solar powered crane?

hot_rod

seem to be the weakest link. Some fairly robust gears are required to handle those loads. A German company has developed a system to monitor oil conditions online to catch problems before they turn into 5 figure rebuild jobs.

The current issue of www.sunwindenergy.com has some good article on wind equipment.

13 companies set up in the US in 2007 to build wind components including towers, blades, and turbines.

The US leads the world in wind power installations with 5,244MW installed . Wind accounted for close to 30% of all new electricity generating capacity, according to the Market Watch section of this magazine.

hr

nicholas bonham-carter

solar powered crane?

how many wind turbines would it take to supply enough energy to manufacture this crane from dans latest newsletter ?

http://www.roadtransport.com/blogs/big-lorry-blog/2008/06/wind-turbineshave-you-ever-won.html

i still think we should solve the power transmission loss problems on these things.and put the guts at the base,ore this system below:

http://www.wipo.int/pctdb/en/wo.jsp?wo=2003029650

Valmont Brings Lower Cost Energy to Market

The Valmont (www.valmont.com) tower, designed for assembly one piece at a time, supports wind power generation. It is considered self-erecting because it does not require large cranes for its installation, overcoming one of the most common construction difficulties. Valmont can significantly lower construction costs, resulting in a lower overall cost of energy to its customers for several reasons. First, smaller tower sections greatly reduce freight and shipping costs. In addition, they require smaller, less expensive, and more readily available cranes for installation, which in turn reduces infrastructure costs such as road size and crane pad requirements. The prototype wind structure supports a wind turbine generator with a nameplate capacity of 660kwh -- enough electricity to power an average of 150-200 Nebraska homes.--nbc

Maine Doug_74

Although wind is growing

it is about 1% of the US use. Here is the distribution of power production. One can see why coal plants need to refit to use current technology to clean their stacks and deal with fly ash. Wind is at least clean by comparison to what generates half of the electric power.

The wind generator at the blueberry processor near my place in ME had to have the transmission replaced. Early failure unfortunately.