What power cut compensation can your business claim, and what does an hour of downtime really cost?

Power cut compensation for a business is a flat sum, paid only after a long unplanned cut. Real damage is paid only when the grid caused it, so most downtime costs stay with you. Our guide to emergency power supply for your business compares UPS, generator and battery, and business battery systems keep critical loads running.

The lights go out at 10:40 on a Tuesday. The machines stop halfway through a batch, the server goes dark and fifteen people stand waiting. The compensation is built for inconvenience, not for your loss: a planned or load-shedding cut pays nothing at all.

Can a business claim power cut compensation in Belgium?

Yes, for an unplanned cut that lasts long enough, at a flat rate fixed by law. Each region has its own rule, and none pays for force majeure.

How much compensation does Fluvius pay a business for a long power cut?

Fluvius pays a business 20% of the distribution costs of the month before the cut, with a minimum of 35 euro. The Flemish Energy Decree sets this for every grid user that is not a home. Every extra four hours adds half that amount, at least 20 euro.

With 900 euro of distribution costs a month, a cut of four to eight hours gives 180 euro, and eight to twelve hours 270 euro. The amount follows your network bill, not your lost production.

According to Fluvius, a cut announced at least five days ahead gives nothing. For those, read how to keep your business running during a planned power interruption. Apply online, by phone or at a Fluvius customer office; Fluvius confirms within 10 working days and pays within 60.

What do ORES, RESA and Sibelga pay after a power cut?

In Wallonia a business gets 100 euro (indexed) for every six hours of unplanned cut. The Walloon electricity decree sets it, and according to ORES and the CWaPE you do not have to ask.

The cut must not come from your own installation. ORES lists storms, fallen trees and cables hit by a third party as force majeure, which the decree does not compensate. In Brussels you send the Sibelga form by mail, fax or registered letter, according to Brugel.

Can you claim the real damage: broken machines, spoiled stock, lost production?

Only when the damage comes from a problem on the grid, and even then within limits. According to Fluvius, a device in good order should not fail because the power stops, just as when you pull the plug.

Fluvius pays damage from its own fault, such as overvoltage on the distribution grid or damage during works. The Flemish Energy Decree caps it at 2,000,000 euro per incident for all victims together. A higher total reduces every claim in proportion, except injury to people.

Wallonia pays direct material damage from an interruption or poor supply quality, such as a freezer that lost its contents (a CWaPE example). You are paid on purchase invoices, with a 100 euro excess and a 2,000,000 euro cap per event. Both fall away after a serious mistake by the grid operator.

Force majeure and planned cuts are excluded there. Declare by registered letter within 90 calendar days, never later than six months after. The rules speak of direct damage: lost sales, idle staff and a missed delivery are much harder to claim.

Does your insurance pay for a power cut at your company?

Sometimes, mostly when the cut damages goods you insured. According to AXA Belgium, a fire policy usually covers the loss of cold in stored goods. That applies after an insured event, or an unplanned grid cut longer than a minimum time in your contract.

Business interruption insurance (lost income while you cannot work) has its own trigger. The AXA sheet for small businesses pays after a claim on the building or contents under your fire policy, after a waiting period. A grid cut that damages nothing of yours usually falls outside it.

So ask your broker: does my policy pay for a public-grid cut, after how many hours, and without material damage?

What does an hour of downtime really cost your business?

Add up what you lose per hour, not what you pay for electricity. The real cost of a power outage per hour is lost margin, idle wages and scrap, such as a batch or dough lost halfway. Add the restart of machines, ovens, cold rooms and IT, plus broken equipment or a contract penalty.

In our illustrative example, a workshop has 15 people at 40 euro wage cost per hour and loses 700 euro of margin per hour. A four-hour cut costs it about 8,000 euro.

A Dutch study for the regulator ACM (2022) asked businesses what avoiding a cut is worth. Answers ran from about 20,000 euro per MWh not delivered for industrial SMEs to about 106,000 euro for transport. Every kWh your site did not get cost 20 euro or more: at 100 kW, at least 2,000 euro per hour.

The Federal Planning Bureau (2004) put one national hour without power on a working day at 66 million euro of lost value added. No flat sum comes close.

When does back-up power cost less than the downtime it prevents?

When the cuts you expect cost more per year than the back-up. Multiply your cost per hour by the hours of cut you expect, and add one bad cut at the worst moment.

A UPS covers minutes, enough to shut servers down cleanly. A battery with island function (running without the grid) takes over in milliseconds: under 20 for a Victron MultiPlus-II, according to Victron. A generator runs as long as it has fuel, but needs a few seconds to start.

A battery also works every day. In a Victron system the energy management (ESS) keeps a minimum state of charge that is only used when the grid fails. Above it, the battery cuts your peak and stores solar power, as our article on peak shaving with a battery explains.

In Maasmechelen our semi off-grid system of 24 kVA and 30.8 kWh made an emergency generator useful every day. The site now charges its system from the street grid or the generator. Our media section also shows a back-up system for an airport control tower.

For cold rooms, read how long a battery keeps a cold room cold. For livestock, see keeping barn ventilation running in a power cut; for servers, which inverter or UPS a business needs. Worried about load-shedding? See what a company should do about a blackout in Belgium.