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Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →A 2026 Nature Energy study projects that battery-electric passenger vehicles paired with standalone solar charging could have lower lifetime costs than fossil-fuel cars before 2040 in most of the African countries and vehicle segments it models. That is a conditional model result—not proof that every EV is already cheaper, or that every market will reach parity by 2040. Financing costs are a major obstacle.
What the study actually compares
The peer-reviewed study, “Battery-electric passenger vehicles will be cost-effective across Africa well before 2040”, models six passenger-vehicle segments in 52 African countries through 2040. Its country maps do not include Djibouti, Seychelles or Western Sahara.
It compares three pathways: fossil-fuel internal-combustion vehicles, synthetic-fuel internal-combustion vehicles, and battery-electric vehicles charged using standalone solar off-grid (SOG) systems. The central finding is that BEVs paired with SOG charging have lower modeled costs and negative greenhouse-gas abatement costs well before 2040 in most modeled countries and segments. Some modeled cases reach that result as early as 2030. “Most” does not mean all, and a projection is not an observed market price or buyer outcome.
What “cheaper to own” means here
The study compares total cost of ownership (TCO) per kilometre over a vehicle’s life, rather than comparing sticker prices alone. Its calculation includes vehicle and, where relevant, charging-system capital costs; residual value; financing; and operating costs over the vehicle lifetime and annual distance travelled. Operating costs include fuel or charging, vehicle operation and maintenance, insurance, and SOG-system operation and maintenance.
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The comparison is a modeled resource-cost estimate, not a quote for what a particular buyer will pay. The authors remove taxes, fees and import duties from vehicle capital costs and say their comparisons neglect policy-induced cost distortions. The fossil-fuel benchmark also uses a relatively low average gasoline price because fuel taxes are excluded. A buyer’s on-road price, pump price, taxes and loan terms can therefore differ materially from the model.
Why financing may decide the outcome
Lower energy costs alone do not settle the comparison. Financing is one of the study’s most influential inputs: in some modeled segments, financing costs exceed 150% of vehicle capital expenditure. The result is sensitive to vehicle capital cost, annual distance travelled, operation and maintenance, energy consumption, lifetime distance and energy prices as well as financing.
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Financing conditions also vary between countries. For the small four-wheeler segment, the authors estimate that reaching modeled 2030 break-even in some higher-risk countries, including Ghana, would require financing-cost reductions of 7–15 percentage points relative to the study’s assumptions. Those figures describe the model’s scenario, not a financing offer available to buyers.
Solar charging is part of the vehicle-cost calculation
The study does not assume a vehicle charges for free or relies on a generic solar panel. Its modeled SOG setup uses solar PV panels connected to a stationary battery, with both feeding an inverter. The system is optimized for vehicle energy needs against a minimum reliability target and includes an oversizing allowance.
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For a small four-wheeler assumed to travel about 50 km per day, the study estimates an installed system cost of about US$2,700. Its modeled 2025 four-wheeler system-cost range is US$2,500–3,500. These are modeled installed-system estimates, not current retail quotes. Under the study’s modeled assumptions, charging accounts for less than 4% of small-four-wheeler TCO in 2030.
Off-grid charging could help where electricity infrastructure is constrained, but the model does not establish that suitable equipment, skilled installers, reliable financing or practical charging access are available to every buyer. A real system needs to be sized for the vehicle and use pattern, and includes storage, an inverter and installation; a standalone solar product is not evidence of EV compatibility.
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How to apply the findings to a real purchase
The study is useful for understanding how the economics could change, but it cannot identify the cheapest car for an individual buyer. A practical comparison should use country- and buyer-specific inputs:
- On-road price: compare purchase prices after local taxes, duties, fees and any applicable incentives.
- Financing: include the actual loan or lease cost and whether financing is accessible, rather than relying on a general interest-rate assumption.
- Energy and charging: use local fuel and electricity costs, charging access and, if needed, the full cost of a suitably sized solar system.
- Use and vehicle life: estimate annual distance and likely years of ownership; both affect cost per kilometre.
- Running costs and resale: include maintenance, insurance and a realistic residual value for the vehicle and market.
The International Energy Agency’s Electric Vehicles: Total Cost of Ownership Tool offers an interactive way to explore cost variables. The IEA says the page was last updated on 13 December 2022, so treat it as a dated comparison aid rather than a current country-specific quote.
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What the findings mean for African EV adoption
The study’s conclusion is not simply that EVs are cheaper because solar power costs less than petrol. It is that, under modeled assumptions about vehicles, usage, financing and an installed off-grid charging system, the lifetime cost can be lower across most of the countries and segments examined. The authors identify financing and de-risking as key actions for governments and development finance institutions. Until buyers can access financing and dependable charging equipment on suitable terms, a favorable modeled TCO does not guarantee an affordable or practical purchase.
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