CITY OF TALLAHASSEE
The electricity distributed by the City of Tallahassee Utilities emits, on average, 0.98 lbs of CO2 per kWh. This is a result of the mix of power plants that generate the electricity, which rely on a variety of energy sources, such as natural gas, hydro, and on rare occasions oil. The city also purchases some power. In comparison, Florida's average emission rate is 1.340 lbs per kWh, and the national average is 1.329 lbs per kWh.
The CO2 emission factor (carbon intensity) of the City of Tallahassee Utilities electricity is 0.98 lbs of CO2 per kWh.
The electricity distributed by Talquin Electric Cooperative emits, on average, 1.295 lbs of CO2 per kWh. This is a result of the mix of power plants that generate the electricity, which rely on a variety of energy sources, such as coal, natural gas, and hydro. In comparison, Florida's average emission rate is 1.340 lbs per kWh, and the national average is 1.329 lbs per kWh.
The CO2 emission factor of Talquin Electric Cooperative electricity is 1.295 lbs of CO2 per kWh.
Natural gas is relatively clean burning fuel, composed mostly of methane, and is usually a byproduct of producing oil. One of the advantage of using gas over electricity in a household are that the carbon savings are substantial. Whereas electricity is generated far away, and losses are incurred through distribution over power lines, gas comes straight to the home or business, and can deliver the same amount of energy as electricity with 40% to 60% less greenhouse gas emissions. Natural gas in the Tallahassee area is delivered in units of 100 cubic feet, or ccf.
The CO2 emission factor of natural gas is 12 lbs per ccf, or 53.06 kgCO2 per mmbtu.
Propane is produced as a byproduct of natural gas processing and petroleum refining. Common throughout the world, it can be used in households for cooking and heating as well as in vehicles for transportation. Through not as clean a fuel as natural gas, it is much cleaner than gasoline, and its ease of compression makes it convenient for handling, even in small quantities. Propane is heavier than natural gas, has more carbon per molecule than natural gas, and therefore slightly higher CO2 emissions.
The CO2 emission factor for propane is 12.67 lbs per gallon or 63.10 kgCO2 per MMBtu.
Wood is a natural, high carbon source of energy, used throughout the world for heating and cooking. For the purpose of this calculator, a cord, or 128 cubic feet of seasoned Live Oak was used to estimate CO2 emissions. A cord of dried Live Oak weighs approximately 4,200 lbs, and has ~ 2,000 lbs of carbon in it. At combustion, the carbon combines with oxygen to create Carbon Dioxide (CO2), a heavier molecule, resulting in around 7,392 lbs of CO2.
Because wood regenerates quickly, relative to coal, natural gas and other fossil fuels, it is treated as carbon neutral and will not add to the Total Carbon Footprint.
The CO2 emission factor for seasoned Live Oak is around 7,392 lbs per cord, or 115 kgCO2 per MMBtu.
Note: A size of a bundle of wood varies, and can range from 0.75 to 1.5 cubic feet. A supermarket bundle at 0.75 cubic feet would be 1/170 or .006 of a cord, and produces around 45 lbs of CO2.