Your renewal letter, checked line by line.

Before you sign, send us the letter. We’ll go through the unit rate, the standing charge, the term and the reply date, and tell you which lines to query.

Out of contract? Your bill, checked line by line.

When a fixed contract ends with nothing new agreed, suppliers move you onto their out-of-contract prices. Send us your latest bill and we’ll show you what you’re paying, and what a fixed price would cost.

On deemed rates? Your bill, checked line by line.

If you moved in or took over a business and never signed a contract, you’re probably on deemed rates. Send us your latest bill and we’ll show you what you’re paying, and what a fixed price would cost.

Send us your letter

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Contract renewal

HV half-hourly electricity

From the supplier to a manufacturer in Oxfordshire. Offered 28 October 2026, 2 years from 5 November 2026.

From a real renewal, anonymised. Change the standing charges and term to match your letter.

Item	Offered	Our note
Day rate 07:00 to 00:00	27.39p	2.60p per kWh above what we could get. We quoted 24.79p.
Night rate 00:00 to 07:00	23.66p	2.22p per kWh above what we could get. We quoted 21.44p.
Standing charge £ per day	was £	Checked. £9 to £49 looks alarming, but it’s where the market now is for this kind of meter; we couldn’t beat it. The saving was in the unit rates.
Pass-through chargesSet by the network operator and the government, not the supplier, so they’re the same whoever supplies you.
Capacity charge on 40 kVA	9.26p/kVA/day	£1,352 a year. Same on our quote.
Nuclear RAB	0.45p/kWh	£671 a year. Same on our quote.
Term		We quoted the same term, so the two are like for like.
Broker commission shown	0.0p	Our fee is 1.5p per kWh, already in the rates we quoted.
Sign by	4:30pm, same day	Sign nothing yet. If your current contract needs written notice to end, send it today; it commits you to nothing.
Signing terms	Binding offer	Your signature is the offer. The supplier accepts by email and doesn’t need to sign.

Standing charge over a year

Before

£3,285

Offered

£17,841

Difference per year: £14,556
Over 2 years: £29,112

Fair for an HV half-hourly site: we couldn’t beat it. It’s still the line most people skip, so we always check it.

What happened

Figures from a real check, anonymised

Offered. A manufacturer in Oxfordshire was sent a 2-year electricity renewal on 28 October 2026, with “sign by 4:30 today” in the covering email.
Checked line by line. The standing charge had gone from £9 to £48.88 a day, but that’s the market for an HV half-hourly site. The unit rates were 2.60p and 2.22p per kWh too high.
Outcome. We quoted 24.79p day and 21.44p night on the same term, in 2 working days, with no deadline missed. About £3,000 a year less, about £6,000 over the two years. Our fee is 1.5p per kWh, already in the rates we quoted.

How we worked out £3,000 a year

149,000 kWh a year, 70% day and 30% night. Ex CCL and VAT.

	Their renewal	Our quote
Day, 104,300 kWh	£28,568	£25,856
Night, 44,700 kWh	£10,576	£9,584
Standing charge, 365 days	£17,841	£18,465
A year	£56,985	£53,905

£3,080 a year less, £6,160 over the 2 years. Our standing charge was £1.71 a day higher, and that £624 a year is already taken off. At 60/40 day and night it’s still £3,023 a year.

The capacity charge and Nuclear RAB are left out because they were the same on both.

Send us your letter

Read the small print on yours: on many proposals your signature is a binding offer and the supplier doesn’t need to sign. Once it’s gone, it’s gone.

Out of contract and deemed rates aren’t the same thing.

Out-of-contract rates: You had a fixed contract with this supplier. It ended and nothing new was agreed, so you’re still with them on their out-of-contract prices, usually higher than a fixed price, until you sign something new.
Deemed rates: You’ve never had a contract at this address: you moved in, or took over the business, and started using energy. The supplier bills you its deemed rates, usually the highest prices it charges.

Either way you’re not locked into a fixed term, so you can usually move onto a fixed price quickly. Send us the latest bill and we’ll tell you which one you’re on.