I think this is the one he is referring to:
http://cgi.ebay.com/Power-Inverter-STACKABLE-TYPE-220-VAC-24-Volt-DC_W0QQitemZ290058518930QQihZ019QQ categoryZ41980QQcmdZViewItem
These are made by Hydrogen Appliances, they make some other stuff like PMAs and PMA based windmills. They have some interesting stuff and have some interesting thoughts on load diversion from PMAs. I would be interested in your thoughts on what hey advocated and their products.
I'm curious about the snake oil content!
Having followed some of your posts, it's pretty clear you are much more experienced in electronics than I. I'm sure ther are a number of us less knowledgeable types that would value some, more expert, analysis!
Here is their main web page url:
http://www.hydrogenappliances.com/
Thanks
Mike
OBTW, I have thought about purchasing some of these inverters myself to setup a backup AC capability. Problem is, I have 12 volt system in place, so the backup might become the primary.
For that matter I could setup a primary and backup system for the price of one equally sized Outback or Xantrex inverter. Since i will be using a little diesel DC gennyset to mainain batteries I don't need the onboard charging capability found in the usual inverter system.
T[ Parent ]
I probably would not buy a glass of water from them if I was dying of thirst either.
Just my opinion.
Just curious, have you had or know of folks who have had problems with HA or their products?
Specifically, I am interested in their permanent magnet alternators in an automotive frame. Seems like an efficient way to make power. I have a hard time grasping their dump load scheme to prevent battery overcharging.
If there are serious issues having to do with their products or practices I would be very interested in yoiur views.
Be assured, I 'm not challenging your assertion, but I sure would like to know more so I (and others) can practice due diligence in our choice of products.
Mike[ Parent ]
Well, I refuse to go back to their site to find glaring examples of misrepresentation but you will find very little information there that is truly factual. In particular, their power output claims almost always exceed the known limits possible for the diameter and quoted wind speeds. They used to have one they claimed made power in 1.8 mph winds thats just pure fairytale unless its very very large.
Even their name is a misrepresentation. Unless they actually started selling appliances that use hydrogen.
All simply my opinion but many others seem to feel the same but most don't say it in here.
Snake Oil plain and simple.
I only made that comment because I hate to see people suckered in by slick claims. Try searching this board for "hydrogenappliances" and you will find many others who either see them as the scammers they are or have been suckered by them.
As I said, just my personal opinions and others may or may not agree. It is your money so spend it well don't give it to the ripoff man.
T
Contact: IRC
[ Parent ]
Good advice and well taken!! I read your referenced posts.
I can build a Jim dandy DC Genny with a field current regulated 12 or 24 volt truck alternator, an XAR12 charge controller and a small prime mover (looking at a EB300 Kubota or a Honda XC160 gasser) that will get the job done just fine and skip all the issues of PMAs and H/A's hype. All for less about the cost of one iffy H/A PMA.
Again, many thanks!!!
Keep away from the Hydrogenappliances place, 20,000 leagues is about the closest possible distance from them, including, phone, telegraph, Internet, USPS, UPS, FedEX, Mule express, Donkey Express, walking pace, Jogging or Running and for the last three toward the opposite direction.
Case alternators for autos and trucks are limited to about 600 to 1200 watts with more than 500 ft minute cooling. So think about what they say they can produce and reality, also the specifications are done exclusive of each other and not concurrent.
I just visited the site, talk abut 25000 RPM. Oh boy, I wonder what type of balancing capabilities the have to avoid flying apart, also, the "TECHNOLOGY TO KEEP THE MAGNETS on the ROTOR" -- they seem to forget Torque problems.
And the generated power !!! I wonder if they, as well, supply "liquid Nitrogen" for life to keep the generator cool at high power levels (as their specifications detail) because the cooling "wind required" can not remove the amount of energy from such low size generator.
Can they supply the winding resistance ?.
Nando[ Parent ]
