For UK businesses, an energy contract should not be something you remember only when the final bill arrives. Knowing your energy contract end date, understanding your supplier’s deemed contract terms and out-of-contract rates, and starting the review process early can give you more time to compare options and avoid being moved onto less favourable rates.
So, when should you start your business energy renewal?
For most businesses, it makes sense to start reviewing your current contract between 6-12 months before it ends. The exact timing depends on your contract terms, supplier, and business size.
Here’s what UK businesses need to know.
What is the energy renewal window?
The energy renewal window is the period during which you can usually arrange your next contract or notify your existing supplier that you intend to switch.
For fixed-rate business contracts, this window generally opens 12 months before the end of the contract. The exact timing depends on your supplier and contract terms.
Don’t assume that your previous contract and current contract have identical terms. Your current agreement should always be the starting point.
Why does the timing of your renewal matter?
Waiting until your contract has already ended can create unnecessary complications.
Depending on the terms of your existing agreement, you could be moved onto an out-of-contract rates or deemed contract. For businesses with significant energy consumption, even a relatively small difference in unit rates can affect operating costs.
There is also another issue: rushing your decision can make it harder to properly compare contracts.
Instead of asking: “What is the cheapest tariff available today?,” you should consider the wider picture:
- What are the unit rates?
- What is the standing charge?
- How long is the contract?
- Are there additional fees?
- What happens when the contract ends?
- Does the contract suit your expected energy consumption?
Understand the contract type, length, fees, protections and what happens when the contract ends before agreeing to a business energy contract.
What should you check before renewing?
Your renewal should start with your existing contract, not a new quote.
1. Check your contract end date
Find the exact date your current agreement finishes. Don’t rely on memory or an old email. Check your latest bill that will mention your contract end date, contract documentation or contact your supplier.
2. Understand what happens after expiry
This is one of the most important parts of the renewal process. Some contracts may automatically renew, while others may move you onto out-of-contract or deemed rates.
Fixed-rate, variable-rate, deemed, out-of-contract, rollover/evergreen and flexible contracts are different types of business energy arrangements. Make sure you know exactly what happens if you take no action.
3. Look at your actual consumption
Don’t assess a new contract using price alone. Look at your recent electricity and gas consumption and consider whether anything has changed.
For example:
- Has your workforce increased?
- Have you opened or closed sites?
- Has your operating schedule changed?
- Have you installed new equipment?
- Are you planning an expansion?
- Has your energy efficiency improved?
Your future requirements may be different from your previous contract period.
4. Compare the full cost
A lower unit rate doesn’t automatically mean a lower overall cost. Look at the complete commercial picture, including standing charges, contract length, and other applicable terms.
It’s recommended to check whether a broker or price comparison service receives commission and whether it compares the whole market or only a selection of suppliers.
Does every UK business have the same renewal rules?
No. The protections and arrangements can differ depending on the size and energy consumption of the business. This is why businesses shouldn’t assume that advice intended for domestic energy customers automatically applies to them. Business energy contracts operate differently from standard household energy contracts.
What if your contract has already expired?
If your contract has already ended, don’t ignore it. Depending on the terms of your agreement, you could be paying an out-of-contract or deemed rate. Check your current position with your supplier and review your options as soon as possible.
If you’re already approaching or beyond your energy contract end date, a supplier or energy broker can explain the available arrangements and any switching requirements.
Can you renew with your existing supplier?
Yes. You don’t necessarily have to change suppliers. When your renewal period arrives, compare the offer from your current supplier with other available options.
The important thing is to make the decision based on your business requirements rather than automatically accepting a renewal.
A simple business energy renewal checklist
Before signing a new contract, make sure you have:
- Confirmed your energy contract end date
- Reviewed your recent electricity and gas consumption
- Checked what happens when the existing contract expires
- Compared unit rates and standing charges
- Checked contract length and terms
- Looked for exit fees or additional charges
- Considered your expected future energy requirements
- Compared your existing supplier’s offer with alternatives
- Confirmed the new contract before the current one ends
Don’t wait for the final bill
A successful renewal starts well before your current contract expires.
By identifying your business energy renewal window early, checking your contract terms and comparing your options, you can make a more informed decision instead of rushing when the deadline arrives.
At GGS Utilities, we help businesses review their utility requirements and explore suitable energy options. If your contract is approaching its renewal period, get in touch with GGS Utilities to discuss your requirements and your next steps.
Energy contracts and supplier terms vary. Always check your specific contract and current supplier requirements before switching or renewing.
Frequently Asked Questions
1. How far in advance should I renew my business energy contract?
Start reviewing your options anywhere between 6-9 months before your current contract ends. The exact switching or renewal period depends on your supplier and contract, so check the agreement rather than relying on a standard timeframe.
2. What happens if I miss my business energy renewal window?
The outcome depends on your contract. You could potentially be moved onto an out-of-contract or deemed arrangement. Check your agreement carefully.
3. Can I switch before my business energy contract ends?
Fixed-term contracts generally restrict switching before the end of the term, although your contract may include a termination clause or exit fee. Check your specific terms before making a decision.
4. Should I renew with my current supplier?
There isn’t a universal answer. Compare your existing supplier’s renewal offer with other available options and consider the full contract terms, not just the headline rate.