Electric Vehicle: Technical Advantages, Energy Math and Bangladesh's Readiness

Although Bangladesh's transportation system has expanded rapidly, it still relies mainly on imported petrol and diesel. As a result, pressure on foreign exchange is increasing, energy security is at risk, and fluctuations in oil prices in the international market are directly affecting the country's economy. At the same time, traffic congestion and air pollution have become serious in the capital Dhaka and other major cities. In this reality, electric vehicles or EVs have emerged as a potential alternative for Bangladesh. The use of EVs is increasing rapidly around the world and has already become part of the general transportation system in China, India and Europe. Compared to conventional fuel-powered vehicles, EVs are more energy efficient, have lower operating costs and are easier to maintain. Bangladesh's short-distance travel, long traffic jams and excess power capacity at night can make the EV system more effective. Therefore, experts believe that if proper planning and infrastructure are developed, Bangladesh will be able to gradually enter the era of electric vehicles.

Section 1 — Energy efficiency

A large part of the energy generated in conventional petrol and diesel-powered vehicles is wasted through heat, friction and smoke. As a result, a significant part of the engine's energy is lost before it reaches the wheels. In contrast, since mechanical losses are much less in electric vehicles, most of the energy is directly converted into kinetic energy. Due to this, EVs are able to travel longer distances using relatively less energy. According to experts, in an energy-dependent country like Bangladesh, this technology can help reduce foreign exchange pressure and build a more efficient transportation system in congested urban environments.

Section 2 — Battery technology

The main source of energy in electric vehicles is the battery. The two most commonly used technologies currently are Lithium Iron Phosphate (LFP) and Nickel Manganese Cobalt (NMC). Research has shown that LFP batteries have a longer lifespan, are very safe, and are moderately priced, making them the most suitable for Bangladesh. On the other hand, NMC batteries have a higher energy capacity, but their durability is relatively low and their price is high. Since LFP batteries perform better in hot weather, this technology is being given more importance in household and commercial use.

Section 3 — Charging infrastructure

According to experts, the biggest challenge for EV systems is not technology, but changing charging habits. Currently, three types of charging systems are most commonly used. Level-1 chargers use 2 to 3 kW of electricity and are suitable for overnight charging at home. Level-2 chargers have a capacity of 7 to 22 kW, which can charge a car in an office or public place in 2 to 4 hours. On the other hand, Level-3 fast chargers used for highways are capable of charging a car in just 30 to 60 minutes with a capacity of 50 to 150 kW. Those concerned believe that since most people in Bangladesh have little daily commute, overnight charging at home may be sufficient in many cases.

Section 4 — Cost per kilometer

Bangladesh’s electric vehicle market has many advantages, and one of the most significant benefits is that EVs have lower operating costs compared to traditional gasoline-powered cars. Currently, petrol costs around Tk 135 per liter and diesel costs around Tk 115, while the average cost of residential electricity is Tk 7.742 per unit. According to this calculation, a petrol-powered vehicle costs around Tk 11.25 per kilometer, and the total cost per 100 kilometers is around Tk 1,150. In the case of a diesel-powered vehicle, the cost per kilometer is around Tk

7.19 and the total cost per 100 kilometers is around Tk 810. In contrast, an electric vehicle costs just Tk 1.24 per kilometer and the total cost per 100 kilometers is around Tk 210. In addition, the maintenance cost of EVs is also much lower, which makes them more affordable in the long run.

Section 5 — Grid and Rooppur plant

The most common assumption regarding the introduction of EVs in Bangladesh is that the national power grid will not be able to take the additional pressure. However, according to experts, the reality is different. The country has lower electricity demand at night than during the day, and significant excess generation capacity is unused. EV charging at night is possible only by using this excess electricity. The 2,400 MW Rooppur Nuclear Power Plant is capable of providing stable electricity day and night, which can make the night charging system more effective. Studies have shown that using this electricity capacity, it is possible to charge about three lakh EVs overnight. As per the plan, 70 percent of the night electricity can be used for household and industrial purposes, 20 percent for EV charging, and the remaining 10 percent can be kept as a reserve.

