Power in Wind

Wind Power = ½ x Swept Area x Air Density x Velocity³

Wind Energy can be calculated. The most interesting part of the calculation is when you double the wind you get 8x the amount of energy or velocity cubed.

Wind is made up of moving air which has mass. Any moving object with mass carries kinetic energy in an amount which is given by the equation: Kinetic Energy = ½ x Mass x Velocity²

Knowing air has a known density (around 1.23 kg/m³ at sea level), so the mass of air hitting a wind turbine is given by the following equation: Mass/sec (kg/s) = Velocity (m/s) x Area (m²) x Density (kg/m³)

Therefore, the power in the wind hitting a wind turbine with a certain swept area is given by taking the mass per second calculation and the standard kinetic energy equation and using them to equate the power in wind = ½ x Swept Area x Air Density x Velocity³


Our customers view the internal rate of return (IRR) of their wind energy investment to be a superior method of assessing its value to its payback period. IRR, not payback period, is the best way to assess the profitability of all types of financial investments (IRAs, stocks, etc.), including wind turbine systems as investments. Though, unlike mutual funds and stocks, renewable energy systems are generally far less susceptible to external risk.

XZERES wind energy systems lock in cost of energy for over the 20 year life of the turbine which can reduce cost/kWh to just pennies. Contact us today for a full report on the IRR and NPV of our wind turbine systems based on your site location.

Diverse Applications

Our systems are performance based, designed to produce energy consistently and quietly, even in the most demanding locations serving a broad range of applications for both on and off-grid requirements. These include, but are not limited to, telecommunication tower applications in remote areas, residential, commercial, community power, island electrification, hybrid and specialty applications. XZERES Wind provides wind energy solutions to meet the needs of homeowners, businesses, public facilities, and institutions worldwide.


Wind Energy Reduces Greenhouse Gas Emissions. According to the American Wind Energy Association, on average, each MWh of electricity generated in the U.S. results in the emission of 1,341 pounds of carbon dioxide (CO2), 7.5 pounds of sulfur dioxide (SO2) and 3.55 pounds of nitrogen oxides (NOx). Thus the 10 million MWh of electricity generated annually by U.S. wind farms represents about 6.7 million tons in avoided CO2 emissions, 37,500 tons of SO2 and 17,750 tons of NOx.

Technology Today

Our modern technology allows for effective wind energy production today. XZERES leads the industry in cut speeds for our turbines. Advances in production of energy with low wind speeds opens the door for more site locations to take advantage of wind as a sustainable resource.

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