1 Reading 5.2. Reading 5.2 â Population Bottlenecks and Founder Effects. Genetic Drift; When one trait becomes more common in a population due to random. chance (not because it is advantageous or non-advantageous) Population Bottleneck: is event in which a large number of a species is killed causing the. remaining population to reproduce.
Overall, wind farms cost in the area of $1,000 per kW of capacity, so a wind farm consisting of seven 1.8-MW turbines runs about $12.6 million.
Using the new numbers, he finds that solarâs net cost is lower: $158,800 per MW per year, compared with coal. That is an improvement of $30,000 per MW per year, though it is still a net cost. In the original study, wind energy cost $25,300 per MW per year more than coal.With the new figures, the net costs become net benefits: $31,200 per MW per year cheaper than coal.n the capital cost of wind, Dr Lovins again cites the US Department of Energy, in this case its Wind Technologies Market Report, which calculated the weighted average capital cost of 118 wind projects in 2012 to be $1,940/KW. Dr Frankâs again uses the EIA, whose figure is $2,213/KW. That is 14% higher, not 100% higher.