EON Deemed Rates - Quick Summary

E.ON deemed rates are default energy prices charged when your business uses electricity or gas at a property without a formal contract. E.ON is the incumbent supplier for many commercial sites in the Midlands and parts of eastern England, inherited from the old East Midlands Electricity and Powergen customer base. There are no exit fees and no notice period, so you can switch to a fixed deal whenever you’re ready.

If you’re trying to work out whether your business is on E.ON deemed rates, it helps to know that E.ON operates two separate brands. E.ON Next handles domestic customers and some smaller commercial accounts. The original E.ON brand continues to serve larger commercial and industrial users. Your account will sit with one or the other, and each has its own website, login portal, and contact details.

Knowing which one you’re with is the first step. Check your most recent bill or letter. If it mentions E.ON Next with a separate website address, that’s where your account lives. If it just says E.ON with the traditional branding, you’re with the commercial arm. This matters when you want to check your tariff, query a bill, or start a switch, because each side manages its own customer accounts separately.

If you’re using energy at a commercial property without a signed contract, you’re on deemed rates whichever brand your account sits with. The rates are the same kind of expensive default pricing that applies across all suppliers when no formal agreement is in place.

How Businesses End Up on E.ON Deemed Rates

Moving into new premises is the most common trigger. E.ON is the legacy supplier for a large number of commercial properties, particularly in the East Midlands and East of England. That goes back to their acquisition of East Midlands Electricity and the Powergen customer base. If your business is in Nottingham, Leicester, Northampton, or anywhere in that belt, there’s a strong chance E.ON is the incumbent at your property. The previous tenant left, E.ON kept the supply running, and you became their deemed customer from day one.

A change in business structure can also land you on deemed rates. Going from sole trader to limited company, or changing the registered company name, can mean E.ON treats the supply as a brand new customer relationship. The old contract falls away and the new entity gets billed at deemed prices until someone arranges a proper agreement.

The third route is a contract gap. Your fixed deal expired and a new one wasn’t arranged in time. E.ON moved the supply onto their default pricing. Our deemed contracts guide explains the technical difference between deemed and out-of-contract rates and why it matters for what you’re being charged.

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What E.ON Deemed Rates Cost

E.ON publishes their deemed rate cards online, updated to reflect wholesale market movements. The numbers vary by region and meter type, so we’re not listing specific unit rates here. They’d be out of date within a quarter anyway.

What’s consistent is that the gap between E.ON’s deemed pricing and their fixed contract prices is wide. Both the unit rate and the standing charge are inflated compared to any negotiated deal.

One thing worth understanding with E.ON is how deemed rates are calculated depending on your meter type. If you’ve got a standard non-half-hourly meter, which covers most shops, offices, and small workshops, the deemed rate is based on regional averages. If you’ve got a half-hourly meter, which is more common for larger industrial sites, the deemed rate can include additional pass-through charges for things like capacity and reactive power. Those extra line items add up and aren’t always obvious on the bill.

Check your latest E.ON bill for the tariff name. If it says “deemed” or “standard variable”, you’re on default pricing. Compare your per-kWh rate and daily standing charge against what’s available on a fixed deal. That’s your starting point.

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How to Switch Off E.ON Deemed Rates

You’ll need your meter numbers. For electricity, that’s your MPAN. For gas, your MPRN. Both should be on your E.ON bill somewhere. If they’re not clear, or you haven’t received a bill yet, our MPAN and MPRN lookup guide explains where else to find them.

Before you call, check whether your account is with E.ON or E.ON Next so you reach the right team straight away. The logo and contact details on your most recent correspondence will tell you which one.

Once you know who to contact, you can either negotiate a fixed deal with E.ON directly or switch to a different supplier entirely. There’s no exit fee on deemed rates. No minimum term. No penalty for leaving.

The switch is administrative. No interruption to your supply. E.ON sends a final bill based on a closing meter reading, and the new supplier picks up from there. Most switches complete within five to ten working days. If you’d rather compare quotes from several suppliers at once, you can compare business energy prices through a broker.

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Key Takeaways

✓ E.ON deemed rates are the default prices charged when there’s no signed contract at your property

✓ E.ON operates two brands (E.ON and E.ON Next) with separate portals and contact details, so check which one your account sits with

✓ E.ON is the legacy supplier for many commercial properties in the East Midlands and eastern England

✓ Deemed pricing varies depending on whether you have a half-hourly or non-half-hourly meter

✓ You can switch at any time with no exit fees and no lock-in

✓ Find your MPAN and MPRN, confirm which E.ON brand manages your account, and the switch takes around five to ten working days

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