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Energy Comparison: Cheapest Energy Suppliers In The UK

April 16, 2025 •

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You’ve budgeted for tuition. You’ve sorted your rent. But have you factored in your monthly energy bill?

You’ll be using heating almost every day. Hot showers. Cooking. Charging every gadget you own. And all of that shows up in your monthly bill. You don’t want surprises at the end of the month. You want control. You want to know the cheapest energy suppliers in the UK and how to pick the right one before you move in.

This blog will help you find the cheapest energy supplier in the UK before the bills pile up. Because when you’re paying in pounds, every penny counts.

Cheapest Energy Suppliers in the UK: At a Glance

Here’s a quick look at popular suppliers and their estimated monthly charges, along with early exit fees — in case you change plans before the contract ends.

Energy Supplier	Estimated Monthly Cost	Early Exit Charges
Octopus Energy	£139 – £141	None
Tulo Energy	£139 – £145	None
Outfox The Market	£140 – £147	£0 to £140 (varies by plan)
ScottishPower	£140 – £147	None
British Gas	£140 – £147	£0 to £150 (varies by plan)
E.ON Next	£141 – £147	£0 to £200 (plan dependent)
EDF Energy	£141 – £147	£0 to £150 (based on plan)
Utility Warehouse	£142 – £147	£0 to £150 (plan dependent)
So Energy	£142 – £147	£0 to £150 (varies by contract)
Co-op Energy	£143 – £149	None

Top 10 Affordable Energy Suppliers in the UK

1. Octopus Energy:

If you’ve been wondering what is the cheapest energy supplier UK students can rely on, Octopus Energy is one name that keeps coming up—for all the right reasons.

Octopus Energy is a well-known energy supplier in the UK with a strong focus on renewable power. They’re popular not just for their prices, but also for their no-fuss service and quick support. For a student far from home, that matters.

Why It’s a Smart Pick for You?

No exit fees on major plans
Clear pricing, no hidden charges
Renewable energy as standard
Great customer reviews
Referral bonuses that can lower your bill even more

Tariff Options That Work for Students

Octopus 14M Fixed January 2025 v1

Type: Fixed, 14 months
Monthly Cost: ~£139
Exit Fee: £0
Fixed price means no surprises. Easy to plan your budget around.

Flexible Octopus

Type: Variable, no end date
Monthly Cost: ~£141
Exit Fee: £0
Flexible and still among the cheapest energy suppliers. Good if you don’t want to lock in.

Octopus Energy’s plans consistently show up in any list of the cheapest energy suppliers in the UK. For a student paying rent, tuition, and every other bill—this is one place you can actually cut back without cutting corners.

2. Tulo Energy:

Tulo is a smaller energy supplier that keeps things simple. They focus on affordable pricing and clear, no-fuss plans. No big promises. Just low rates that help you stay on budget.

Why It Could Work for You

Competitive monthly costs
No early exit fees on major plans
Easy-to-understand tariffs
Flexible pricing if you don’t want to commit

Tariff Options That Help You Save

Vari-One

Type: Variable, no end date
Monthly Cost: ~£139
Exit Fee: £0
It’s one of the cheapest energy suppliers for a flexible plan. Good for short stays or shared flats.

SVT

Type: Variable, no end date
Monthly Cost: ~£145
Exit Fee: £0
Slightly higher than Vari-One, but still affordable if you prefer staying with the same supplier.

If you’re asking what is the cheapest energy supplier UK students should consider, Tulo Energy is worth adding to your list. It’s a practical pick when you’re watching every expense and want full control over your contract.

3. Outfox The Market:

Outfox The Market offers some of the cheapest fixed-price energy supplier deals in the UK. Being a fixed-tariff specialist, they offer competitive prices for those who want predictable bills month after month. It’s a practical option when you’re planning ahead for the academic year.

