The transportation sector accounts for nearly 23% of global emissions [1]. Given this, a significant step towards effective decarbonization of the economy involves transforming the way we move. Among the various solutions available in the market, the electrification of private vehicles and public city buses stands out as one of the most impactful strategies. The progress is undeniable, more than 10 million Electric Vehicles (EVs) representing 14% of global private vehicles, were sold globally in 2022 [2]. EV’s continued success, however, relies heavily on further infrastructure development, cost reductions in battery technology, and, most importantly, the role of sustainable finance in enabling broader EV adoption. This article explores the latest progress in EV adoption, key drivers of growth, environmental impact, challenges encountered, and the role of financial institutions in scaling the technology.
Accelerating the Shift: How EVs are Evolving
Electric cars are no longer an emerging or experimental technology. They are a proven, reliable solution to cutting transportation emissions and a cornerstone in achieving global climate targets. Deloitte estimates a total of 116 million electric cars by 2030 [3], and the European Parliament has decided to ban the sale of new fossil-fuel based cars [4]. The momentum of electromobility is mainly due to the competitiveness of the EV costs.
One of the most critical aspects of EV adoption is battery advancements. The cost of lithium-ion batteries, which represents between 20%-40% of the total cost of EVs, has plummeted by 89% since 2010 [5] [6]. Forecasts show an even bigger reduction in cost of the technology. This trajectory will lead to cost convergence with traditional combustion engine vehicles, even without subsidies. While EVs in China have already achieved price parity, the rest of the world is expected to reach it by 2030 [7].
EVs do not just contribute to decarbonizing the transportation sector, they also play a crucial role in energy management through a process known as peak shaving. EVs can be integrated into the energy grid as mobile batteries, storing energy during periods of low demand when electricity prices are lower, and injecting it back into the grid when demand peaks, which typically coincides with higher electricity prices. This dynamic energy exchange helps stabilize the grid, reducing reliance on more expensive and carbon-intensive energy sources, such as thermal generation during peak periods, and supports the transition to renewable energy [8]. Using smart grids, artificial intelligence (AI) can manage the timing and quantity of energy EVs store and release, optimizing this process for maximum efficiency. AI algorithms can learn patterns in energy use, determining the most cost-effective times to charge the vehicle, reducing overall energy costs for both consumers and grid operators. This can also lead to significant savings on electricity bills for EV owners who participate in Vehicle-to-Grid (V2G) programs. Elia, a service company from Belgium, estimated that EV owners could reduce their energy costs by 25% if they used V2G technologies [9].
Overcoming Barriers to Electrification
While EVs are a powerful technology, electrification is not a one-size-fits-all solution for every sector of transportation nor every country. One of the major challenges EVs face is the carbon intensity of electricity grids. In regions where electricity generation is still heavily dependent on coal or other fossil fuels, the environmental benefits of EVs are diminished, as we can see in Figure 1.
Figure 1. Range of Life-Cycle CO2 emissions for different vehicles and fuel type
Figure 1 shows how emissions of cars with combustion engines compare with EV’s. To analyze the emissions of electric vehicles we must focus on the carbon footprint of the electricity source . EVs will not reduce emissions if the electricity source is more dependent on high emissions fossil fuels and will have a decarbonization effect when charged with renewable energy sources. This is consistent with the European Environment Agency argument that when analyzing end of life vehicle emissions, electrification in countries like China, Poland or Australia, where electricity generation is predominantly based on coal, even conventional cars can be less polluting. In light of this, EVs must be accompanied by the deployment of more renewable energy or natural gas as a transition fuel. [10]
Another emerging issue that could hinder further development is increasing threats to free trade. The global reliance on a few key materials like lithium, cobalt, and nickel, which are concentrated in politically unstable or economically restrictive regions, mainly China, poses risks to the scalability of EV production [11]. In response, countries like the U.S. and members of the European Union have started implementing trade restrictions to stop Chinese EVs factory growth and reduce reliance on specific markets. Even though this is an attempt to diversify the supply chain, this could drive up costs for EV manufacturers and slow adoption [12].
