This means that you can work out the total emissions generated from your electricity usage quite easily. sustainable. This means that you can work out the total emissions generated from your electricity usage quite easily. emits 1.0 kg carbon dioxide for generating one kilowatt hour of electricity. How much CO2 is emitted by burning coal to produce 1 kWh of energy. Changing to less carbon dioxide intensive fuels reduces the emissions and contributes to climate protection in the short-term. I'm a little embarrassed to ask this question at this stage of the climate game but, in searching, I seem to get contradictory answers. nearly 100 % more carbon dioxide with respect to the energy content than burning of natural gas. A 39% efficient thermal plant requires 2.564 MJ/sec to drive a 1 MW electrical generator. For example, here: https://www.eia.gov/tools/faqs/faq.php?id=73&t=11 if a power station with an efficiency of 34 % burns coal, it emits 1.0 kg carbon dioxide for generating one kilowatt hour of electricity. Did medieval people wear collars with a castellated hem? Can someone be saved if they willingly live in sin? How or Why does diesel/kerosene have a much higher 'flash point' but lower auto/self-ignition point than gasoline/petrol? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. On the other hand, if we we see 215.4 lbs CO2 giving 1 million btu heat. Of course wood does not have zero moisture content (MC). MathJax reference. Ask Question Asked 6 months ago. 1 MW is 1 MJ/sec. Specific Carbon Dioxide Emissions of Various Fuels, *) not sustainable used without reforestation. E.g. State CO2 emissions per kWh may vary greatly in accordance with the amount of clean energy in the energy supply (Vermont: 0.0045 lbs/kWh; North Dakota: 1.505 lbs/kWh). Changing to less carbon dioxide intensive fuels reduces the emissions and contributes to climate Can anyone point me to a site that I can trust for this number and others like it (related to energy production)? 20.025 million BTUs per ton × 208.364 pounds per million BTUs = 4,172.4891 pounds of CO2 per ton of coal = 1,668.99564 pounds of CO2 per 800 pounds of coal. How to migrate data from MacBook Pro to new iPad Air, How could I align the statements under a same theorem. The factor is based on the carbon emissions generated by the current UK power stations per kWh generated. To analyze emissions across fuels, compare the amount of CO2 emitted per unit of energy output or heat content. Asking for help, clarification, or responding to other answers. Is there (or can there be) a general algorithm to solve Rubik's cubes of any dimension? Step 3: converting energy produced to CO 2 emissions. What to do to speed up the paper publication process? site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. How much carbon dioxide is produced when different fuels are burned? You probably mean electric energy, not thermal energy. For a long-term climate protection the only alternative are Calculate the CO2 emission intensity (kg CO2 emitted/kWh delivered).Assume complete combustion where all the available carbon in the fuel is converted to carbon dioxide gas. Since the thermal efficiency of coal-fired plants is ~37% (~37% of the coal's thermal energy is converted to electrical energy), converting the EIA figure to pounds of $\ce{CO2}$ produced per kWh of electrical energy produced gives us: $$0.735 \frac{\text{lbs }\ce{CO2}}{\text{kWh thermal energy}} x \frac{\text{1 kWh thermal energy}}{\text{0.37 kWh electrical energy }} = 1.99 \frac{\text{lbs }\ce{CO2}}{\text{kWh electrical energy}},$$. To analyze emissions across fuels, compare the amount of CO2 emitted per unit of energy output or heat content. Can you buy a property on your next roll? Different fuels emit different amounts of carbon dioxide (CO2) in relation to the energy they produce when burned. On average, electricity sources emit 0.947 lbs CO2 per kWh. Viewed 40 times 0 $\begingroup$ I'm a little embarrassed to ask this question at this stage of the climate game but, in searching, I seem to get contradictory answers. Energy Information Administration FAQs: "Different fuels emit different amounts of carbon dioxide (CO2) in relation to the energy they produce when burned. 