Why Generation 1 Batteries Are Oversized and Under-Utilized
The early adoption of electric buses often followed specifications designed for diesel fleets, assuming similar range requirements and performance metrics. However, EV-CAN data shows that hundreds of UK buses, built with large, heavy batteries meant to cover diesel-like distances, are using only a fraction of their capacity. Many buses are returning to base with up to 60% battery capacity left—meaning they’re carrying excess weight, requiring more energy to operate, and ultimately leading to increased costs in charging, grid capacity, and infrastructure.
This underutilization of battery capacity means more than just wasted energy; it’s an indication that the procurement of electric buses could be more efficient and cost-effective if based on real-world data. EV-CAN’s high-frequency insights are providing fleet operators with a new way of understanding battery needs, showing that smaller, lighter batteries would suffice for many routes and reduce unnecessary weight and energy draw.
Energy profile per vehicle over a continuous period
The Cost of Oversized Batteries: More Than Just Energy Waste
Carrying oversized batteries comes with a series of avoidable costs:
- Unnecessary Charging: Large batteries that aren’t fully utilized still need regular charging, creating avoidable demands on charging infrastructure and energy costs.
- Grid Connections and On-Site Storage: The need to recharge oversized batteries can strain grid connections and require costly on-site storage solutions, complicating infrastructure without real benefit.
- Limited Route Flexibility: With buses returning to base with so much unused capacity, fleets could be running longer routes, covering more distance with the same resources. Instead, many buses aren’t making the most of their battery’s potential.
Optimizing Phase 2 Procurement with Real-World Telematics Data
As the next generation of electric buses is introduced, leveraging real-world data from Phase 1 operations will be crucial for more efficient, cost-effective fleet rollouts. EV-CAN provides fleet operators with the high-frequency, detailed insights necessary for smart decision-making. By analyzing data on battery utilization, route efficiency, and energy consumption, EV-CAN helps operators avoid the pitfalls of oversized batteries in future procurements.
Through route design that takes into account the actual needs of each line, future electric bus fleets can be fitted with right-sized batteries, reducing vehicle costs and allowing operators to invest in more buses for more routes. Smaller batteries mean lighter buses, reduced operational costs, and less need for extensive infrastructure upgrades, accelerating the rollout of zero-emission fleets and supporting the UK’s decarbonization goals.
How EV-CAN Supports Smarter, Data-Driven Decisions
EV-CAN isn’t just about monitoring battery performance; it’s a tool for transformative fleet management and planning. By providing accurate, real-time data on battery usage and range, EV-CAN empowers fleet operators to make informed decisions about vehicle specs, battery size, and route optimization. This data-driven approach enables fleets to adopt a more flexible, efficient strategy that aligns with operational needs and sustainability goals.
In the push toward a zero-emission future, every kilowatt-hour counts. With EV-CAN, fleet operators can better understand how their buses perform in the real world, ensuring that Phase 2 rollouts are tailored to true battery needs rather than over-specified assumptions. This shift not only reduces costs but also frees up resources for deploying electric buses on more routes, moving the UK closer to its net-zero targets.
