Analysis of Carbon Saving by the Adoption of Electric Vehicles in a Region Where Electricity Generation is Dominated by Thermal Power Plants
One method of reducing atmospheric CO2 emissions in the transportation sector is the replacement of conventional fossil fuel-based vehicles with Electric Vehicles (EVs). However, fossil fuels are still the primary source of electricity production in many regions and the utilization of EVs in such regions increases the electricity demand because of battery charging. This results in increased burning of fossil fuels by thermal power plants and therefore can offset savings in CO2 emissions resulting from the adoption of EVs. In this paper, we consider a scenario where all fossil fuel-based conventional vehicles are replaced by EVs and then estimate the net CO2 emission savings resulting from the adoption of EVs in a region where electricity is primarily supplied by thermal plants. Only emissions generated during the operational phase of vehicle use are considered; emissions during the production phase are not considered. The region under consideration is Madeira, Portugal where thermal plants account for 80% of the total electricity produced. Our findings suggest that although EVs have huge potential to save CO2 emissions, a substantial amount of the savings can be offset due to the increased burning of fossil fuels by thermal plants to meet the electrical demand of charging batteries.
W. J. Smith, “Can EV (electric vehicles) address Ireland’s CO2 emissions from transport?,” Energy, vol. 35, no. 12, pp. 4514–4521, Dec. 2010.
“EERE: Alternative Fuels Data Center Home Page.” [Online]. Available: https://www.afdc.energy.gov/. [Accessed: 02-Mar-2018].
D. Biello and D. Biello, “Electric Cars Are Not Necessarily Clean,” Scientific American. [Online]. Available: https://www.scientificamerican.com/article/electric-cars-are-not-necessarily-clean/. [Accessed: 02-Mar-2018].
World Energy Council, “World Energy Resources 2016,” 2016.
M.-A. M. Tamayao, J. J. Michalek, C. Hendrickson, and I. M. L. Azevedo, “Regional Variability and Uncertainty of Electric Vehicle Life Cycle CO2 Emissions across the United States,” Environ. Sci. Technol., vol. 49, no. 14, pp. 8844–8855, Jul. 2015.
Q. Qiao, F. Zhao, Z. Liu, S. Jiang, and H. Hao, “Comparative Study on Life Cycle CO2 Emissions from the Production of Electric and Conventional Vehicles in China,” Energy Procedia, vol. 105, pp. 3584–3595, May 2017.
N. C. Onat, M. Kucukvar, and O. Tatari, “Conventional, hybrid, plug-in hybrid or electric vehicles? State-based comparative carbon and energy footprint analysis in the United States,” Appl. Energy, vol. 150, pp. 36–49, Jul. 2015.
H. Huo, H. Cai, Q. Zhang, F. Liu, and K. He, “Life-cycle assessment of greenhouse gas and air emissions of electric vehicles: A comparison between China and the U.S.,” Atmos. Environ., vol. 108, pp. 107–116, May 2015.
Empresa da Electricidade da Madeira, “Relatório e Contas 2015.”
Direção Regional de Estatística da Madeira, “Energy Balance of the Autonomous Region of Madeira,” 2018.
“Os 10 carros mais vendidos em Portugal em 2016,” Razão Automóvel, 12-Jan-2017. [Online]. Available: https://www.razaoautomovel.com/2017/01/os-10-carros-vendidos-portugal-2016. [Accessed: 02-Mar-2018].
“Renault Clio TCe 90 Energy Life, Manual, 2016 - 2018, 90 Hp, 5 doors Technical Specifications,” Cars-Data.com. [Online]. Available: http://www.cars-data.com/en/renault-clio-tce-90-energy-life-specs/78448. [Accessed: 24-Jan-2018].
“Renault Clio DCi 90 Energy Zen, Manual, 2016 - 2018, 90 Hp, 5 doors Technical Specifications,” Cars-Data.com. [Online]. Available: http://www.cars-data.com/en/renault-clio-dci-90-energy-zen-specs/78460. [Accessed: 24-Jan-2018].
“Nissan NV200 EVALIA - Carros 7 lugares | Nissan.” [Online]. Available: https://www.nissan.pt/veiculos/novos-veiculos/nv200-evalia.html. [Accessed: 21-Feb-2018].
Horarios Do Funchal, “Horarios Do Funchal - Relatório e Contas.”
“Mind the Gap 2015: Closing the chasm between test and real-world car CO2 emissions | Transport & Environment.” [Online]. Available: https://www.transportenvironment.org/publications/mind-gap-2015-closing-chasm-between-test-and-real-world-car-co2-emissions. [Accessed: 02-Mar-2018].
“2017 Renault ZOE: full prices, specs and battery details | Carbuyer.” [Online]. Available: http://www.carbuyer.co.uk/news/154974/2017-renault-zoe-full-prices-specs-and-battery-details. [Accessed: 02-Mar-2018].
“Nissan e-NV200 VAN - Veículo elétrico - Van,” Nissan. [Online]. Available: https://www.nissan.pt/veiculos/novos-veiculos/e-nv200-van.html. [Accessed: 24-Jan-2018].
“e.City Gold,” Caetanobus, 11-Mar-2016. [Online]. Available: http://caetanobus.pt/en/buses/e-city-gold/. [Accessed: 02-Mar-2018].
“Glossary:Tonnes of oil equivalent (toe) - Statistics Explained.” [Online]. Available: http://ec.europa.eu/eurostat/statistics-explained/index.php/Glossary:Tonnes_of_oil_equivalent_(toe). [Accessed: 02-Mar-2018].
“Gasoline density.” [Online]. Available: https://www.aqua-calc.com/page/density-table/substance/gasoline. [Accessed: 02-Mar-2018].
“Diesel density.” [Online]. Available: https://www.aqua-calc.com/page/density-table/substance/diesel. [Accessed: 02-Mar-2018].
J. Sears, D. Roberts, and K. Glitman, “A comparison of electric vehicle Level 1 and Level 2 charging efficiency,” in 2014 IEEE Conference on Technologies for Sustainability (SusTech), 2014, pp. 255–258.
O. US EPA, “Greenhouse Gases Equivalencies Calculator - Calculations and References,” US EPA, 10-Aug-2015. [Online]. Available: https://www.epa.gov/energy/greenhouse-gases-equivalencies-calculator-calculations-and-references. [Accessed: 02-Mar-2018].
“How much carbon dioxide is produced from burning gasoline and diesel fuel? - FAQ - U.S. Energy Information Administration (EIA).” [Online]. Available: https://www.eia.gov/tools/faqs/faq.php?id=307&t=11. [Accessed: 02-Mar-2018].
D. Al-Baik and V. Khadkikar, “Effect of variable PV power on the grid power factor under different load conditions,” in 2011 2nd International Conference on Electric Power and Energy Conversion Systems (EPECS), 2011, pp. 1–5.