Our windmill pulls power from the air and sends it to the electrical grid.Windmills and farms are a traditional combination, but there’s nothing old-fashioned about the 50kw wind turbine here at Morning Glory Farm. It’s a high-tech energy machine that essentially pulls power out of the air, generating enough electricity for a small neighborhood.

Yet with all that power, not a spark of it goes to the farm. We send it directly to the local grid, currently Eversource, which credits us back at the end of the year — to the tune of nearly three-quarters of our annual electricity use farm-wide. Here are a few other facts about our windmill that may interest and even surprise you:

  • Over six years, Morning Glory Farm has generated more than 715,000 kilowatt-hours (kWh) of electricity.
  • That’s enough to power 215 American homes, or 24,655 laptop computers, for one year.
  • We’ve kept 307,473 kilograms of carbon dioxide out of the atmosphere by producing clean wind energy.
  • That’s equal to the emissions from 93 cars on the road for a year, or 25 airline flights around the world.
  • The windmill averages hundreds of kWh a day, and sometimes 1,000 or more.
  • February is the month it produces the most energy.
  • July is the month with the least wind (as Martha’s Vineyard sailors know).
  • August is the month we use the most electricity on the farm.
  • The highest wind we’ve recorded was 42.7 meters per second in January, 2015. That’s 95.5 mph!
  • Our windmill’s height is 120 feet from the base to the center of the rotor.
  • A concrete counterweight underground serves as an anchor so it can’t blow down.
  • The three blades are each 30 feet long.
  • They always turn at the same speed, regardless of wind strength.
  • The windmill is programmed to stop spinning when the breeze drops or high winds exceed 58 mph.
  • It is a “downwind” machine, with no tail, which makes it quieter to operate.
  • Unlike a pinwheel, its turning blades face away from the direction the wind is coming from.
  • It was installed by Gary Harcourt of Great Rock Wind Power in Oak Bluffs.
  • The windmill is serviced twice a year, also by Gary.
  • In addition to reducing the farm’s energy bill and keeping carbon emissions out of the atmosphere, we also earn money for the electricity we generate by selling Renewable Energy Certificates.
  • There’s a real-time windmill monitor below and you can see a larger version online, along with a weather report, at bit.ly/power-dash.