Wind turbines and sailboats share many commonalities. Both are super advanced, highly popular and lovable, low cost and protective of the environment, but do you know all of the 19 1/2 ways wind turbines and sailboats are similar?
1. Sailboats and wind turbines have advanced way beyond their predecessors.
Sailboats usually have some form of a fiberglass hull. Wind turbine blades are predominantly fiberglass, as are the nacelles (the ‘gear’ boxes that contain the generator). Both use lots of molded fiberglass to get their structure and fiberglass manufacturers rejoice.
4. Sailboats and wind turbines use advanced aerodynamics.
Wind turbine blade aerodynamics help turbines capture wind more efficiently. Sailboat hulls use advanced “hydrodynamics” (since they’re in water), but those sails definitely have aerodynamic components. #math #physics
5. Sailboats and wind energy get priority treatment.
On the water, sailboats generally have “right of way“, meaning motor boats have to steer clear – this is for boating safety. In a deregulated utility market, wind power gets “picked” first for dispatch, along with other renewable energies – this is done to reduce ratepayer costs. Wind wins!
6. Sailboats and wind turbines get a boost from a good cleaning.
Boats beget barnacles, blades beget bugs. A good inspection and scrub can help boost performance and efficiency. Specialty paints can also help (commonly referred to as “anti-fouling” paint). Boats also get slime, and blades also get soil; but those stuffs didn’t suit the alliteration.
7. Sailboats and wind energy have backup plans.
The wind doesn’t always blow; but, the whole point to sailboats and wind farms is that you use the wind when you can. Every moment you’re using the wind is an extra moment you’re not burning fuel. In a sailboat’s case, that fuel may be a diesel or gasoline motor; with wind farms, that other fuel could be coal, natural gas, nuclear, solar or some other source of power generation. In some instances, wind farms have actually provided the back up to other sources of power generation. The old sailor proverb goes: “Pray to God, but row to shore.”
8. Heavy weights keep sailboats and wind turbines upright.
Some sailboats use weighted keels for ballast, to keep the wind from tipping the boat over. Wind turbines have sturdy foundations, usually made of concrete, or pile driven to hold the turbine in place. Which would you rather tip over: a sailboat/wind turbine or the Exxon Valdez/Deepwater Horizon? (You’re not allowed to answer “All of the Above”…)
9. Sailors and coastal wind farms benefit from the Sea Breeze Effect.
The Sea Breeze Effect occurs when air temperature differentials between the land and large waterbodies (oceans, lakes, etc.) results in wind blowing; this effect is prominent on hot summer afternoons when utility load demands are high. Those hot summertime afternoons and associated sea breezes also coincide well with a sailor’s need to get to shore in order to make the Margaritaville happy hour. (Seriously, this is no joke. We’ve studied it and have data. Peak times for the sea breeze effect, utilities power demands and happy hours are 3PM-7PM.)
10. Sailboats and wind farms have minimal environmental impact.
Consider your alternatives.
Photo credit: Joe Heller,
11. Sailboats and wind turbines change direction to capture the wind.
Sailboats use a rudder to tack (change direction) to better capture the wind, and avoid collisions. Wind turbines use yaw systems to face into the wind. Sailboats also yaw where a boat rotates on its vertical axis, but that may not be intentional. While tacking is usually intentional, getting whacked by the boom and sailing into the water may not be. Tack = DUCK!
12. Sailboats and wind turbines can be finely adjusted to maximize wind power.
Sailboats “trim” their sails and use a “jib” sail to help maximize wind power (or throw folks to the “high side” during “heeling” to prevent capsizing). Wind turbines “feather” blades in rough weather, like hurricanes, to prevent too much blade exposure and slow rotation. Blade feathering can also be called pitching, which means something radically different in the sailing world, and is usually associated with “heaving” as well; so I’ve chosen to not mention it.
13. Sailors and wind farm developers know how to “read the wind”.
Frequently, sailors and wind developers use similar equipment to read the wind: anemometers, weather vanes and wind forecasts. Wind speed is important, but also wind direction. Wind direction affects sailing conditions, but also predominant wind directions also affect how a wind farm should be spaced out.
14. Sailors and wind farm developers pay attention to geography.
If a sailor is in a protected cove, s/he knows the winds out on the open water will be much stronger than being experienced in a cove. Similarly, wind farm developers know that wind speeds are better at higher altitudes. That’s why harbors are popular for sailboats, and why wind turbines are getting taller.
People wear sailboat jewelry, buy sailboat art, snap bajillions of pictures of sailboats, decorate their rooms in nautical themes, romanticize sailors and fantasize about sailing in novels. According to The Sailing Company annual market report on sailing, more people are sailing. PEOPLE. LOVE. SAILING. Similarly, wind power is wildly popular. Sailing and visiting wind turbines are extremely popular ecotourism activities. And just 7% of Americans have “unfavorable” impressions of wind energy, according to a recent survey by Navigant Research. If you hate sailing or wind turbines, that’s just…unAmerican! #iHEARTwind
Need additional energy onboard? Put a small wind turbine on. Need the fastest sailboat ever built? Get a wind turbine manufacturer (Vestas) to build it. The Vestas Sailrocket 2 has the world record at 65.45 knots – that’s 75 miles per hour. The competition was literally blown away.
19. Sailboats and wind turbines use the same fuel: The wind!
Photo credit: Distant Shores.
20. The fossil fuel industry is spending millions of dollars to actively oppose wind energy and sailboats.
Well…at least half of this is true.
Photo credit: Dave Granlund
Know any sailors that like wind energy? Head on over to the Sailors for Wind Power Facebook group!