ScottishPower vs EDF Energy: Which Supplier Is Better?

Trying to decide between ScottishPower and EDF Energy? Both suppliers offer gas and electricity across the UK, but they differ in tariffs, EV charging, renewable energy and customer service.

This comparison explains the key differences to help you choose the right supplier for your home.

Quick Comparison: ScottishPower vs EDF Energy

If you’re short on time, the table below highlights the key differences between ScottishPower and EDF Energy, including pricing, tariffs, EV charging, customer service and renewable energy.

9 key feature about Scottish Power VS EDF Energy

Before comparing the two suppliers in detail, let’s look at the nine key features that matter most when choosing between ScottishPower and EDF Energy, including pricing, tariffs, customer service, EV charging and renewable energy.

1  Pricing

ScottishPower’s standard variable tariff moves with the Ofgem price cap. Its current tariff range also includes a Cap Tracker product.

The exact saving, contract end date and exit fee depend on the tariff available for the customer’s postcode. ScottishPower explains that some of its tariffs have exit fees while others do not, so customers should check the tariff information label before switching. EDF Energy Pricing

EDF’s Standard Variable tariff also follows the Ofgem price cap. Its tracker tariffs aim to remain below its Standard Variable tariff by providing a discount through the standing charge.

EDF also offers fixed products whose prices remain unchanged for the agreed contract period. Precise savings, exit conditions and contract lengths depend on the live tariff available to the customer. Pricing Verdict

On standard variable tariffs, there is unlikely to be a major difference because both suppliers follow the same regulatory cap. The meaningful comparison is between the tracker or fixed deals available at the customer’s address.

• Best for flexibility: A tariff with no exit fee or a short commitment.
• Best for predictable budgeting: A competitive fixed tariff.
• Most important comparison: Total estimated annual cost, including standing charges.
• Before switching: Check exit fees on both the current and new tariff.

2. Fixed Tariff Options

A fixed tariff locks the unit rate and usually the standing charge for a stated period. It can make budgeting easier, but it does not make the total energy bill completely fixed. Customers who use more gas or electricity will still pay more.

Both ScottishPower and EDF offer fixed plans alongside their standard and tracker tariffs. EDF generally provides a broader mix of standard, smart and technology-specific options, while ScottishPower’s domestic range is more straightforward.

Exact product names, contract lengths and exit fees change regularly. Customers should therefore compare current tariff information rather than rely on old fixed-deal names.

• EDF Energy is generally better for: Customers wanting more tariff variety.
• ScottishPower may be better for: Customers receiving a cheaper personalised fixed quote.
• Before fixing: Compare the deal with the current £1,862 price-cap illustration.
• Important: A fixed tariff can become less competitive if market prices later fall.

3. Smart Tariff Choice

Smart tariffs charge different electricity prices according to when energy is used or which technology is connected. They usually require a working smart meter that can provide half-hourly readings.

ScottishPower’s smart-tariff range is primarily focused on electric vehicles through EV Saver and EV Optimise.

EDF offers smart time-of-use tariffs for EV owners, heat-pump users, solar homes, battery owners and households able to move consumption outside peak periods.

Its range includes EV tariffs, heat-pump tariffs, solar products and FreePhase plans with several pricing periods during the day. EDF states that customers usually need a working smart meter, half-hourly readings and Direct Debit to access its time-of-use tariffs. Smart Tariff Verdict

EDF is the stronger option for smart-home flexibility because its tariff range covers more technologies and household usage patterns.

• Choose EDF Energy for: EVs, heat pumps, solar panels, batteries or flexible time-of-use pricing.
• Choose ScottishPower for: A simpler EV-focused tariff.
• Smart tariffs work best when: A meaningful amount of electricity use can be moved to cheaper hours.
• They may offer less value when: Most electricity is used during expensive peak periods.

4. EV Charging Support

ScottishPower’s EV Saver tariff offers electricity at 8.5p per kWh between midnight and 5am, providing a five-hour cheaper charging window.

ScottishPower also says electricity used on this tariff is matched with 100% green electricity. Its EV Optimise service can charge compatible vehicles at 8p per kWh when charging is managed through the service, subject to eligibility and compatibility. ’s GoElectric tariff provides seven off-peak hours from 11pm to 6am at 6.99p per kWh. EDF also advertises a Pod Point Plug & Power option at 6.49p per kWh, bundled with an eligible home charger.

