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How Much Is Your Generator Really Costing You?
How much is your generator really costing you: The Hidden Cost of Diesel Power in Zimbabwe
For many farms, mines, construction sites and remote businesses in Zimbabwe, diesel generators have become a necessity rather than a backup.
When the grid is unavailable or power is needed in remote locations, generators keep operations running. But while most people know how much they spend on diesel, very few calculate the true cost of owning and operating a generator.
Fuel is only one part of the equation.
If you're relying on a generator every day, the real cost may be much higher than you think.
The Most Obvious Cost: Diesel
The first expense everyone notices is fuel.
Diesel prices in Zimbabwe fluctuate regularly, and even small increases can have a significant impact on businesses running generators for several hours every day. Recent regulated diesel prices have been around US$1.87 per litre, although prices vary over time and between suppliers.
A generator running for eight to ten hours a day can consume hundreds or even thousands of litres of diesel each month, depending on its size and load.
For many businesses, fuel has become one of the largest operating expenses.
Fuel Is Only Part of
the Story
A generator also requires regular servicing.
This includes:
Engine oil changes
Oil filters
Fuel filters
Air filters
Coolant replacement
Belts
Battery maintenance
Mechanical repairs
Unlike a solar power system, these maintenance costs continue throughout the life of the generator.
The more hours a generator runs, the more frequently it needs servicing.
How much is your generator really costing you
Downtime Costs Money
Every hour a generator is unavailable can affect productivity.
Unexpected breakdowns can result in:
Delayed irrigation
Construction delays
Production downtime
Lost working hours
Missed deadlines
In many industries, the cost of downtime can exceed the repair bill itself.
Fuel Theft Is a Real Business Cost
Unfortunately, fuel theft remains a challenge for many businesses.
Diesel stored on-site can be vulnerable to theft, while transporting fuel to remote locations increases both risk and labour costs.
Unlike diesel, solar energy cannot be stolen from a fuel tank.
Transporting Fuel
Remote sites create another hidden expense.
Someone has to:
Purchase fuel.
Transport it.
Store it safely.
Refill generators.
Monitor fuel levels.
These tasks consume valuable staff time and increase operating costs.
How much is your generator really costing you
Generator Noise and Working Conditions
Generators are noisy.
On farms, construction sites and events, constant engine noise can affect the working environment.
Solar-powered systems operate quietly, making them suitable for locations where noise reduction is important.
How much is your generator really costing you?
What About Fuel Price Increases?
Generator operating costs rarely stay the same.
Zimbabwe has experienced regular fuel price changes, with diesel remaining one of the country's most significant operating expenses for businesses that depend on backup power. At the same time, higher diesel demand has been linked to increased generator use during periods of unreliable electricity supply.
A solar power system, by comparison, uses sunlight as its primary energy source, making long-term operating costs far more predictable.
Can Solar Replace Every Generator?
Not always.
Some applications require large continuous loads or equipment that is best suited to conventional generators.
However, many farms, construction sites, boreholes, workshops, remote offices and temporary sites can significantly reduce generator operating hours by using a properly designed solar and battery system.
For many businesses, the goal is not necessarily to eliminate diesel entirely—but to burn far less of it.
Where Volt Wagon Fits In
Volt Wagon provides portable solar power that can be moved wherever electricity is needed.
Instead of permanently installing a solar system at one location, the same unit can be used to power:
Centre pivot irrigation
Boreholes
Construction sites
Workshops
Farm offices
Mining operations
Events
Remote work sites
Every system is sized according to the customer's requirements, helping businesses reduce diesel consumption while maintaining reliable power.
Is It Time to Review Your Generator Costs?
If you've never calculated the total cost of running your generator, now is a good time.
Look beyond fuel.
Consider:
Diesel consumption
Routine servicing
Repairs
Downtime
Labour
Fuel transport
Fuel theft
Generator replacement
Lost productivity
Once all these costs are added together, the numbers often tell a very different story.
How much is your generator really costing you?
Conclusion
Generators remain an important power source across Zimbabwe, particularly in remote areas and during electricity interruptions.
However, understanding the total cost of ownership is essential when comparing different power solutions.
For many businesses, reducing diesel dependence through mobile solar power can lower operating costs, improve flexibility and provide a more predictable long-term energy solution.
If you're unsure whether a Volt Wagon could reduce your generator costs, we'll help assess your power requirements and recommend the most suitable solution.
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