CO 2 Emissions The production of one kWh electricity can be made using different energy sources, each source can be characterized by a factor that indicates how many kilograms of CO 2 are released into the atmosphere to produce 1 kWh electricity (these factors are changes that depend efficiency of the single station and the distribution network). On average, one kilowatt-hour of produces a little over one pound of carbon dioxide (CO2). To the best of our ability, on average, one kilowatt-hour creates 1.13 pounds of carbon dioxide. That is, 1.000 kilowatt-hour delivered is actually 1.075 kilowatt-hours produced: As a result of the line loss, the carbon dioxide of a delivered kilowatt-hour is slightly higher than a produced kilowatt-hour: There you have it! This equaled about 0.99 pounds of CO2 emissions per kWh. We've got a pretty good estimate of how much carbon dioxide is produced by an average kilowatt-hour at an average power plant. Note that rounding errors may occur, so always check the results. Most everyone understands that the methods which rely on fossil fuels are bigger polluters than those that use renewable energy sources. The estimate is based on a live feed from the National Grid breakdown of current generation sources. Fuel is not equal to fuel - at least if we consider carbon dioxide emissions. Re: KWh into CO2 emission equivalents A summary of useful factors can be found below: Conversion to CO2 (gross CV basis) Energy source Units Kg CO2/unit Grid electricity kWh 0.537 Natural gas kWh 0.185 LPG kWh 0.214 litres 1.495 Gas oil kWh 0.252 litres 2.674 Fuel oil The CO2 emission intensity (kg CO2/kWh) is calculated as the ratio of CO2 emissions from public electricity production (as a share of CO2 emissions from public electricity and heat production related to electricity production), and gross electricity production. per kWh. Now we know on average how much CO2 is created by one kilowatt-hour from each major utility company. so the value is really kg CO2 eq. This factor includes other green house gasses such as methane and nitrous oxide which are converted to their carbon dioxide equivalents Live UK Generarion Now let's see which generation methods they use to create their electricity. The conversion factor is {{KWHToCO2.CO2_PER_KWH}} kg CO2 saved for each kWh produced from a carbon free source. If it was a coal fired plant it would produce more CO2 than if it was a gas fired plant. In that case, we evenly divided the capacity between fuels. According to the Energy Information Administration (EIA)1, transmission and distribution losses (aka, "line losses") accounted for 7.5% of electricity generated in 2012. For further information, feel free to email us at, We now are able to give a live estimate of CO2 emissions due to electricity According to S&P's 2007 Electric Utilities Industry Survey (S&P Industry Survey, Electric Utilities, Justin McCann, August 9, 2007), here are the top 10 electric utility companies in the US by 2006 operating revenue. However, it's as close as we can get, and if we assume energy companies are operating fairly close to capacity in the United States, our numbers are fairly accurate. Source: Australian Government - Department of the Environment and Energy. With that in mind, we figured it made the most sense to collect as many life-cycle analyses as we could find and average the numbers. One gallon of heating oil contains 138,000 BTU. We use cookies to ensure that we give you the best experience on our website. As you can see, it isn't an exact science. Greenhouse gas reporting: conversion factors, Carbon Footprint OF Electricity Generation. In some instances, a single plant could use multiple types of fuel depending on fuel price and availability. For instance, if you're trying to estimate how much CO2 is generated by one kilowatt-hour from a nuclear reactor, do you include the CO2 released when the reactor dome's concrete was produced and the emissions of the trucks transporting the concrete as well as the nuclear fuel and waste? 1 joule is equal to 2.7777777777778E-7 kWh, or 3.4120842375357E-11 tonne of coal equivalent. On average, electricity sources emit 0.947 lbs CO2 per kWh. They need very few nutrients relative to their size so they don’t deplete the topsoil, get most of their water from deep underground, and their mass from the air they breathe. The factor is based on the carbon emissions generated by the current UK power stations per kWh generated. "A tool for companies and office activities: the 'Carbon Inventory' of ADEME", May 2004, Table 3, Market-leader generation methods, Table 1, Grams carbon dioxide per kilowatt-hour by generation method, Table 4. There are several ways to generate electricity, but not all generation methods are created equal. However, if, like most people, you don't live next to a power station, the electricity has to be transmitted to you, and the power grid is not 100% efficient. (Source: (Source: EPA eGRID Summary Tables and Data Files) In 2018, total U.S. electricity generation by the electric power industry of 4.17 trillion kilowatthours (kWh) from all energy sources resulted in the emission of 1.87 billion metric tons—2.06 billion short tons —of carbon dioxide (CO2). Do you include the petroleum products used inside the reactor? So now we know the power generation mix for each of the top 10 utility companies. Now that we have an idea how much CO2 is released when you produce one kilowatt-hour using different generation methods, let's see if we can't figure out what generation methods are used to produce electricity in the United States. In 1998, it was 290 g. Our country has reduced its carbon footprint by developing renewable energy sources and improving the efficiency of gas-fired power plants (gas-steam turbines). This data is from The Parlimentary Office of Technology document Carbon Footprint OF Electricity Generation.

1 kwh is equal to how much co2

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