Vertical Axis Disk Wind Turbine

May 21, 2011 by  
Filed under Wind and Solar

How the turbine works: Rotatable shutters mounted on a circular disk automatically open when directed into the wind, irregardless of the wind’s direction. Pairs of upper and lower shutters are geared together. The lower shutter acts as a counterweight to the upper shutter. The bottom shutter opens in the downward direction and its weight helps to lift the upper shutter in the upward direction, as the wind applies an opening force against both shutters. When the shutters reach the vertical position, stops prevent them from opening further and the force of the wind is transferred from the open shutters to the circular disk. And the circular disk is attached to the vertical axis for power output. The circular disk, shutters, and outer vertical axis rotate together. The outer vertical axis is mounted via bearings over an inner vertical axis that is stationery. The shutters are blown closed by the wind (no stops in the opposite direction) as they reverse direction during their rotation and move into the wind on the opposite side of the wind turbine. When the wind is not blowing, the shutters open by gravity because the lower shutter is weighted to be slightly heavier than the upper shutter and it therefore can cause the upper shutter to open via the force of gravity as the two shutters are geared together. Wind blows against the open shutters and the open shutters with stops apply a force against the disk, but the open shutters with no stops (opposite side going into the wind

What Affects Solar Panel Costs

May 17, 2011 by  
Filed under Wind and Solar

www.solardave.com SolarDave: Does Akeena Solar Get Their Solar Panels at a Discount price for buying them in volume? Eric Bowman: There are a lot of things that solar panel costs, volume, quality, there are a lot of components to it, we are the only solar intergrator that has developed our own propiritory panel so we outsource the manufacturing of that to SunTech which at the end of this year will be the largest manufacturer in the world. They only make the Andalay solar panel for Akeena and Akeena only. It is our patent and our panel noboby can source the panel or install in the panel in the United States. Because we are a very large solar intergator, one of the largest and we are publicly held and we are on the NASDAQ:AKNS because we only sell that one type of panel for that residentail application our volume is not like a Sharp or a BP that might sell to multiple brokers across the United States. But we are extremely competitive when it comes to cost and value proposition, realiablity, aestecis and cost. Our clients get a win all the time. Here is a small mock up of the Andalay panel the biggest difference you are going to see between the Andalay panel and any other panel in the past 30 years including everything that is being installed today, a traditional panel has aluminum racking and a non structural panel that sits on top of that, the wires are connected together and there is a perimeter ground system around that has to go around. So what we have done for our