In other words, a neutron star with a rotation of 1 second will be slowed to 2 seconds in about 30 million years. Thus, the age of a pulsar is determined by its current rotation speed.he idea of a neutron star was developed in 1939 when calculations were made of a star that was composed solely of degenerate neutrons.
The costs for a utility scale wind turbine range from about $1.3 million to $2.2 million per MW of nameplate capacity installed. Most of the commercial-scale turbines installed today are 2 MW in size and cost roughly $3-$4 million installed.ind turbines have significant economies of scale. Smaller farm or residential scale turbines cost less overall, but are more expensive per kilowatt of energy producing capacity. Oftentimes there are tax and other incentives that can dramatically reduce the cost of a wind project.
us installed wind turbine capacity was 11575 mw at end 2006 and 16907 mw at end 2007 for an increase of 5332 mw at a capital cost of about $ 9598 million i e the transmission cost adder is about 1902 9598 19 8 %arious big wind promoters maintain the cost of wind energy is competitive with other sources of energy as shown below this is hardly the case they often point to power purchase agreements ppas between wind turbine owners and utilities to sell at 5 to 6 c kwh as proof of market price parity