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.
Wind and solar costs falling. The levelized cost of some wind and solar technologies has plummeted in recent years. The graphic below shows that the average cost of onshore wind has fallen from $135 per megawatt-hour in 2009 to $59 in 2014.Thatâs a 56 percent drop in five years.nshore wind has the lowest average levelized cost in this analysis at $59 per megawatt-hour, and utility-scale photovoltaic plants werenât far behind at $79.