Well, yes, it is, until you get to complex pages with dynamic content. Think about on-site search results, Flash content, forms, animations and other dynamic resources. There are many reasons why a web crawler would not see your website in the same way that your human visitors do. In fact, many businesses take steps to ensure that web crawlers âseeâ all of the content available.
All estimates for wind power include the cost of purchasing capital and paying for operations and maintenance (O&M) of wind turbines. For the studies we examined, capital costs ranged from $48 to $88 per megawatt-hour, while O&M costs ranged from $9.8 to $21 per megawatt-hour.
An average onshore wind turbine with a capacity of 2.5â3 MW can produce more than 6 million kWh in a year â enough to supply 1,500 average EU households with electricity. An average offshore wind turbine of 3.6 MW can power more than 3,312 average EU households. In 1985, wind turbines were under 1 MW with rotor diameters of around 15 metres. In 2012, the average size is 2.5 MW with rotor diameters of 100 metres. 7.5 MW turbines are the largest today with blades about 60 metres long â over half the length of a rotor diameter of over 120 metres â longer than a football field.