Clean energy from wind power
Most electricity comes from fossil fuels such as coal and natural gas. These conventional sources produce carbon dioxide emissions. Wind energy, on the other hand, is virtually carbon-free. Funding wind energy helps to lower the proportion of electricity we derive from dirty power sources. Building and operating a wind farm takes a lot more than a strong breeze. Wind power is more expensive to produce than power from coal and natural gas. This is because electricity is only produced when the wind is blowing, and because the number of kilowatts produced varies depending on wind speed and direction. When TerraPass supports a wind farm, we calculate how much carbon dioxide we’re reducing by examining the “carbon profile” of the electricity grid where the energy is produced. This carbon profile is calculated periodically by the US Environmental Protection Agency by examining the carbon dioxide emissions of all commercial energy sources within each regional grid. So, if generating a megawatt-hour of electricity results in emissions of 1,000 pounds of carbon dioxide within a particular grid, then 100 MWh of clean energy generated within that grid saves 100,000 pounds of carbon dioxide.