Why It Could Work for You

Reliable fixed-rate deals
Options for 12, 18, and 24 months
Consistent pricing to help you budget
A known name among cheapest energy suppliers

Tariff Options That Balance Cost and Certainty

Fix’d Dual Jan25 v1.0

Type: Fixed, 12 months
Monthly Cost: ~£140
Exit Fee: £50
A solid pick if you’re staying for a year and want to avoid rate changes.

18-Month Fix’d Dual Jan25 v2.0

Type: Fixed, 18 months
Monthly Cost: ~£141
Exit Fee: £50
Gives you price certainty if your stay goes beyond a year.

2-Year Fix’d Dual Jan25 v1.0

Type: Fixed, 24 months
Monthly Cost: ~£142
Exit Fee: £140
A longer commitment with a modest rate. Best if you’ll be in the UK for two years.

Fox Standard Dual

Type: Variable, no end date
Monthly Cost: ~£147
Exit Fee: £0
Flexible plan with no commitment, but higher cost than their fixed tariffs.

Outfox The Market is a strong contender if you prefer fixed pricing and don’t mind a small exit fee. It gives you one less thing to worry about while managing student life abroad.

4. ScottishPower:

ScottishPower is part of the “Big Six” energy suppliers in the UK. With years of experience, they offer a variety of tariffs, including those designed to be affordable for students. While some students prefer smaller suppliers, ScottishPower’s large-scale support and familiarity can be reassuring.

Why Choose ScottishPower

Established, well-known supplier
Strong customer service network
Charitable tariff options (e.g., Help Beat Cancer)
Flexible variable tariffs without exit fees
Ideal for those who value brand trust and ease of access

Tariff Options That Fit Your Budget

Help Beat Cancer Flexi Jun 2026 TM3

Type: Variable, no end date
Monthly Cost: ~£140
Exit Fee: £0
A socially conscious option with competitive pricing. Supports cancer charities and offers flexibility.

Standard

Type: Variable, no end date
Monthly Cost: ~£147
Exit Fee: £0
A typical variable tariff, mid-range in price but still a reasonable option for students.

When looking for the cheapest energy supplier in the UK, ScottishPower stands out for its combination of affordability and reliability. Its long-standing presence in the market makes it a familiar option for many, and its tariff choices cater to a variety of needs.

5. British Gas:

British Gas could be your go-to supplier if you’re after a well-established name that offers a range of affordable tariffs. As the largest energy supplier in the UK, British Gas has built a strong reputation over the years. Part of the “Big Six,” British Gas is known for its reliable customer service and a variety of tariffs to suit different needs. British Gas offers a sense of familiarity and trust for those new to the UK or looking for ease of access.

Why Choose British Gas

Widely recognised for their customer support
Offers various tariffs to suit different budgets
Flexible options for students who want to control their energy costs
Established track record for reliability
Ideal if you prefer a larger supplier with broad support channels

Tariff Options That Won’t Break the Bank

Fixed Tariff v21

Type: Fixed, 12 months
Monthly Cost: ~£140
Exit Fee: £100
If you want to lock in your price for a year, one of the cheaper fixed tariffs with a 12-month term is ideal.

The Longer Fix v18

Type: Fixed, 24 months
Monthly Cost: ~£143
Exit Fee: £150
Slightly higher cost but gives you the price certainty for two years. Great for those who want to avoid price hikes.

Standard Variable

Type: Variable, no end date
Monthly Cost: ~£147
Exit Fee: £0
A flexible option with no exit fee. It’s mid-range but a solid choice if you value convenience.

British Gas is among the cheapest energy suppliers in the UK, offering competitive pricing without compromising on support. Whether you’re looking for a fixed or variable plan, they have options to match your budget. With their established name, you can trust them to keep your energy supply stable and hassle-free.

6. E.ON Next:

E.ON Next is a strong contender when considering the cheapest energy suppliers in the UK. Their focus on renewable energy makes them an attractive option, especially for students. E.ON Next is a major energy supplier in the UK, known for its commitment to green energy. They provide simple, straightforward customer service, ensuring a hassle-free experience. If you’re looking for a supplier with a strong sustainability initiative, E.ON Next might be the right choice for you. Its tariffs are competitive, making it one of the more affordable suppliers in the market.

