http://www.smallwindenergy.ca/en/Overview/BenefitsIssues/Benefits.html#Cost

Benefits

* Environment. Wind energy is non-polluting, and reduces the demand for higher-impact electricity from thermal stations (e.g. oil, natural gas, coal), hydroelectric dams and nuclear generators.

* Energy Independence. Wind turbine systems can assist you in gaining more independence from your local utility. They can also make you less susceptible to power interruptions from the grid.

* Cost. Wind energy systems are one of the most cost-effective home-based renewable energy systems. Depending on your wind resource, a small wind energy system can lower your electricity bill by up to 100%. They can also help you avoid rising and volatile electricity prices.

* Remote Electricity Generation. If you are at a distance from existing grid lines, generating your own electricity helps you avoid the high costs of having utility power line extensions.

* Complements Solar PV. Solar photovoltaic (PV) systems generate more electricity when there are more hours of sunshine and higher intensity sunshine (i.e. during the summer). Wind turbines generate more electricity when there are more hours of wind per day and higher intensity winds (i.e. during the winter). This makes wind an excellent complement to solar PV in a renewable electricity system.