The True Cost of Diesel vs Solar

Across Africa, diesel generators have long served as the primary backup power source. While they provide quick power, they come with significant costs. Fuel prices range between 0.35 and 0.70 dollars per kilowatt hour in many regions. Maintenance, engine wear, and replacement costs add even more.

Solar offers a lower cost alternative. Financed solar systems commonly range between 0.10 and 0.18 dollars per kilowatt hour, depending on location and system design.

Fuel Volatility vs Stable Pricing

Diesel markets are sensitive to global price swings. Businesses often face cost uncertainty month to month.

Solar pricing is stable and predictable. Long term offtake agreements lock in rates for years, giving customers reliable cost visibility.

System Lifetime and Maintenance

Diesel generators require regular servicing, oil changes, and part replacement. Over a decade, these costs accumulate significantly.

Solar systems operate with minimal maintenance and have lifespans that exceed 25 years. Modern components are durable and optimized for harsh environments.

Environmental and Operational Impact

Diesel generators emit carbon, particulate matter, and noise. These factors impact communities and long term planning.

Solar generates electricity without emissions. When paired with storage, it provides clean power even during outages.

Conclusion

The economic case for solar is stronger than ever. It delivers lower costs, more predictable pricing, and improved reliability. As technology continues to advance, the shift from diesel to solar will continue across the continent.

Sources

World Bank Diesel Price Analysis
IEA Levelized Cost of Energy Database
IRENA Renewable Cost Report