If you use the Mobile EV Fast Charger, you can save up to £9,600 each year compared to diesel. The Mobile EV Fast Charger costs less for energy and maintenance, so it is a cheaper choice for your fleet. The Mobile EV Fast Charger has fewer moving parts, so it breaks down less and needs fewer repairs. You can move the Mobile EV Fast Charger to new places easily, which helps your work be more flexible. Electric charging means you do not need to worry about emissions checks or extra fees, so your work is simpler. If you check your fleet costs often, you can find ways to save money and work better over time. Choosing electric charging helps the environment and gets your business ready for future rules. Watching your energy use and costs can show you where you can save more money and help you make better choices.
When you look at Door Energy Limited’s Mobile EV Charging Station and diesel, you must check all costs. Each one has its own features and costs. Door Energy’s charger is special because it is modular and very strong. You can use it for road rescue, building sites, and factories. It gives 180kW power and has two charging guns, so it is good for busy fleets.
Every day a vehicle is not working, you lose money. Regular checks and quick repairs help you stop losing time and money.
| Factor | Mobile EV Charging Station | Diesel Solution |
| Downtime Risk | Low (fewer breakdowns) | High (more repairs) |
| Service Speed | Fast | Slower |
When you look at all these costs, you can see that Door Energy Limited’s Mobile EV Charging Station gives your fleet many benefits. You save money on fuel, have less downtime, and make logistics easier, while also following new rules.
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You can find out how much you save each year by using a simple method. This part shows you easy steps and formulas for both diesel and Mobile EV Fast Charger options. Follow these steps to get the right numbers for your fleet.
To work out your yearly diesel fuel cost, use this formula:
Annual Diesel Fuel Cost = (Average Fuel Consumption per Hour) × (Total Operating Hours per Year) × (Average Diesel Price per Litre)
Tip: Diesel generators usually use between 2 and 4 litres each hour. This depends on the load and the model.
Diesel generators need regular checks and service. You must count the cost for oil changes, new filters, and engine checks. Use this formula:
Annual Diesel Maintenance Cost = (Number of Services per Year) × (Average Cost per Service) + (Estimated Repair Costs)
To find your yearly electricity cost for the Mobile EV Fast Charger, do these steps:
Annual Electricity Cost = (Total kWh Used per Year) × (Average Electricity Price per kWh)
Note: Electricity prices can go up or down during the year. Use an average from the last year for the best guess.
The Mobile EV Fast Charger has fewer moving parts than diesel units. This means you pay less for service. Use this formula:
Annual Service Cost = (Number of Routine Checks per Year) × (Average Cost per Check) + (Estimated Minor Repairs)
You need good information to make your numbers right. Follow these tips:
Tip: Keeping good records helps you spot hidden costs and make better choices for your fleet.
By using these steps and formulas, you can compare both options side by side. This helps you see where you can save the most money each year.
You can see how much you might save each year by looking at a real example. This section shows you how to work out the costs for both diesel and electric charging. Use these steps to compare the two options for your own fleet.
Let’s say you use a diesel generator to charge your vehicles. Here is how you can calculate your yearly costs:
Annual Diesel Fuel Cost = 3 litres/hour × 2,000 hours × £1.60/litre = £9,600
Annual Diesel Maintenance Cost = (4 × £250) + £500 = £1,500
Total Diesel Annual Cost = £9,600 + £1,500 + £300 = £11,400
Diesel generators can cost you more if fuel prices rise or if you need extra repairs.
Now, look at the costs for using a Mobile EV Fast Charger from Door Energy Limited:
Annual Electricity Cost = 5,000 kWh × £0.30 = £1,500
Annual Service Cost = (2 × £100) + £100 = £300
Total Mobile EV Fast Charger Annual Cost = £1,500 + £300 = £1,800
You can see that the Mobile EV Fast Charger keeps your yearly costs much lower.
Here is a table to help you compare the two options:
| Cost Type | Diesel Solution | Mobile EV Fast Charger |
| Fuel/Electricity | £9,600 | £1,500 |
| Maintenance | £1,500 | £300 |
| Compliance Fees | £300 | £0 |
| Total Annual | £11,400 | £1,800 |
Use your own numbers to see how much you can save. The more you use your fleet, the bigger your savings will be.
You need a clear view of your yearly costs before you make a decision. The table below shows a side-by-side comparison of the main expenses for both diesel and electric charging solutions. This makes it easy for you to see where your money goes each year.
| Cost Category | Diesel Solution | Mobile EV Fast Charger |
| Fuel/Electricity | £9,600 | £1,500 |
| Maintenance | £1,500 | £300 |
| Compliance Fees | £300 | £0 |
| Total Annual | £11,400 | £1,800 |
This table helps you spot the biggest differences in cost. You can see that fuel and maintenance make up most of the diesel expenses.