Why Choose E.ON Next

Reliable and customer-focused service
Strong commitment to renewable energy
A variety of tariff options to suit different budgets
Flexible options for students who want predictable energy costs
Competitive pricing with a focus on environmental sustainability

Tariff Options That Suit Your Budget

Next Fixed 18m v15

Type: Fixed, 18 months
Monthly Cost: ~£141
Exit Fee: £100
One of their cheaper fixed tariffs. Offers a longer-term deal at an affordable rate.

Next Pledge Tracker 12m V7 (Variable)

Type: Variable, no end date
Monthly Cost: ~£143
Exit Fee: £0
A flexible option with no exit fee. Ideal for those who prefer not to be tied down.

Next Fixed 12m v42

Type: Fixed, 12 months
Monthly Cost: ~£143
Exit Fee: £100
Competitive pricing with a one-year fixed deal. A solid choice for short-term stability.

Next Gust 12m V16

Type: Fixed, 12 months
Monthly Cost: ~£145
Exit Fee: £100
Slightly higher than the previous options but still affordable for a one-year fix.

Next Fixed 24m V27

Type: Fixed, 24 months
Monthly Cost: ~£147
Exit Fee: £200
A longer-term fixed deal. Though slightly more expensive, it offers price certainty for two years.

E.ON Next stands out as one of the cheapest energy suppliers in the UK, especially if you’re keen on supporting renewable energy. If you’re looking to balance affordability with environmental responsibility, E.ON Next might be the supplier for you.

7. EDF Energy:

EDF Energy is another strong contender for the cheapest energy suppliers in the UK, offering competitive rates and a range of energy plans that can suit students. EDF Energy is part of the UK’s “Big Six” energy suppliers. EDF is an established name in the UK energy market because it invests in nuclear and renewable energy sources. They offer a variety of tariff options that cater to different needs, including students looking for cost-effective and environmentally friendly energy solutions.

Why Choose EDF Energy

Affordable fixed-rate options
Renewable energy focus, great for eco-conscious consumers
Multiple tariff choices to fit your needs
No exit fees on some plans
Flexible contract terms, ideal for students looking for both short and long-term plans

Tariff Options That Fit Your Budget

Simply Fixed 2Yr Jan27v4

Type: Fixed, 2 years
Monthly Cost: ~£141
Exit Fee: £150
One of the cheaper fixed-rate options for a longer-term contract, providing price certainty until 2027.

Simply Fixed Direct 1Yr Jan26v8

Type: Fixed, 1 year
Monthly Cost: ~£141
Exit Fee: £0
Ideal for those who prefer a one-year fixed plan with no exit fee. A great choice for students on a short-term stay.

Simply Fixed 1Yr Jan26v8

Type: Fixed, 1 year
Monthly Cost: ~£141
Exit Fee: £50
Another one-year fixed plan, slightly higher exit fee but still an affordable option for students.

Simply Tracker Mar26 (Variable)

Type: Variable, 12 months
Monthly Cost: ~£143
Exit Fee: £0
A flexible, variable plan with no exit fee. Perfect for those who want to change plans easily without penalties.

Standard (Variable)

Type: Variable
Monthly Cost: ~£147
Exit Fee: £0
A more traditional variable tariff, suitable for those who don’t mind fluctuations in their energy costs.

EDF Energy provides some of the cheapest energy suppliers options for students in the UK, especially with their fixed plans around £141/month. Their mix of fixed and variable plans ensures you can find an option that fits your budget and living situation.

8. Utility Warehouse:

Utility Warehouse offers a range of services beyond just energy, including broadband and mobile plans. This “one-stop-shop” approach makes it a strong contender for students who want to manage their utility bills more easily. It offers both fixed and variable tariffs, giving you flexibility in choosing a plan that works for your budget.

