The Cost of Power
The Netherlands pairs a dense industrial and commercial base with among the EU’s most expensive electricity. Non-household prices for a medium consumer reached around €0.20 per kWh in the first half of 2025 — above the EU average of roughly €0.18/kWh, placing the Netherlands among the ten most expensive markets in the bloc. For a factory, data centre, greenhouse or commercial estate, the price of a kilowatt-hour is the single biggest reason to stop wasting any.
Larger industrial sites on bigger bands pay less — roughly €0.10–0.15/kWh all-in — but most qualifying commercial and light-industrial sites, the offices, greenhouses, logistics depots, manufacturing plants and data halls that make up the bulk of Dutch demand, sit nearer the ~€0.15–0.20/kWh band. So the argument that “industrial power is cheap, efficiency doesn’t move the needle” simply does not hold for them. Every percentage point of wasted current is charged at one of the EU’s higher unit rates.
| Who pays | Typical price | Notes |
|---|---|---|
| Non-household, medium band (500–2,000 MWh) | ~€0.20/kWh (H1 2025) | Above the EU average of ~€0.18/kWh — among the highest in the EU |
| Large industry (all-in, larger bands) | ~€0.10–0.15/kWh | Lower, but the energy lever still works at scale |
| Data centre / large commercial | ~€0.15–0.20/kWh | Where most qualifying sites sit — high bills |
| Households (incl. taxes & levies) | ~€0.234/kWh (H1 2025) | Among the higher residential prices in the EU |
Non-household and large-industry prices are from Eurostat (medium-band non-household, H1 2025); the household figure is the Eurostat average for a medium-consumption household (2,500–5,000 kWh band, including all taxes, levies and VAT), at ~€0.234/kWh in H1 2025. Figures are current as of 2024–2025 and are revised regularly — verify against Eurostat electricity prices and the regulator ACM at the time of reading. Prices are per kWh and exclude site-specific demand and capacity charges.
How You’re Billed
The headline cent-per-kWh is only part of the story. A metered Dutch site pays for the energy itself, for the networks that deliver it, for taxes and decarbonisation levies — and, critically for power quality, for the contracted capacity it reserves (in kW / kVA) and for the reactive energy it draws. Those last two move directly when you correct power factor — and the first of them is doubly valuable on a grid where capacity itself is scarce.
| Component | What it is | Cut by power quality? |
|---|---|---|
| Energy (wholesale / commodity) | The kWh you consume, at the traded price | Indirectly — lower network losses |
| Network charges (nettarieven) | Grid fees for delivering power, set under the ACM Tarievencode | Partly |
| Taxes & levies | Energy tax (energiebelasting) and decarbonisation costs | No |
| Contracted capacity / demand charge (kW / kVA) | A charge on the connection capacity you reserve and the apparent-power demand you place on the network | Yes — lower apparent power means a lower charge |
| Reactive-power charge (blindvermogen, kvarh) | A charge on reactive energy drawn once power factor falls below the cos φ 0.85 threshold (set under the Tarievencode, varies by operator) | Yes — power factor correction cuts it directly |
So the answer to two questions Dutch operators often ask: yes, you are billed for capacity and demand — through the contracted-capacity and apparent-power charges — and yes, you are billed for poor power factor, through the reactive-power charge (blindvermogen) once you slip below cos φ 0.85. Both fall as power factor rises toward unity, which is exactly what correction delivers — and the capacity it frees is, in a congested grid, worth more than the charge it saves.
Power Factor & Regulation
Dutch grid operators bill reactive energy on a clear rule set under the national Tarievencode. Once a site’s power factor falls below cos φ 0.85 (measured on a monthly average), the excess reactive energy (blindvermogen) is charged — the exact rate and threshold vary by operator. A site running at 0.80–0.90 power factor — typical for motor- and drive-heavy plants, greenhouses and cold stores — therefore pays a recurring charge that disappears the moment it is corrected to 0.98+, alongside lower contracted-capacity and apparent-power demand fees.
On harmonics and supply quality, Dutch connections must hold voltage quality within EN 50160 — applied through the ACM Netcode elektriciteit — and manage harmonic emissions under the IEC 61000 series, while generator and inverter connections follow the EU RfG Network Code administered through Netbeheer Nederland and TenneT. As variable-speed drives, rectifiers, non-linear UPS and the country’s vast base of behind-the-meter solar multiply on Dutch sites, staying inside those limits increasingly requires active harmonic filtering — not just a one-off survey.
