Hybrid cars8/31/2023 ![]() ![]() Lifetime net operational savings are US$4.49 trillion with a net implementation savings of US$3.40 billion. Scenario 2 saw 4.71 gigatons of emissions avoided. Lifetime net operational savings are US$1.55 trillion with a net implementation savings of US$4.55 billion. ![]() Scenario 1 resulted in the reduction of 1.61 gigatons of carbon dioxide equivalent emissions (2020–2050). ResultsĪll monetary values are presented in 2014 US$. This changed the fuel consumption variables. Additionally, because we integrated the Hybrid Cars solution with the Carpooling solution, we assumed increased occupancy of hybrids as Carpooling solution adoption increased. Scenario 2, therefore, resulted in lower hybrid use in urban environments than the other scenarios. Total adoption is limited by the market, since the Hybrid Cars solution was lowest in integration priority of all the urban solution modes. We maintained consistency with other solutions (such as Electric Cars) by using harmonized inputs for ICE car price, fuel economy, etc. The Hybrid Cars solution wound up last in integration priority due to the high energy, emissions, and space requirements and the fact that hybrid cars are the least efficient of all considered options under typical usage assumptions. Project Drawdown prioritizes its urban solutions by energy efficiency and space efficiency, so solutions that support nonmotorized modes, such as Bicycle Infrastructure, were the highest priority. We based fuel costs on an average global fuel economy using 23 data points, and on the average fuel price for 2007–2018. Operating costs included fixed costs, such as insurance, as well as variable maintenance and fuel costs. We assumed no learning rate for ICE or hybrid vehicles. We estimated purchase costs for hybrids and ICE cars using price data available in the US, EU, and Japan, as well as global weighted averages. ![]() We based fuel emissions on the global average fuel economy and included indirect emissions from manufacturing of the vehicles were included (hybrids were found to yield slightly more indirect emissions per vehicle than ICE vehicles). Hybrids provide 7.61 trillion passenger-kilometers, 30 percent of the total addressable market. Scenario 2: 631 million hybrids on the road in 2050, based on a transition to electric vehicles in which hybrid adoption grows according to the IEA 2DS scenario until the late 2040s, when adoption declines 50 percent of hybrid passenger-kilometers are urban until 2030, when adoption declines.Hybrids provide 3.03 trillion passenger-kilometers, 8 percent of the total addressable market. Scenario 1: 369 million hybrids are on the road, based on the average of collected conservative projections from several sources 50 percent of hybrid passenger-kilometers are urban.We calculated impacts of increased adoption of cars from 2020 to 2050 by comparing two growth scenarios with a reference scenario in which the market share was fixed at current levels. We based global adoption in 2018 on estimates of the historical and projected fractions of light-duty vehicles that are hybrid and on average estimates of total light-duty vehicle passenger-kilometers (Institute for Transportation & Development Policy & UC Davis, 2014). We used data from the International Energy Agency (IEA) and International Council on Clean Transportation (ICCT) to determine the urban segment common to all urban transportation solutions. The total addressable market for this technology is total urban and nonurban global passenger-kilometers, projected to 2050. This solution replaces the use of ICE cars. Project Drawdown defines the Hybrid Cars solution as the increased use of non-plugin ICE cars that run on or are moved by electric motors for at least part of the journey. Hybridization paves the way for full-electric vehicles-only motors and no engines at all-which can run solely on clean energy. boost the engine’s performance, allowing it to be smaller and more efficient.capture the kinetic energy typically released as heat during braking and convert it back into electricity.keep a car’s air-conditioning and accessories running while idling at a traffic light.Electric motors are uniquely efficient at low speeds and going from stop to start. Gasoline- or diesel-powered engines excel at sustaining high speeds but have a harder time overcoming inertia to get moving. Hybrid electric vehicles are more fuel efficient than internal-combustion engine (ICE) cars because they use stop-start technology, which reduces idle time, and regenerative braking, which recovers the energy that would otherwise be dissipated when brakes are applied. They are distinct from electric vehicles, which are powered, in part or in whole, by grid electricity. Hybrid electric vehicles supplement an internal combustion engine with at least one electric motor and a battery large enough to power the vehicle by generated electricity.
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