ECONOMICS
What the unit costs, and what you measure it against.
One investment, and after that, according to the manufacturer, no tariff per kilowatt-hour. How quickly it pays back depends entirely on what you pay now. The headline figure alongside compares against a diesel generator, because that is often what stands where you are waiting for a connection. If you already have a large-consumer connection, it takes longer. All three sums are set out below.
- €8.7 mln
- one-off investment, unit only
- €0.0050
- cost per kWh across 40 years
- 4.9
- months, measured against a generator
One EFL 5000 (5 MW)
- 43,800,000
- energy a year
- €8,700,000
- one-off purchase, unit only
- €0.0050
- cost per kWh across the life
- 40
- year stated life
The cost price is the purchase divided by all the energy over the lifespan. The investment is the price of the unit alone. All amounts exclude VAT.
CUMULATIVE CASH FLOW
What the investment does over twenty years
The line counts the avoided power bill as return, measured against what a diesel generator would cost in fuel. Swap that for a grid connection and the line flattens considerably; that sum is in the assumptions below.
View as table
| Year | Cumulative result |
|---|---|
| 0 | -€8,700,000 |
| 1 | €12,560,737 |
| 2 | €33,821,474 |
| 5 | €97,603,686 |
| 10 | €203,907,372 |
| 15 | €310,211,058 |
| 20 | €416,514,744 |
SAVINGS CALCULATOR
Run it on your own numbers.
This calculator uses the same assumptions as the figures above. Change the output, the running hours and your current price, and you see straight away what changes.
What belongs in that figure?
Everything you pay per kilowatt-hour: your network operator’s transport charge, the supply of the electricity itself and the energy tax. All three fall away. Include the fixed charges by dividing them across your annual consumption; on a 1 MW large-user connection the Dutch network charges alone come to €0.027 per kWh in 2026, with supply and tax on top. Running on a generator puts you at roughly €0.49 in fuel alone.
Your result
- Purchase, one-off
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- Purchase paid off after
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- CO₂ avoided a year
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i
The price of the unit for this type, supplied by the manufacturer. The unit only: transport, placement, connection and commissioning are not included. Where no price is known yet for the chosen type, it shows price on request and no payback time is calculated.
i
The purchase price divided by what you no longer pay the grid each year. Every year that amount comes off the purchase value; at this point nothing is left outstanding.
i
The CO₂ a diesel generator with the same annual output would emit, at 0.26 litres per kWh and 2.68 kg CO₂ per litre. This covers emissions during use; building the unit and its components carries CO₂ of its own.
What a kilowatt-hour costs youi
The purchase price divided by everything the unit has delivered up to that point. Nothing about the cost changes; it is one amount spread across more and more kilowatt-hours. The moment this figure drops below your own price per kilowatt-hour, the purchase is paid back. That is the same moment as above.
i
The purchase price divided by everything the unit has delivered up to that point. Nothing about the cost changes; it is one amount spread across more and more kilowatt-hours. The moment this figure drops below your own price per kilowatt-hour, the purchase is paid back. That is the same moment as above.
- After 1 years
- —
- After 2 years
- —
- After 3 years
- —
- After 5 years
- —
- After 10 years
- —
- After 40 years (stated life)
- —
What this calculator does not account for
- The sum assumes a bare comparison: you already have the surrounding equipment in place. A transformer, housing, the connection to your own installation and the groundwork are not included, and those vary too much by site to put a figure on here. Request a calculation for your own situation and those items go in.
- Maintenance: one day a year according to the manufacturer. How long that day takes and what it costs has not been supplied. As long as those figures are missing, this calculator carries no annual charge.
- The cost of getting a grid connection: transformer, cable route, connection charge and the recurring transport fees. On a heavy connection that runs into six figures, and none of it appears on the grid side of this table.
- The waiting time. In areas with grid congestion new large-user connections sit in a queue, and since 1 July 2026 that applies to small users too. A project standing still costs money that is not counted here.
Everything missing above counts against EFLUXER, with one exception: the connection and waiting costs of the grid. Request a calculation for your own situation and we will put those items in.
All amounts exclude VAT and apply to a single setup. The price per type is supplied by the manufacturer and has not been measured by us.
This calculator needs JavaScript. With it switched off the figures above still stand: they apply to a single EFL 5000 (5 MW) at full output.
TRANSPARENCY
The assumptions behind these figures
Output, purchase price and lifespan are supplied by the manufacturer and have not been measured by us. The diesel and grid prices come from public sources, with the period stated. These are every assumption the figures above rest on.
You pay nothing after the purchase
The unit is a one-off purchase and is yours from then on. The calculation follows the manufacturer’s statement that there is no tariff per kilowatt-hour afterwards, and counts your entire power bill as avoided: transport, supply and energy tax. Maintenance is one day a year; what it costs has not been supplied, so it appears in none of these sums.
Full production
As an example, an EFL 5000 runs at full output all year: 5 MW × 8,760 hours = 43.8 million kWh. In the calculator you pick a type yourself.
Comparison with a generator
Diesel at €1.867 per litre excluding VAT, worked back from the Dutch national statistics office pump price of €2.259 for 2e kwartaal 2026. Consumption 0.26 litres per kWh, supplied by the manufacturer. Only fuel is counted on the diesel side: the generator, its maintenance and the haulage come on top of that.
VAT and taxes
All figures exclude VAT. Local taxes and subsidies are not included.
Lifespan
40 years expected working life, with one day of planned maintenance a year. What that maintenance costs has not been supplied, so it appears in none of these sums.
Comparison with the grid
Grid power for a Dutch business cost €0.141 per kWh at a draw of 20 to 70 GWh in 2e halfjaar 2025, and €0.219 at 2 to 20 GWh, in both cases including taxes and levies and excluding VAT. Source: Eurostat. If you already hold such a connection, the gap is smaller than against a diesel generator and payback takes longer; the calculator shows it for your situation.