Lead with charging, not the vehicle
In early October 2026, Kiira Motors Corporation outlined plans to deploy more than 1,500 electric buses across 40 urban centres over the next three to five years, supported by roughly 260 DC fast-charging units—high-power direct charging that fills a battery in under an hour—while scaling production from 11 to 88 buses per day. A parallel Kiira–Vivo Energy partnership is meant to expand charging in Kampala and Jinja. For a Ugandan fleet operator, the capital plan should start with the charging infrastructure, because that is where grid constraints and capital cost concentrate, not the bus order.
Depot charging vs public DC fast charging: where the budget breaks
Most private fleets should budget depot charging because buses sit idle overnight and energy is cheapest then. Public DC fast charging is for on-route top-ups. Kampala currently has seven DC fast chargers—four from Kiira Motors and three from other e-mobility players—with KMC units ranging from 60 kW (kilowatts, the rate of power) to 360 kW. The Ministry of Energy has cited about Shs 2.4 billion as the cost of a single public charging station, a useful anchor when weighing build-versus-buy for shared infrastructure. A kilowatt-hour (kWh) is the unit of energy you buy, and your depot's total daily kWh determines the real energy line.
- Depot charging
- Overnight on your site; highest upfront for chargers and power, but lowest per-kWh cost if you charge off-peak and you control scheduling.
- Public DC fast charging
- Pay per session on a shared network; high power, high session cost; useful for route top-ups and back-up, not as a primary cost strategy at scale.
- Hybrid depot + public
- Most realistic for buses that leave the depot for long daily routes; budget both capital and recurring tariffs.
Grid connection upgrades are the line item many fleets underestimate
The charger itself is rarely the most expensive part; bringing enough power to the site can be. Uganda's commercial tariff for three-phase supply up to 100 Amps is time-of-use—the price changes by time of day—with peak at 666.5 UGX/kWh, shoulder at 562.1, and off-peak at 429.7. A larger depot may move into industrial tariff bands, where the ERA base average is 355.1 UGX/kWh for medium industrial, 300.4 for large industrial, and 203.6 for extra-large. If your site needs a transformer upgrade, a new high-voltage line, or a peak demand charge—a fee for your highest single moment of draw—the quote can dwarf the chargers.
Shs 2.4 billion
Indicative cost of a single public charging station, Ministry of Energy
Time-of-use tariff: when you charge changes the cost
Charge buses when Ugandan power is cheapest, not simply when they arrive. Under UEDCL's Q4 2026 commercial time-of-use tariff, off-peak energy costs 429.7 UGX/kWh against 666.5 at peak—roughly a third less per unit before any industrial tariff. Schedule your charge window and size batteries so buses can top up once daily during off-peak. For the battery capacity math, see our battery sizing guide for Ugandan business outages.
Solar-plus-storage changes the capital equation, but not automatically
If you already run solar, a depot can pair rooftop panels with battery storage to shave peak demand and cut grid purchases. A diesel-generated kilowatt-hour runs roughly four times grid off-peak, so avoiding diesel is usually clear; the case for solar depends on your consumption shape and capital budget. Compare the real cost per kWh in our solar versus diesel analysis.
Captive rooftop solar below 500 kW is exempt from a generation licence, which keeps many depot installations simpler. Above that, recent ERA guidance paused new grid-connected solar and wind permits, so size the array within your licence headroom. For what that means in practice, see our briefing on Uganda's 200 MW solar ceiling.
Don't anchor the budget to a single range claim
The Kayoola EVS bus is claimed to have a range up to around 300 km on one charge. Use that as a planning number, not a contract; route load, terrain, air conditioning, and battery degradation will move it. Model energy use per kilometre and include replacement batteries when the warranty or lease ends. Our commercial fleet TCO guide for Uganda walks through the per-kilometre logic.
Budget rule of thumb
Price the charger, the switchgear, the grid upgrade, the battery, and the tariff—not just the bus. If the grid connection quote or peak demand charge is unclear, pause the vehicle order until you have a written cost.
A working budget structure
- Build a load profile: buses, daily kWh, charger kW, arrival times and dwell time.
- Quote the grid upgrade first: transformer, switchgear, connection works and peak demand charge.
- Size battery storage to match off-peak charging and avoid simultaneous peak draws.
- Compare behind-the-meter solar and diesel fallback on levelised cost per kWh.
- Stress-test route energy with a conservative buffer for terrain, load and degradation.
The charging piece is manageable once you separate fixed infrastructure from variable energy. Most budgets break because the depot grid work and time-of-use behaviour were treated as afterthoughts. Get independent advice before committing capital—this depends on your site and route profile.