Monday, July 20, 2009
Hummer wind turbines
As of today I am a dealer of the Hummer wind turbine. It is not set to be released until the end of August or September. I will be bringing more information about this turbine as it becomes available in the next few months. Here is a link to the companies web site. So this will be the fourth turbine that I can offer to people that are looking to have a turbine for their selves. Skystream, Proven, Bergey and Hummer are the units that I now carry.
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7 comments:
I live off grid in Africa (on-grid is hardly worthwhile anyhow) and am leaning towards a 10,000kw Hummer so as to cut down on generator hours. Price is right and it all looks ideal for me BUT, it's Chinese and I am unsure of the quality/longlevity. I see it is one of the four you recommend. Does this mean that you have checked them out thoroughly and are satisfied?
Your comments would be highly appreciated.
John,
I have looked at this unit in person and it looks like it is very well built. This company has just come to the USA. As a matter of fact I can not even use it yet because they are not UL listed. Off-grid use they are fine. The only draw back I can see is the inverter and rectifier are very large in size. If a person does not have a lot of room then this is going to be tough. I am sorry I can not give you a good answer on how reliable they are. They hold potential and time will tell. Now the Bergey on the other hand is very reliable but it is pricey. But it does have a good track record.
Thanks for that info JD. I am inclined to go for the Hummer. Another disadvantage I see is that you need 25 x 12 volt batteries in series to get to 300 vdc. Should one battery develop a problem then the whole bank will be affected. I assume that the controller can sense this and shut down but it still leaves you to go thru 25 batteries to find the faulty one.
I see one can add solar panels but once again I assume you would need 25 in series to reach the required voltage. I was hoping to add a few at a time as I can afford them.
I spent more time going thru your blog, very interesting!
John
Good luck! keep me informed of your progress and send pictures. I am sure there are people out there including myself that would love to see how things turn out for you.
Hi JD, back again asking for advice. Since we last spoke I have had a complete rethink about which wind turbine to go for and have decided to rather do a hybrid system with a large array as well as wind. I have located a Whisper 500 24 vdc here in Tanzania. It is old stock (2007) but never used and the price is good. I see that you do not install this turbine. What is your opinion on this turbine as I have seen some disgruntled owners on the internet.
Your advice would be greatly appreciated.
Hi John,
I have not had a reason to install the Whisper turbine. I can get it and install one if someone wants it. I have heard there is problems with these units. But if it is like anything that SWWP makes, their turbines all have problems. Sometimes you get luck and get one that is fine other times you don't. Of all the Skystreams I have installed 1 out 3 have failed. Not a very good record.
I have another 1.5kw turbine that is made in Canada that is made for on-grid or off-grid situations.
http://www.raumenergy.com/turbine1kw.html
You may want to check this one out. It is a little bigger, 1.5kw, and has a battery charge that can do 24vdc or 48vdc.
http://www.raumenergy.com/battery_charger.html
I have heard good things about this company and their turbines. This unit is not that expensive, about $6600.00US with 49' lattice tower, shipping not included. Actually its big brother the 3.5kw is the one that I am now pushing because of its low wind cut-in speed. Which can be a problem here in Michigan. I hope that helps. All I can say about the Whisper is if you are reading that there are problems then I would believe it. Just because of my experience with their other products.
Let me know if you have any another questions.
Thanks very much for your advice. All of the complaints I saw on the Internet were ralated to the high voltage on-grid models not the low dc voltage battery charging models. I also know that over the years they must had sold hundreds of these. I can get this unit for $5970 here in Tanzania which seems very good to me.
BUT, what would the Raum 3.5 kw off-grid 24/48 volt model cost without a tower ex US? Or even the 1.5kw model with no tower? I certainly like the idea of low cut-in speed.
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