Finally, batteries may not be the best solution for certain modes of transport. The aviation and maritime sectors, along with long-haul freight transportation, require higher energy densities than what current battery technology can offer. Instead, these sectors are looking into alternatives like hydrogen, synthetic fuels and biofuels as more viable pathways toward decarbonization [13].
The Role of Sustainable Finance in Scaling EVs
Despite rapid advances in EV technology, significant challenges remain. The IEA estimates that we will need to invest $900 billion annually in clean transportation around the world through 2030 to achieve net-zero emissions by 2050 [14]. Of this, $417 billion will be required for clean transportation infrastructure alone [15].
To address these gaps, sustainable finance is vital, not only to fund the vehicles but also the necessary infrastructure. Tax credits and subsidies have been effective in promoting initial EV adoption and reaching price parity with regular cars. But moving forward, innovative climate instruments, such as green bonds and loans can incentivize investment in charging infrastructure and EV production. At car-makers level, brands like Nissan launched their Sustainable Finance Framework which aimed to finance next-generation electrified vehicles, batteries, and environmental technologies [16]. Additionally, instruments at a retail level can be explored. Green leases are becoming more and more popular, especially in the luxury vehicles sector, as 25% percent of the electric cars sold in the US are financed by this instrument, driven by tax credit exemptions and lower rates [17].
As we consider the journey ahead, it is essential to explore how sustainable finance can further accelerate the adoption of EVs. Opportunities abound to innovate financial mechanisms supporting this transition. Collaboration among policymakers, financial institutions, and consumers will be crucial in building a robust and sustainable EV ecosystem. By fostering partnerships and leveraging sustainable finance, we can pave the way for a cleaner, more efficient transportation future.
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Luis Wagner is an Analyst at HPL and an international relations professional specializing in clean energies, and sustainable finance. He graduated Cum Laude with a Bachelor’s degree in International Relations from the University of San Andrés (UdeSA), where he has been a fellow professor of Comparative Politics since 2022. Additionally, he is currently pursuing a Master’s degree in Sustainable Energy Development at the Buenos Aires Institute of Technology (ITBA). Before joining HPL, Luis worked for over a year at the Undersecretariat of Energy Planning of the Argentine Republic, where he gained experience in energy transition, public policies, and international cooperation. He also worked at Tonal Media, a political communication consultancy and media agency, where he gained knowledge about communication strategies.
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References
[1] IEA (2023). Global CO2 emissions by sector, 2019-2022. Available here.
[2] IEA (2023). Global EV Outlook 2023. Available here.
[3] Deloitte (2020). Electric vehicles: Setting a course for 2030, Deloitte Insights. Available here.
[4] European Parliament (2022). EU ban on the sale of new petrol and diesel cars from 2035 explained. Available here.
[5] IEA (2023). Global EV Outlook 2023. Available here.
[6] Ecoinventos (2024). Según Goldman Sachs, se espera que los precios de las baterías de vehículos eléctricos caigan casi un 50% para 2026. Available here.
[7] Energy & Capital (2024). Why Electric Cars Are Already Cheaper Than Internal Combustion Vehicles. Available here.
[8] IRENA (2023). From Polluter to Grid Service Provider: How Your Car Can Help Power the Energy Transition. Available here.
[9] IRENA (2023). From Polluter to Grid Service Provider: How Your Car Can Help Power the Energy Transition. Available here.
[10] European Environment Agency (2016). Electric vehicles in Europe. Available here.
[11] IEA (2024). World Energy Outlook 2024. Available here.
[12] The Economist (2024). The EU hits China’s carmakers with hefty new tariffs. Available here.
[13] Business Europe (2021). Decarbonization in aviation and maritime sectors. Available here.
[14] IEA (2022). Investments in end-use sectors in the Net Zero Emissions by 2050 Scenario, historical versus 2030, IEA, Paris. Available here.
[15] BCG (2024). Accelerating the Shift to Sustainable Transport. Available here.
[16] Nissan Motor Corporation (2022). Nissan and Nissan Sales Finance affiliates Sustainable Finance Framework. Available here.
[17] S&P Global (2024). The Growing Popularity of EV Leasing. Available here.