Why Choose Utility Warehouse

Convenience of bundled services like energy and other services like broadband
Affordable fixed-rate tariffs
No exit fees on most plans
Simple billing process

Tariff Options That Work for Students

UW Fixed 36

Type: Fixed, 36 months
Monthly Cost: ~£142
Exit Fee: £150
A competitive fixed-rate option, with price certainty until December 2025. It’s ideal if you prefer a longer-term deal.

Double Gold (Variable)

Type: Variable
Monthly Cost: ~£143
Exit Fee: £0
One of their more affordable variable options, with no exit fee. Perfect for students who may move or change plans in the future.

Gold (Variable)

Type: Variable
Monthly Cost: ~£145
Exit Fee: £0
A slightly higher-priced variable plan, but it offers flexibility with no exit fee. Ideal if you want to try UW without commitment.

Value (Variable)

Type: Variable
Monthly Cost: ~£147
Exit Fee: £0
A standard variable plan, good for those who are willing to deal with minor price fluctuations but with no exit fee.

Utility Warehouse is a solid choice if you’re looking for one of the cheapest energy suppliers in the UK. The ability to bundle your energy, broadband, and mobile services into one payment makes it even more appealing, especially for international students.

9. So Energy:

So Energy is an up-and-coming energy supplier known for offering straightforward pricing and a commitment to green energy. They focus on providing customers with clear, understandable bills while supporting renewable energy sources. If you’re environmentally conscious and looking for simple, hassle-free pricing, So Energy is a good choice for you.

Why Choose So Energy

Committed to providing 100% renewable electricity
Transparent pricing
Highly rated customer service
Simple tariffs

Tariff Options That Work for Students

So Wisteria Two Year – Green

Type: Fixed, 24 months
Monthly Cost: ~£142
Exit Fee: £150
This is a reasonably priced fixed deal, giving you the security of locked-in rates for 2 years.

So Wisteria One Year – Green

Type: Fixed, 12 months
Monthly Cost: ~£146
Exit Fee: £100
A solid option if you want the flexibility of a shorter-term contract but still want the benefits of green energy.

So Flex (Variable)

Type: Variable
Monthly Cost: ~£147
Exit Fee: £0
The flexible nature of this plan means you can switch plans without worrying about exit fees.

So Energy is one of the cheapest energy suppliers for students who value simplicity and green energy. Its tariffs are transparent, and its customer service is top-notch. The fixed 2-year plan offers affordability and security, while the flexible options allow you to make necessary changes.

10. Co-op Energy:

Co-op Energy is part of the well-known Co-op Group, which operates with a strong ethical foundation. They focus on offering transparent, fair pricing and eco-friendly energy options. With a strong community ethos, Co-op Energy also gives back to local causes and charities, making it a great choice if you want to support socially responsible businesses while saving money.

Why Choose Co-op Energy

Ethical and transparent pricing
Supports local initiatives
Offers fixed deals
No exit fees

Tariff Options That Make Sense for Students

Co-op 14M Fixed January 2025 v1

Type: Fixed, 14 months
Monthly Cost: ~£143
Exit Fee: None
A fair fixed deal at a reasonable price, offering stability and predictability for 14 months.

Co-op Community Power 14M Fixed January 2025 v1

Type: Fixed, 14 months
Monthly Cost: ~£149
Exit Fee: None
This tariff is slightly more expensive but supports Co-op’s community initiatives.

Co-op Energy is one of the cheapest energy suppliers for students looking for an affordable yet ethical choice. Its competitive prices and commitment to green energy make it an appealing option for those conscious of their environmental impact. The fixed tariffs offer simplicity and stability, while the lack of exit fees gives you flexibility if your circumstances change.

Also Read: Utility Bills In The UK: A Complete List With Examples

How To Choose The Cheapest Energy Supplier In The UK?