Section 6 — Maintenance advantage

Since the mechanical structure of an electric vehicle is much simpler than that of a conventional petrol-powered vehicle, its maintenance cost is significantly lower. A typical petrol-powered vehicle has more than 2,000 moving parts, while an EV has about 20. In addition, petrol vehicles require engine oil, multi-speed gearboxes, and exhaust systems, but EVs do not. This reduces the cost of regular servicing and replacement of parts. According to experts, EVs also have a lower risk of breakdowns due to their lower mechanical complexity, which can save individual users, ride-share drivers, and fleet operators significant money in the long run.

Section 7 — Regenerative braking and silence

The regenerative braking technology of electric vehicles converts the kinetic energy lost during braking into electrical energy and returns it to the battery, which recovers 10–15 percent of the energy. As a result, friction on mechanical brake pads is reduced, maintenance costs are reduced, and brake life is increased. Silent driving improves the environment and public health by reducing mechanical noise pollution in the city by about half. From a strategic point of view, this silence does not allow the enemy to be alerted during border patrols or intelligence operations, which makes EVs a long-term strategic asset in addition to everyday vehicles.

Section 8 — Suitability for Bangladesh

Bangladesh's urban transportation is naturally suitable for EVs. Daily commutes here are 10–30 kilometers, less than the 40–80 kilometers in Europe and America. The average speed in heavy traffic is 15–25 km/h and stop-and-go traffic is very high, while elsewhere it is moderate and 40–70 km/h. In this environment, the regenerative braking of EVs recovers energy most effectively. As a result, sufficient range is available even with low battery capacity, which is cost-effective. The urban dynamics of Bangladesh are naturally ideal, safe and economically suitable for EVs, compared to long highway driving.

Section 9 — Armed forces application

EVs are very important technically and operationally in the strategic management of the defense forces. The loud noise, high thermal presence and the need for continuous fuel supply of conventional vehicles have been replaced by EVs. The noise of EVs is very low, which does not allow the enemy to be alerted during border patrols and reconnaissance operations. The absence of a combustion engine reduces heat emission, making it easier to hide from infrared surveillance. The reduced dependence on fuel logistics simplifies the supply chain, making EVs a powerful strategic asset beyond fuel savings.

Section 10 — Local manufacturing

A realistic roadmap for local manufacturing can be developed by dividing Bangladesh’s electric vehicle industry into three phases. The first phase includes readily available technology components including charger assembly, wiring harness and body panels, which can be started immediately in line with the existing electronics industry. The second phase includes battery pack assembly and electric motor manufacturing, which, although moderately skilled, can be achieved within 3–5 years through foreign technology transfer and joint ventures. The third phase will involve the production of battery cells in a highly controlled environment, including pure lithium and cobalt, which is a long-term goal. This phased initiative will make Bangladesh a regional manufacturing hub for the EV industry.

Section 11 — Technical roadmap

A realistic and step-by-step technical roadmap is essential for EV adoption in Bangladesh. The first phase (2025–2027) will focus on initial adoption and infrastructure construction; The legal framework will be developed along with the establishment of public charging stations, pilot projects with imported EVs, and limited trial use in government and public transport. In the second phase (2028–2030), local assemblies will be launched for expansion, charging networks will be spread along major highways, and the business community will be involved by starting production of medium-tech battery packs. In the third phase (2031–2035), local production will be scaled up to commercial levels, export markets will be created, and a battery recycling industry will be developed. If this plan is implemented by 2035, the country will achieve a sustainable and self-sufficient EV ecosystem.

Conclusion

EVs are not only better for the environment—they also represent a smart business or strategic choice. An EV uses far less energy than a combustion engine car so that operating it will be approximately 1/10th the cost of running a petrol or diesel vehicle. Furthermore, when it comes to maintenance, electric vehicles are cheaper to maintain due to their dramatically reduced mechanical complexity. Efficiency, cost-effectiveness and low maintenance – these three advantages make EVs realistic for Bangladesh. The national grid is capable of handling the charging pressure of EVs, especially the 2,400 MW capacity of the Rooppur Nuclear Power Plant, which will ensure reliable night-time power supply. Urban short journeys, heavy congestion and slow traffic are ideal for EVs. As a result, Bangladesh is technologically ready. By developing local manufacturing, battery assembly and charging networks, the country can become a regional EV hub, which will maintain energy security, reduce foreign exchange pressure and accelerate the strategic modernization of the transport sector. The transition to the electric era is no longer a question of technological feasibility, but now it is a question of strategic timing.

The writer is a commissioned officer at Bangladesh Army