The reactive-energy (blindvermogen) charge below cos φ 0.85 is set under the ACM Tarievencode and applied per grid operator (netbeheerder) in their published tariffs; voltage-quality limits follow EN 50160 via the Netcode elektriciteit, harmonic emissions follow the IEC 61000 series, and generator/inverter connection follows the EU RfG Network Code via Netbeheer Nederland and TenneT. Confirm the charge, threshold and limits that apply to your connection with your grid operator and supplier, and with ACM — they vary by region and are updated periodically.
Why Power Quality Matters Here
One structural fact dominates the Dutch market above all others: grid congestion — netcongestie. More than 12,000 companies are on waiting lists for a new or enlarged connection, around 90% of Dutch businesses report direct or indirect congestion effects, and connection queues doubled in 2024. Independent estimates (BCG/Ecorys) put the economic drag at up to ~€40 billion a year. In large parts of the country you simply cannot buy more grid capacity at any price, and a new connection can take years. That makes HarmoniQ’s ability to free 10–20% of the transformer and switchgear headroom you already have the single most valuable thing power quality can do here — it lets a constrained site electrify, add EV charging or expand without a connection it cannot get.
Two further forces reinforce the case. The tariff — already covered, and among the highest in the EU. And the generation mix: renewables passed 50% of Dutch electricity generation for the first time in 2024 (wind ~27%, solar ~18%), with installed solar at around 24 GW and a national target of 50 GW by 2030. That inverter-heavy supply raises harmonic distortion and voltage volatility at exactly the commercial and industrial sites we serve. What matters less in the Netherlands is resilience: the grid is among the most reliable in the world — around 24 customer-minutes lost per customer per year — so unlike sites in parts of Africa or the Gulf, Dutch operators are driven by capacity, cost and compliance rather than by keeping the lights on.
The Solution
HarmoniQ installs a coordinated, solid-state system at the low-voltage switchboard — where Dutch sites carry their cost, where the cos φ 0.85 reactive charge bites, where solar-inverter harmonics concentrate, and where freeing headroom relieves a connection you cannot enlarge. We deploy three products as the site requires: the HarmoniQ Booster for real-time power factor correction, the HarmoniQ Filter (HPF) for harmonic mitigation, and HarmoniQ Alpha as the integrated platform tying correction, filtering and voltage optimisation together. No switched-capacitor steps, no contactors, and no resonance risk with the harmonics already on your system.
Real-time true power factor correction to 0.98+ across the whole network — clearing the cos φ 0.85 threshold to remove the reactive-energy charge and cut contracted-capacity and apparent-power demand fees, and freeing transformer headroom so you can add load on a congested grid without the enlarged connection you cannot get.
Active harmonic filtering that holds distortion within EN 50160 and IEC 61000 limits — the component that matters most in the Netherlands’ exceptionally high-inverter environment, where ~24 GW of solar, plus drives, rectifiers and non-linear UPS, all push harmonic levels up.
Unifies correction, filtering and voltage optimisation across multiple boards or sites — stabilising voltage at the point of use for sensitive loads, and with the visibility to prove power factor, reactive energy and apparent-power demand at the meter, continuously.
Why not just install capacitor banks? + Read more− Close
Switched-capacitor banks correct power factor in fixed steps at the incoming feed — enough, in theory, to lift you over the cos φ 0.85 threshold at the meter. But they respond in steps and seconds, so they lag fast-changing loads; they sit only at the boundary, so reactive current still flows through your internal network; and on a system carrying harmonics — as nearly every modern Dutch site does, with its drives, rectifiers and the country’s vast solar base — a capacitor bank can form a resonant circuit with the supply, amplifying those harmonics.
HarmoniQ is solid-state and dynamic: it corrects continuously rather than in steps, works across the network rather than at one point, and carries no resonance risk. Paired with active filtering, it is power factor correction and harmonic mitigation designed for a plant full of drives and inverters, not the switchgear of forty years ago.
What It’s Worth
| Lever | What changes | Effect on the bill |
|---|---|---|
| Capacity release | ~10–20% of transformer / switchgear headroom freed | Add load, EV charging or new lines without an enlarged connection you cannot get |
| Power factor → 0.98+ | Reactive energy clears the cos φ 0.85 threshold; apparent-power demand falls | Reactive-energy charge removed; capacity & demand fees cut |
| Harmonic filtering to EN 50160 | Lower distortion, cooler transformers & cables, cleaner solar integration | Lower losses, longer asset life |
| Indicative annual value | A material recurring saving on a site of this size — plus the released capacity, which in a congested grid can be worth more than the savings | |
Every site’s loads, tariff and reactive profile are different, and the figures above are illustrative of the mechanism — not a quote. Our engineers will model the exact power factor improvement, reactive-energy and capacity charges avoided, losses recovered and capacity released for your specific connection — get in touch for a site assessment, or see the method on our power factor correction and demand-charge pages.