Review your current supplier’s tariffs and plans to see if you’re already getting a competitive deal.
Use trusted comparison websites to compare various energy suppliers. These platforms can help you find the cheapest energy suppliers in the UK based on your usage.
Take a look at your electricity and gas bills. Understanding your average consumption can help you choose the best tariff.
Not all tariffs are the same. Some may offer fixed prices, while others have variable rates. Compare these to find the most cost-effective option.
Check with your supplier or government for student-specific offers. Some suppliers offer lower rates for students. If you live in a student apartment, check if bills are included in your rent.
Consider whether you prefer paying monthly or using a pay-as-you-go option. Some payment methods may have cheaper tariffs.
Switching suppliers is easy, but make sure to weigh all your options. Check for exit fees, customer service ratings, and the reputation of the energy supplier.

How To Switch To The Cheapest Energy Supplier In The UK?

Information to Gather Before Switching

Postcode: Your postcode helps determine available suppliers in your area.
Current Energy Supplier and Contract: Know the name of your current supplier and your existing plan.
Tariff Name: Be sure to know the exact tariff you’re on with your current supplier.
Energy Usage: Check your bill to see how much energy you use annually. It is usually listed in kilowatt-hours (kWh).
Price per Unit: Find out how much you pay per unit of energy.

Steps to Switch Your Energy Supplier

Use Comparison Sites: Search for comparison websites to find the best deals.
Enter Your Postcode: This helps you compare energy prices and services from suppliers in your area.
Compare Prices and Services: Review the available deals based on price, customer service, and contract length
Choose the Best Supplier: Based on your needs, select the most suitable supplier, whether you want the lowest price or eco-friendly options.
Register with the New Supplier: Create an account with your chosen supplier and provide your personal details.
Follow the Process: To switch, complete the steps on the supplier’s website. The process is usually straightforward and requires little effort.

When to Switch Energy Suppliers?

When Prices Increase: If your current supplier hikes their prices, it’s time to compare and switch to a more affordable deal.
End of Fixed Tariff: If your fixed tariff contract is expiring, make sure you don’t end up on a costly standard variable tariff.
Life Changes: Moving, working from home, or other significant life events may mean your current supplier is no longer the best choice.
Before Winter: October is a good time to switch, as you’ll need more gas and electricity for heating and lighting.
When Exit Fees Are Avoidable: You can switch without penalties if you’re within 49 days of your contract ending. This is the perfect time to shop around for the cheapest energy suppliers.

Sorting bills on top of studies can get overwhelming. That’s why it helps to compare the cheapest energy suppliers in the UK early on. Or better yet, leave it to UniAcco to find student accommodation in the UK a breeze. Many of our student homes have bills included, so you don’t need to stress. Whether it’s student accommodation in London with all the perks or affordable student housing in Birmingham, we’ll help you settle in.

Also Read: Student Tenancy Agreement In The UK: Essentials To Know

FAQs

1. What is the cheapest energy supplier UK students can consider in 2025?

If you’re wondering what is the cheapest energy supplier UK residents are choosing in 2025, Octopus Energy consistently tops the list.

2. What should I look for when choosing an energy supplier in the UK?

Choosing the right supplier goes beyond just looking for the cheapest energy supplier in the UK. Here’s what to keep in mind:

Tariff costs
Contract Details
Customer Service
Renewable energy options.
Extra Benefits like smart meters, mobile apps, or referral perks

3. How long does it take to switch to a new energy supplier in the UK?

Switching is quicker than you think. Once you’ve picked a new supplier, the switch usually takes five working days. There’s no disruption to your energy supply, and you’ll get a confirmation from your new provider.

4. How can I cut down on my energy bills while studying in the UK?

Opt for energy-efficient bulbs and appliances
Keep heating costs down with good insulation
Install or ask for a smart thermostat
Track usage with a smart meter to avoid surprises
Service your boiler regularly

Thank you for reading this blog on ‘Weigh In The Cheapest Energy Suppliers In The UK!’ If you’d like to read more, here are some blogs that may be of interest to you –

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