Introduction

Hanoi, a rapidly growing metropolis in Vietnam, is grappling with significant challenges related to air pollution, traffic congestion, and climate change. With over 5 million vehicles operating within its city limits, Hanoi’s air quality frequently exceeds World Health Organization (WHO) standards. To address these issues and improve the overall quality of life for its residents, the city has embarked on a transformative journey to electrify its public transport system.

The city aims to transition its entire fleet of public buses to electric and green energy vehicles by 2035. This ambitious goal is part of a broader strategy to reduce greenhouse gas emissions, improve air quality, and enhance the overall efficiency and sustainability of the city’s transportation system. By 2035, Hanoi aims to increase the share of public transport usage to 50-55%, significantly reducing reliance on private vehicles. This bold initiative has an estimated budget of around USD1.9 million, primarily funded by both the municipal government and the private sector.

Currently, 1,725 buses across 117 routes are operational in the city. As of September 2024, there are 10 CNG bus routes, all operated by Bao Yen Construction Service Tourism Company Limited. The CNG bus fleet comprises both medium and small capacity vehicles. Bao Yen Construction Service Tourism Company Limited has invested in a dedicated CNG fueling station at its headquarters in Dong Anh district to support the operation of these buses.

To achieve its ambitious target, the city plans to significantly expand its electric bus fleet, invest in charging infrastructure, and optimize bus routes. This transition is expected to  reduce emissions and improve the overall passenger experience, making public transport a more attractive and convenient option. 

Objectives of the Development Plan

The primary objectives of Hanoi’s public transport development plan are:

  1. Reduction of CO2 Emissions: One of the most significant environmental benefits of switching to electric and green energy buses is the reduction of CO2 emissions. The city’s current fleet of diesel-powered buses emits approximately 170,480 tons of CO2 annually. The transition to electric buses will significantly reduce this amount, contributing to the country’s climate change commitments.
  2. Improvement of Air Quality: Air pollution in Hanoi has been a growing concern for both public health and the environment. The conversion of buses to electric energy is expected to improve the city’s air quality by reducing pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter.
  3. Reduction of Traffic Congestion: With an increasing number of vehicles on the road, traffic congestion in Hanoi has become a major issue. A modern, efficient public transport system will encourage more people to use buses, thereby reducing private car use and alleviating congestion.
  4. Enhancement of Public Transport Services: The project aims to improve the quality of public transport services by providing a modern, efficient, and environmentally friendly bus fleet. This will encourage more people to use public transport, thus improving accessibility and mobility within the city.
  5. Sustainable Urban Development: The transition to electric and green energy buses supports the Government of Hanoi’s broader goals for of creating a sustainable urban environment. The city will be able to reduce its carbon footprint, improve its resilience to climate change, and promote green technologies.

The Phased Implementation Plan

To ensure a smooth and effective transition to electric and green energy buses, Hanoi has outlined a phased implementation plan:

Phase 1: 2025

  • Pilot Projects: Four transport units will initiate pilot projects on five routes, deploying a total of 76 electric buses (11 small and 65 medium-sized).
  • Large Bus Conversions: Diesel buses on route 34, nearing the end of their lifecycle, will be replaced with electric buses.
  • Target: 5% of the total bus fleet will be converted to electric or green energy vehicles.

Phase 2: 2026-2030

  • Scaling Up: The city will establish technical and economic norms for electric buses, enabling a larger-scale transition.
  • Phased Replacement: Diesel buses reaching the end of their 10-year lifecycle will be replaced with electric or green energy buses, taking into account route-specific operational requirements.
  • Target: 93.4% of the total number of converted vehicles will be electric or green energy buses.

Phase 3: 2031-2035

Full Electrification: The remaining diesel buses will be replaced with electric or green energy buses, ensuring a fully electrified public transport system.

Target: 100% of the total number of converted vehicles will be electric or green energy buses.

