0 10 20 30 40 50 60 Percent Increase

(over baseline of 30 feet)

Chart 1

considerably greater over hilly terrain with many buildings and trees. Wind shear can be represented as a percentage of increased wind speed as height increases over the ground or over vegetation and buildings. The above chart depicts wind shear for us.

Thirty feet is the baseline used to determine wind shear at higher levels. It is a typical adjusted height for measuring wind speed at weather bureaus and airports.

Percent Increase of Wind Power with Height

Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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