Good Sam Club Open Roads Forum: Portable Wind Turbine as a power supplement?
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Portable Wind Turbine as a power supplement?

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  


Senior Member

Joined: 12/13/2005

View Profile

Posted: 09/23/20 03:37pm Link  |  Quote  |  Print  |  Notify Moderator

profdant139 wrote:

It was a fun idea, though. Keep thinking outside the box!!

.......and another fun idea.......

maybe change your ID to "Rube Goldberg, Jr." ??



Washington State

Senior Member

Joined: 08/19/2020

View Profile

Posted: 09/23/20 06:34pm Link  |  Quote  |  Print  |  Notify Moderator


I wanted to see if you could add an inline speed reducer gearbox, between the blades of the turbine, and the generator itself. So that its running speed can be increased to between 50 - 70 mph. Thus enabling you to mount a horizontal shaft turbine through the roof, to generate power while driving at freeway speeds.

There's really no reason to do that, it's just a very lossy way to capture power, you're better off tapping your alternator (possibly adding a second/bigger alternator). By the time the energy reaches your wind powered generator, the power has gone from the engine to the transmission to the wheels to the wind and finally to your turbine and generator. You're losing energy at each step so you're better off just tapping it off the engine directly.

Then if you still want a wind turbine, you can optimize it for ambient wind speed, which is going to be a lot less than 70mph unless you camp in hurricanes a lot.


My House?

New Member

Joined: 09/17/2020

View Profile

Posted: 09/24/20 02:48pm Link  |  Quote  |  Print  |  Notify Moderator

Dtank wrote:

maybe change your ID to "Rube Goldberg, Jr." ??

Hey, I'll take it. lol

I love thinking outside the box. Especially in these situations. There are so many great (and terrible) ideas in the "#vanlife" community. This idea may have been a bust, but I learned something from it.

Again, I do appreciate all the advice given.


Vestavia Hills, AL, USA

Senior Member

Joined: 12/01/2002

View Profile

Posted: 09/27/20 06:10pm Link  |  Quote  |  Print  |  Notify Moderator

If you can work out a way to capture only the regenerative energy available when you are purposely slowing down or going down hill, you may have something. You certainly won't gain anything by using the engines power (fuel) to generate electrical power over and above that required to run the vehicle's essential functions.


Davison Michigan (East of Flint)

Senior Member

Joined: 07/04/2006

View Profile

Posted: 09/19/21 07:44am Link  |  Quote  |  Print  |  Notify Moderator

One of the differences between wind and solar is this.
I have heard someone say "Solar won't work because the sun does not always shine"

The sun has been shining for I have no idea how many thousands of years, and it's expected to shine for millions more. no breaks, no interruptions, constantly shining, (The speaker just turned his face away from the light of truth and thus tells lies)

WIND. on the other hand. does not always blow.

So though I can count on an average of 10 or more hours of sun daily.
Wind... Not so. (The rest of the time the sun shines on the backside of the planet, back side from where I'm standing that is)

Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times


Spokane, WA

Senior Member

Joined: 09/08/2003

View Profile

Posted: 09/19/21 08:19am Link  |  Quote  |  Print  |  Notify Moderator

ToastHater wrote:

A second alternator makes a ton more sense as an easy solution.


My truck has a factory second alternator. I upgraded the charge line between the truck and camper with 4AWG cable. Here's how I did it

Then this year I added a Victron DC to DC Charger. Here's a video on that project

2009 Silverado 3500HD Dually, D/A, CCLB 4x4 (bought new 8/30/09)
2018 Arctic Fox 992 with an Onan 2500i "quiet" model generator



Senior Member

Joined: 10/08/2000

View Profile

Posted: 09/19/21 10:08am Link  |  Quote  |  Print  |  Notify Moderator

cyrus799 wrote:

This ECO-WORTHY solar power kit is amazing because it combines the power generation capabilities of a wind turbine with the sun-catching skills of a solar panel. With such a wide range of operations, this kit can offer the user with a virtually constant source of electricity. It's ideal for traveling to places that aren't as windy but receive a lot of sun, or vice versa.

A little short on FACTS. Would like to see a wind speed vs output.

The 400 watts they advertise is produced at 13 MPS= 29 MPH. WOW.

Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

Diesel RV Club:


Portland, Oregon

Senior Member

Joined: 06/22/2005

View Profile

Posted: 09/19/21 10:30am Link  |  Quote  |  Print  |  Notify Moderator

e.g. your trying to make a perpetual motion machine. Can't defy the laws of physics, the energy you get from the windmill on top of the trailer etc. will be less than the extra energy required to drive down the road.

If what you want is to charge the battery(s) while you are driving the alternator will do that, and if needed a second alternator and alternators are very efficient and will likely have less energy loss that a wind turbine on the roof would.

BTW I can easily charge a band of four GC-2 batteries from my single alternator when driving. A days drive 6-8 hours will bring them from about 50% SOC to 80%+ pretty easily.

2011 Keystone Outback 295RE
2004 14' bikehauler with full living quarters
2015.5 Denali 4x4 CC/SB Duramax/Allison
2004.5 Silverado 4x4 CC/SB Duramax/Allison passed on to our Son!


Hampton, Va

Senior Member

Joined: 01/03/2007

View Profile

Posted: 09/19/21 12:07pm Link  |  Quote  |  Print  |  Notify Moderator

I was thinking about building something like a ram air turbine using a high output alternator turned by a fan blade with everything mounted inside of a ducted shroud. I could either mount it on my truck rack or mount it on a bracket installed on the trailer tongue. Mounting it on the trailer tongue may create the least amount of drag since the front wall of the trailer creates a massive amount of drag anyway. It would be used to charge a battery bank while towing.

This would however depend on how big the fan has to be and how many rpms it could produce at highway speeds.



Senior Member

Joined: 01/05/2007

View Profile

Posted: 09/19/21 01:18pm Link  |  Quote  |  Print  |  Notify Moderator

oops, noticed the OP posted this back a yr ago, nothing like bringing a thread back from the dead..

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  

Open Roads Forum  >  Tech Issues

 > Portable Wind Turbine as a power supplement?
Search:   Advanced Search

Search only in Tech Issues

New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2022 CWI, Inc. © 2022 Good Sam Enterprises, LLC. All Rights Reserved.