Yearly Bus Replacement Plan

Key Insights:

Small Buses: The replacement of small buses begins modestly between 2024 and 2025. A noticeable increase is observed in 2026 and 2027, aligning with the city’s strategy to introduce smaller buses for better accessibility in narrower or less densely populated routes. By focusing on later years, the plan accommodates infrastructure upgrades or operational evaluations.

Medium Buses: Medium buses experience the highest replacement rate, particularly in 2025 and 2026. This reflects their pivotal role in handling the majority of passenger loads on medium-capacity routes. Their prominence signifies an emphasis on bridging demand gaps without overwhelming road capacities.

Big Buses: The minimal replacements for big buses—completely absent in 2024, 2027, and 2028—highlight their lower priority. This aligns with a likely shift towards medium buses and smaller vehicles, possibly to enhance flexibility and efficiency.

Total Bus Additions: The cumulative additions peak in 2025 (158 buses) and 2026 (324 buses), reflecting a focus on rapid fleet scaling during these years. The strategy underscores a clear aim to diversify the fleet, enhance operational efficiency, and meet growing demand. The graph visually demonstrates this strategic focus, making it evident how resources are allocated to prioritize medium and small buses, addressing urban transportation needs effectively.

Key Strategies for Implementation

The successful implementation of Hanoi’s plan for electric and green energy buses will require a multifaceted approach that includes policy support, infrastructure development, investment mobilization, and public engagement.

  1. Policy and Financial Support

One of the most significant barriers to the adoption of electric buses is the high initial investment required for the purchase of new vehicles and the establishment of charging infrastructure. To address this challenge, Hanoi will implement several policy measures designed to reduce financial burdens on public transport operators and private investors.

  • Subsidies and Incentives: The city will offer subsidies for the purchase of electric buses and charging stations. Additionally, policies will include tax incentives, such as reduced import duties on electric vehicles (EVs) and components, as well as preferential rates on corporate income tax for companies investing in green transport solutions.
  • Low-interest Loans and Financing: The city will work with financial institutions to provide low-interest loans and grants for electric vehicle investments, thereby reducing the financial risk for bus operators. This will encourage public-private partnerships and increase investments in the transition to electric buses.
  • Preferential Tax Policies: The Ministry of Finance will review and amend existing tax laws, such as the Law on Export and Import Tax, to provide incentives for the import of electric buses and related components. Additionally, tax exemptions and reductions on registration fees for electric buses will be introduced.
  1. Infrastructure Development

The success of the electric bus transition will depend on the availability and reliability of charging infrastructure. Without a robust network of charging stations, the electric bus fleet cannot operate efficiently.

  • Charging Stations: The city will invest in building a comprehensive network of charging stations located at strategic points such as bus depots, transportation hubs, and key routes. Fast-charging stations will be installed at bus terminals to minimize downtime for buses. Furthermore, the city will also explore the possibility of integrating renewable energy sources, such as solar power, into the charging infrastructure.
  • Power Supply Networks: In addition to charging stations, Hanoi will need to upgrade its electricity supply networks to accommodate the increased demand from electric buses. This includes expanding and modernizing transformer stations, power supply systems, and grid infrastructure to ensure reliable service.
  • Bus Terminals and Parking Facilities: Dedicated areas for electric buses will be established at bus terminals and parking facilities, equipped with charging infrastructure. These areas will serve as the base for bus operations, ensuring that buses are charged and ready for service.
  1. Public Transport Operator Involvement

Public transport operators will play a central role in the conversion process. Hanoi’s city government will work closely with bus operators to ensure that they are adequately supported during the transition.

  • Capacity Building and Training: Bus operators will receive training in the management and operation of electric buses. This will include training on maintenance procedures, troubleshooting, and ensuring the operational efficiency of electric buses.
  • Investment in New Technology: Bus operators will be encouraged to invest in electric buses and associated technologies. The government will facilitate access to financing options that make the transition affordable and sustainable.
  1. Human Resource Development

To support the transition, Hanoi will invest in human resource development to ensure that workers are equipped with the skills needed to manage, operate, and maintain the new fleet of electric buses.

