely for the production of electrical power, feeding into modern grids.

National Windmill Day Activities

  1. Visit a windmill near you

    If you’re fortunate enough to live near a windmill, be sure to visit one. Some places give guided tours that let you check out the windmills’ inner workings.

  2. Learn how windmills work

    The design, construction, and function of windmills are a marvel. On National Windmill Day take some time to study windmills and how they work.

  3. Take a trip to Amsterdam

    If you want to go big on National Windmill Day, visit the city of Amsterdam that’s home to many historic windmills. This holiday originated in the Netherlands, so you’re assured of elaborate celebrations and fun events.

5 Interesting Facts About Windmills

  1. Oldest windmills

    Some of the oldest windmills are in the Netherlands.

  2. European industries thrived on windmills

    During the 18th and 19th centuries, Europe had more than 200,000 windmills that processed grain, paper, oil, timber, gin, mustard, and other essential materials.

  3. Windmills always turn counter-clockwise

    Nearly all windmills turn counter-clockwise, except for windmills in Ireland.

  4. One windmill can power multiple homes

    Operating at full capacity, the strongest windmill can power about 500 homes.

  5. Most wind power

    China leads in countries with the most wind power, with more than double the installed capacity of the U.S., the next country with the most wind power.

Why We Love National Windmill Day

  1. Promotes clean energy use

    Windmills are powered by clean energy, making them good for the environment. This is especially good considering the state of the environment today.

  2. Windmills are fascinating

    From their iconic look to the way they harness wind energy for specific functions, windmills are a great invention. Windmills are fascinating sights to behold.

  3. Recognizes human ingenuity

    Windmills prove that we can come up with environmentally sustainable ways to generate power for our personal use. Do some research today and see what other feats humans have conquered!

National Windmill Day dates

Year Date Day
2026 May 9 Saturday
2027 May 8 Saturday
2028 May 13 Saturday
2029 May 12 Saturday
2030 May 11 Saturday