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.
Small and intermediate turbines make up the bulk of the older installed turbine base, but new turbines installed in the late 1990s are generally 600 kW and larger. Utility-scale wind farms are generally located in areas with average annual wind speeds of at least 13 miles per hour.