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When you switch to the Mobile EV Fast Charger, you keep more money in your business each year. The savings add up quickly. Here is how you work out your total annual savings:
Total Annual Savings = Total Diesel Annual Cost - Total Mobile EV Fast Charger Annual Cost
So, with the numbers above:
Total Annual Savings = £11,400 - £1,800 = £9,600
You save £9,600 every year. This money can help you grow your business, buy new equipment, or improve your fleet.
Every pound you save on running costs gives you more freedom to invest in other areas.
You can understand your savings better when you see them. The chart below shows the yearly costs for both options. The difference stands out.
| Solution | Annual Cost (£) |
| Diesel Solution | 11,400 |
| Mobile EV Fast Charger | 1,800 |
If you want to make a smart choice for your fleet, look at these numbers. The Mobile EV Fast Charger helps you cut costs and run your operations more efficiently.
Seeing the numbers side by side makes your decision easier. Lower costs mean a stronger business.
You want your vehicles to keep moving and not stop. The Mobile EV Fast Charger helps you avoid breakdowns. It has fewer moving parts, so less can go wrong. You do not wait long for repairs or checks. Fast charging means your vehicles get back to work quickly. You do not need to wait for fuel to arrive. You also do not worry about engine problems. Your team can move the charger to any place needed. This keeps your work going without big stops.
Fast charging and fewer problems mean your vehicles work more and spend less time in the garage.
Switching to electric charging is good for the planet. Many governments want companies to use EV charging stations. You might get rewards for meeting green goals. You also skip emissions checks and extra costs. Clean energy lowers your carbon footprint and helps green projects.
Picking electric charging is a smart way to follow future rules and show you lead in green actions.
You save money over time with electric charging. Electric vehicles and chargers can cost more at first. But you pay less for repairs and checks. You do not need oil, filters, or engine fixes. Government grants and tax cuts can help you save even more. You spend less as you avoid high fuel prices and big repairs.
| Benefit | Diesel Solution | Mobile EV Fast Charger |
| Maintenance Costs | High | Low |
| Fuel/Energy Costs | Unpredictable | Stable |
| Compliance Fees | Rising | None |
| Long-Term Savings | Limited | Significant |
Over the years, you keep more money and can grow your business instead of spending it on running costs.
Door Energy Limited keeps making better battery energy storage systems and charging technology. You get strong equipment and support that helps your fleet stay ready for the future.
You can change the savings calculation to match your own fleet. First, write down all your vehicles and what charging they need. Keep track of how many hours each vehicle works every week. Write down what kind of charging station or generator you use. Collect information about how much fuel or electricity each vehicle uses. You should also count how many times you check or fix each vehicle every year.
Tip: You can use a spreadsheet to keep track of costs and see patterns. This helps you find ways to save more money.
You need to be careful about common mistakes when working out costs. Some people forget to add hidden fees or time when vehicles are not working. Others use old fuel prices or miss new service charges. Always use the newest numbers for fuel and electricity prices. Check if government rules or fees have changed.
| Common Pitfall | How to Avoid |
| Using old price data | Check prices every quarter |
| Missing downtime | Track hours lost each month |
| Ignoring small fees | Add every cost to your list |
You can stop mistakes by keeping good records and checking your numbers often.
You should look at your fleet costs often. Set a reminder to check your spending every three months. Compare what you really spend with what you thought you would spend. Watch for big changes in fuel, electricity, or service costs. If you see costs going up, find out why. You might need to change when you charge or how often you do checks.
Checking your costs often helps you stay on track and make good choices for your fleet.
By doing these steps, you can keep your fleet working well and save more money every year. You will also be ready if prices or rules change.
You can see how much you save each year by following the steps in this guide. Use your own numbers to check your yearly costs. The Mobile EV Fast Charger helps you cut costs and improve efficiency. To make your savings clear and actionable:
Switching to electric charging supports sustainability and keeps your business ready for the future. Start by reviewing your current costs and see how much you could save.
First, add up all your diesel costs. This means fuel, maintenance, and compliance fees. Next, add your electricity and service costs for the Mobile EV Fast Charger. Take away the electric costs from the diesel costs. The answer is your yearly savings.
You can move the Mobile EV Charging Station to many places. Its design lets you set it up on highways, building sites, or in busy areas. You do not need a fixed power supply to use it.
You need to check the system often. Most jobs are just software updates and looking over the charger. You do not need to change oil or filters. There are fewer moving parts, so you spend less time fixing things.
You do not need emissions permits for the Mobile EV Charging Station. You must follow local safety and electrical rules. This is easier than getting permits for diesel generators.
You have less downtime with the Mobile EV Fast Charger. There are fewer breakdowns and charging is faster. This keeps your vehicles working more. Diesel generators break down more and take longer to fix.
You can use the Mobile EV Fast Charger for big fleets. It has two charging guns, so you can charge two vehicles at once. High power means busy fleets wait less to charge.
You help the planet by using electric charging. You do not need emissions checks and you help meet green goals. Cleaner energy makes the air better for everyone.
You should check your costs every three months. Regular checks help you see changes in fuel, electricity, or service costs. This keeps your fleet running well.