How does it compare?
Speed
The Volvo 7900 Electric lumbers along with a top speed of 50 mph (80 km/h), respectable but hardly thrilling. The BYD K9 matches it stride for stride at 50 mph (80 km/h) as well, while the Proterra Catalyst E2 sneaks ahead slightly at 65 mph (104 km/h). Not to be forgotten, the Mercedes-Benz eCitaro cruises at a sensible 43 mph (70 km/h).
Range
Fueling range anxiety? Fear not. The Volvo 7900 Electric offers a commendable range of 125 miles (200 km). Meanwhile, the BYD K9 upstages it with a herculean 155 miles (250 km). The Proterra Catalyst E2 swells its chest with an absurdly impressive 350 miles (560 km), while the Mercedes-Benz eCitaro ambles behind with a range of approximately 150 miles (240 km).
Power
The Volvo 7900 Electric flexes its muscles with a 330 kW motor, pushing steadfastly against its competitors. The BYD K9 offers a smidgen less with a 150 kW unit, cruising comfortably. The burly Proterra Catalyst E2 wields a solid 220 kW motor, while the Mercedes-Benz eCitaro powers through city streets with its 250 kW motor.
Charging Time
When the plug calls, the Volvo 7900 Electric requires a moderate 3-4 hours for a full charge. Not to be left idling, the BYD K9 follows suit with a similar 4 hours of wait. The agile Proterra Catalyst E2, however, showcases speedy capabilities, filling up in 2-3 hours. The Mercedes-Benz eCitaro takes a bit longer, demanding about 4.5 hours while sipping the electrons.
Price
Time to raid the piggy bank. The Volvo 7900 Electric is tagged at a robust $97,350 (£73,000 / €88,000). The princely BYD K9 hovers around $770,000 (£577,000 / €700,000). At the summit, the Proterra Catalyst E2 commands a cool $789,000 (£591,000 / €715,000). Lastly, the Mercedes-Benz eCitaro comes with a handsome price of $825,000 (£618,000 / €750,000).
Final Musings
The Volvo 7900 Electric stands as a sturdy, albeit slightly subdued, pillar in the electric bus pantheon, offering a harmonious blend of solid range, decent power, and commendable charging times, all wrapped in a more wallet-friendly package compared to some of its more extravagantly priced peers. Whether value trumps sheer prowess depends on the discerning buyer’s predilections, but one things certain: the electric revolution is roaring, and everyone wants a front-row seat.



