How does wind electricity generation work?
Wind turbines are mounted on a tall tower– winds at higher altitudes are generally stronger than winds at the earth’s surface –blades catch the wind and as they turn around spin and spin a turbine which generates electricity.
The longer the wind blows, the more electricity is generated.
So why isn’t Tacoma Power using more wind power?
While wind is a renewable resource, Tacoma Power already has hydroelectric resources which do not emit carbon dioxide and provide reliable, low cost electricity. About 90% of our resource portfolio is hydro, 40% of which we own and operate. We currently have more electricity than we need. Excess electricity is sold on the open power market which keeps our customer’s rates low. At this time the installed cost of electricity generated at a new wind farm exceeds the cost of our own hydro generated electricity as well as the current and forecast price of electricity on the open market. Currently, investment in a wind farm isn’t necessary and would increase the cost of the already carbon free electricity for our customers.