1 kWh of electricity, when produced from a coal burning power plant, will generate 0.94 kg (or 2.07 lbs) of CO2 emissions to the atmosphere according to CNCF.. If fuels are used for electricity generation, carbon dioxide emissions increase with the reciprocal zero-carbon energy resources such as sustainable-used biomass and other renewable types of energy. How much “cleaner” does summer fuel burn? How can I label staffs with the parts' purpose, Example of X and Z are correlated, Y and Z are correlated, but X and Y are independent. Examples of back of envelope calculations leading to good intuition? The Lone Star State has 335 power plants, 81 "red alert" plants, and total CO2 emissions of 290 million tons for this year alone. we see 1 kg/kWh = 2.2 lbs/kWh, New York times https://www.nytimes.com/2007/11/07/business/businessspecial3/07carbon.html How much CO2 is emitted by burning coal to produce 1 kWh of energy, https://www.eia.gov/tools/faqs/faq.php?id=73&t=11, http://shrinkthatfootprint.com/electricity-emissions-around-the-world, https://www.nytimes.com/2007/11/07/business/businessspecial3/07carbon.html, MAINTENANCE WARNING: Possible downtime early morning Dec 2/4/9 UTC (8:30PM…, “Question closed” notifications experiment results and graduation. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. The conversion factor is {{KWHToCO2.CO2_PER_KWH}} kg CO2 saved for each kWh produced from a carbon free source. In other words, if we calculate: Coal extraction − Coal exported + Coal imported − Coal stored as stocks, we can estimate the amount of coal Canada burned in 1900. Active 6 months ago. Since 1 million btu = 293 kWh, we end up with 0.735 lbs/kWh. of the power plant efficiency. per unit of potential energy). The value from EIA is pounds of $\ce{CO2}$ produced per kWh of thermal energy produced, while those from the latter two sources are pounds of $\ce{CO2}$ produced per kWh of electrical energy produced. rev 2020.11.24.38066, The best answers are voted up and rise to the top, Chemistry Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. The value from EIA is pounds of $\ce{CO2}$ produced per kWh of thermal energy produced, while those from the latter two sources are pounds of $\ce{CO2}$ produced per kWh of electrical energy produced. To learn more, see our tips on writing great answers. only use as much wood as can grow again, it is carbon dioxide neutral because it binds as much carbon Carbon dioxide (CO 2) emissions from energy and material production can arise from various sources and fuel type: coal, oil, gas, cement production and gas flaring.. As global and national energy systems have transitioned over centuries and decades, the contribution of different fuel sources to CO 2 emissions has changed both geographically and temporally. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. The specific amount of CO2 released varies with the kind of coal. Thanks for contributing an answer to Chemistry Stack Exchange! These are very different numbers (too different for the problem to be type of coal, at least for eia vs NYT) and I have found other numbers at other sites. Why does burning wood produce methane and other hydrocarbon chains? gives 1.9 lbs/kWh. Grams carbon dioxide per kilowatt-hour by generation method Generation method ADEME Carbon Inventory, low (1) ADEME Carbon Inventory, high PLC, Inc (2) Oak Ridge National Labs (2) Average; Coal: 800: 1,000: 889: 948: 909: Natural gas: 430-517: 449: 465: Oil/Diesel--894: 748: 821: Nuclear: 6---6: Hydro-electric: 4---4: Geo-thermal-----Solar/PV: 60: 150--105: Wind: 3: 22--13: Wood/biomass: 1,500 The conversion factor is 0.23314 kg CO2 saved for each kWh produced from a carbon free source. But as it turns out neither does coal. Or else point out the elementary error I am making? But at this site: http://shrinkthatfootprint.com/electricity-emissions-around-the-world It only takes a minute to sign up. 70 Tons Of Coal Equivalent to Kilowatt-Hours = 569870: 2 Tons Of Coal Equivalent to Kilowatt-Hours = 16282: 80 Tons Of Coal Equivalent to Kilowatt-Hours = 651280: 3 Tons Of Coal Equivalent to Kilowatt-Hours = 24423: 90 Tons Of Coal Equivalent to Kilowatt-Hours = 732690: 4 Tons Of Coal Equivalent to Kilowatt-Hours = 32564 The results of our analysis shows that wood is generally about the same or perhaps a bit lower in CO. 2. emissions on a dry basis (zero moisture content). Use MathJax to format equations. Burning of lignite emits Brown coal has an energy content of 15MJ/kg, carbon content 65% by weight, burning in a 30% efficient steam power plant. Of the 13 Southern states, the leader by far in the total number of power plants, "red alert" plants producing more than 1,750 pounds of carbon dioxide per megawatt hour, and total CO2 tonnage is Texas. 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