  • Training Programs: The Department of Transport will work with educational institutions and specialized training centers to develop programs that train individuals in the operation, maintenance, and repair of electric buses. Additionally, there will be training programs for bus drivers, technicians, and other staff to handle the specific requirements of electric bus systems.
  1. Public Awareness and Engagement

Hanoi recognizes the importance of public support for the success of this transition. Public awareness campaigns will be conducted to inform citizens about the benefits of electric buses, the environmental impact, and how to use the new services.

  • Awareness Campaigns: The Department of Information and Communication, in collaboration with transport agencies, will run awareness campaigns to educate the public on the environmental benefits of electric buses and how these changes will improve their daily commute.
  • Public Consultation and Feedback: The government will engage with the public to gather feedback and address any concerns related to the transition. Public consultation will be part of the process for designing new bus routes and determining the locations of charging stations.

Environmental and Social Benefits

The transition to electric and green energy buses will have far-reaching environmental and social benefits for Hanoi:

  1. Reduction of Carbon Emissions: By converting the city’s bus fleet to electric and green energy buses, Hanoi will significantly reduce its carbon footprint, which will contribute to both national and global climate change mitigation efforts.
  2. Health Benefits: Reducing the number of diesel-powered buses in the city will result in a decrease in air pollutants such as nitrogen oxides and particulate matter, which have adverse effects on human health. This will lead to cleaner air and improved public health outcomes for Hanoi’s residents.
  3. Traffic Congestion Relief: The development of a more efficient, sustainable, and reliable public transport system will encourage more people to choose buses over private cars. This will alleviate traffic congestion, reduce travel time, and improve the overall quality of life in the city.
  4. Sustainability: By adopting electric and green energy technologies, Hanoi will demonstrate its commitment to creating a sustainable urban environment, setting an example for other cities in Vietnam and Southeast Asia.

Challenges:

  1. High Initial Costs: The purchase of electric buses and the development of necessary charging infrastructure require significant upfront investment. Electric buses are 2.3–4.3 times more expensive than diesel/CNG; operating costs are high due to battery replacement and infrastructure needs.
  2. Technological Adaptation: Training personnel and adapting to new electric vehicle (EV) technologies can be a slow process. Batteries offer limited range (180–250 km/charge), less efficient than diesel for long routes.
  3. Infrastructure Development: Installing electric bus charging stations and upgrading the power grid is essential and can be resource-intensive.
  4. Public Acceptance: Public adaptation to the new systems and overcoming resistance to change may pose challenges.
  5. Electric Bus Supply: Limited availability, with Vinbus as the sole provider of large-capacity buses; medium and small buses are under research with no market-ready options.
  6. Battery Disposal: Emerging recycling standards; VinFast leads battery lifecycle management.

Conclusion

Hanoi is facing significant urban mobility challenges, with growing traffic congestion, worsening air pollution, and an underutilized public transport system. Currently, public buses account for only 15% of total transport in the city. The high reliance on fossil-fuel-powered vehicles, particularly buses, contributes to air pollution levels that often exceed safe limits. 

By 2030, the total number of buses will increase significantly, with over 1,700 buses planned, including electric buses. The policy sets clear objectives for reducing emissions, enhancing public transport accessibility, and encouraging the transition to green energy. The projected bus replacement strategy highlights the planned increase in medium and small buses, aiming to address congestion and ensure more sustainable transit options. The commitment to transitioning towards electric buses by 2030 marks an important milestone in Hanoi’s shift towards eco-friendly transportation solutions. 

Therefore, transitioning to electric buses powered by green energy sources presents a critical solution. This move aligns with both national and global sustainability goals, such as Vietnam’s aim to source 20 per cent of its energy from renewable sources by 2030. Additionally, global examples, such as Shenzhen’s success in fully transitioning to electric buses, demonstrate the feasibility and benefits of such a shift. As Hanoi embarks on this journey, addressing financial, infrastructure and policy barriers will be crucial to ensuring the success of electric and green energy buses in the city.