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.
Larger wind turbines are put on taller pillars, and the wind speed up there is usually somewhat higher. Nevertheless, the power production per unit area of land is not particularly impressive. Wind farms in the US produce power at the average rate of about 1.2 watts per square meter (about 5000 watts per acre).