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Renewable Energy Systems

Mariah Power Windspire

Bad all around

wildspirit

Pros: The birds like sitting on it when it isn't turning.

Cons: low output, poor customer service, broken

I purchased a Windspire a few years ago. I've never been happy with the power output. Since then I have been through 2 inverters and due to a faulty shorting clip, the unit sheered off in high winds and the top had to be replaced. The last episode was once again after some heavy winds and the brake wouldn't kick off. After waiting several months for a replacement inverter, I installed it and...
(read more)
poor to very poor
poor to very poor
The unbreakable wind turbine
The unbreakable wind turbine
German Engineering at its best
German Engineering at its best

Viessmann Vitosol 100

Pros: Value/Quality Made, Easy to Install, Great Technical Support

Cons: None, it is the best panel for the price.

Manufacturer

175 Results
LED lights

LED lights

“This product is awesome ! I"ve installed them in my living room and i put the 7 colors gradually changing mode ! What an awesome ambiance light ! its the best ! the shipping was incredibly fast ! Thanks a lot will definitly buy from you guys again.” --CarlsoRona

100% Positive Reviews
Southwest Windpower Skystream 3.7 Residential Wind Generator

Southwest Windpower Skystream 3.7 Residential Wind Generator

“Over all I am extremely happy with my Skystream 3.7. I installed it in back in September of last year 2007. Initially I had a problem that arose two months after I installed it. It had a software problem that shut the machine down for over a month and a half, but Southwest Wind Power switched it out with a new Skystream turbine and it has been running great ever since. I installed the...” --joshuajanes

44% Positive Reviews
Atlantis Energy Systems Sunslates Roof Tiles

Atlantis Energy Systems Sunslates Roof Tiles

“   BUILDING INTEGRATED SOLAR PV  ·         4.3kW Atlantis Sunslates Building Integrated PV System with batterie backup  ·         Beacon Power M5 Inverter  ·         Battery Bank with 8 SunXtender sealed marine batteries  ·         Software monitoring with Beacon Power Software     The system was initially purchased in 2001 and consisted of 336 Siemens II Sunslates. The installation was...” --solargeek

0% Positive Reviews
Home Energy HEA Energy Ball V100

Home Energy HEA Energy Ball V100

This beautiful and low-noise turbine is being characterized by the six curved rotor blades which are attached to the rotor hub with both ends. When the Energy Ball® rotor turns it resembles a sphere, and as a distinct feature the wind blows parallel to the rotor hub through the rotor. This wind flow direction (flow pattern) forms a key contrast with classic sphere shaped Darrieus turbines,...

Mariah Power Windspire

Mariah Power Windspire

“ Check the web site at www.mariahpower.com - unless you are in an area with exceptional wind speeds the output is minimal.  At 5 m/s (12 mph) wind speed the puts out between 100 and 150 watts. Using the commercial capacity factor of approx 0.35 (say 150*8760*.35/1000) you may reach 500 kWh annual production. The unit base price is about 6,000 USD plus what ever else is required. The projected...” --Russ

40% Positive Reviews
 Windmax Green Energy 5 Blade, Wind Turbine, 650W Max/12V, High Output, Hybrid

Windmax Green Energy 5 Blade, Wind Turbine, 650W Max/12V, High Output, Hybrid

“ Even iin higher winds, it didn't produce significant power, although it responded well in lower winds. When connected along with other products, such as solar panels, it doesn't produce after the panels are producing a higher charging rate. A panel of 300 watts produces more charging power than this unit. My panels produce over 12 amps of charging power.   It is produced in China, so...” --chico4

25% Positive Reviews
Sanyo HIT Standard Solar Panel

Sanyo HIT Standard Solar Panel

“We have a 4kW array made up or 20 of these 200W panels. The system powered on in November 2007 and has been working great, even here in the rainy NW corner of Oregon. You can see the system's performance in near real-time here: http://tinyurl.com/2vxq37 Now, in early April, it is generating power from 8AM till 8PM. By using these higher efficiency panels, we were able to buy fewer...” --celticsolar

100% Positive Reviews
Solio Classic Universal Hybrid Charger

Solio Classic Universal Hybrid Charger

“This was part of my lovely prize pack, so I really want to be able to write up a glowing report.  However, this is only the begining of my review...as I have not successfully used the solio yet!! We took it with us on our trip to Canada.  I charged the thing up, no problem.  However, I didn't realize that if I wanted to use the solio, I needed to bring a cord with me (the instructions are...” --nitedreamer

75% Positive Reviews
Windmax 500W Hybrid Wind Turbine

Windmax 500W Hybrid Wind Turbine

“I purchased this system a couple months ago so I have had time to see how it works. When there is enough wind it works great but in low wind conditions it actually drains power from the batteries. For instance, my solar panels had my batteries full and it was dumping into the loader when a slow wind came up and immediatly stopped the dumping. Within a few hours my batteries were nearly dead!...” --milldrain

50% Positive Reviews
Village Green Energy Renewable Energy Credits

Village Green Energy Renewable Energy Credits

“I had a great experience buying RECs through VGE. The site was intuitive and I quickly received a package from them with a decal and a certificate recognizing my contribution. At least for me, the value proposition of RECs is easier to understand than Carbon Offsets. In states where major utilities are required to purchase some of their power from renewable sources, if enough people purchase...” --Deej

75% Positive Reviews
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