A smart-charging add-on may provide extra off-peak charging periods outside the standard overnight window, as well as an annual bill credit for eligible customers. EV Charging Verdict

EDF is stronger on both headline overnight pricing and off-peak duration. Its standard seven-hour period is longer than ScottishPower’s five-hour EV Saver window.

ScottishPower can still appeal to drivers who want a straightforward tariff associated with renewable generation.

• Cheapest listed off-peak rate: EDF’s eligible Pod Point tariff at 6.49p/kWh.
• Longer standard overnight window: EDF, from 11pm to 6am.
• Renewable-focused alternative: ScottishPower EV Saver.
• Important: Compare peak rates, standing charges, charger eligibility and exit fees—not only the overnight rate.

5. Renewable and Low-Carbon Energy

ScottishPower says its domestic green tariffs are backed by 100% green electricity produced by its wind farms.

From March 2026, ScottishPower also moved its small-business electricity supply to 100% renewable electricity as standard. Its parent group, Iberdrola, operates more than 3,200 MW of UK wind capacity across onshore and offshore projects. follows a different low-carbon model. It describes itself as Britain’s largest generator of zero-carbon electricity, with its nuclear fleet supplying around 12% of UK electricity demand during 2025.

EDF offers renewable and zero-carbon tariff options, but its main low-carbon identity is more heavily connected to nuclear electricity than ScottishPower’s wind-focused approach. Green Energy Verdict

ScottishPower is the clear winner for customers who specifically want renewable electricity. EDF is competitive for people whose priority is low-carbon electricity, regardless of whether it comes from renewable or nuclear generation.

• Best for renewable electricity: ScottishPower.
• Best for nuclear-backed zero-carbon electricity: EDF Energy.
• Key distinction: Renewable electricity and zero-carbon electricity are related, but they are not identical.
• ScottishPower’s main strength: Wind generation.
• EDF’s main strength: Nuclear generation.

6. Customer Support Experience

The latest Citizens Advice comparison covers January to March 2026.

ScottishPower scored 2.94 out of 5 and ranked 10th, while EDF Energy scored 2.90 out of 5 and ranked 11th.

ScottishPower performed better for contact waiting time, scoring 4.0 compared with EDF’s 3.2. EDF performed slightly better in the complaints and billing categories, although the difference in the two suppliers’ overall ratings was very small.

Citizens Advice is expected to publish the next three-month results in September 2026. ther company is currently among the strongest customer-service performers, and ScottishPower’s narrow lead is too small to be decisive.

• Overall Citizens Advice winner: ScottishPower, by 0.04 points.
• Better contact waiting-time score: ScottishPower.
• Better complaints and billing scores: EDF Energy, narrowly.
• Best approach: Check the newest independent rating immediately before switching.

7. Digital Account and Usage Tracking

ScottishPower’s mobile app supports bills, payments, meter readings, energy-use tracking and EV Optimise.

Its Energy Insights and My Energy Tracker tools help customers compare estimated and actual costs. Smart-meter customers can also access more detailed consumption information. ’s app and MyAccount cover payments, account balances, bills, meter readings and tariff information.

EDF’s Energy Hub allows smart-meter customers to view energy use in both kWh and pounds, follow changes over time and receive personalised energy-saving suggestions. Digital Experience Verdict

Both suppliers provide the essential self-service tools. However, EDF has a slight advantage because Energy Hub delivers more detailed and integrated usage information.

• Best for basic account management: Tie.
• Best for detailed usage analysis: EDF Energy.
• Best for ScottishPower EV customers: ScottishPower app with EV Optimise.

8. Business Energy Suitability

ScottishPower’s Renewable For Business tariff provides electricity backed by renewable generation for one, two or three years.

Businesses should note that the wholesale energy-cost portion is fixed, while certain industry-related costs remain variable and are reviewed quarterly. The product is therefore not necessarily a completely fixed, all-inclusive price. offers small-business fixed contracts for periods of one to four years, providing a longer maximum fixed term.

It also offers fixed and flexible purchasing products for larger users, along with renewable and zero-carbon electricity options. Business Energy Verdict

• Best for renewable-focused business electricity: ScottishPower.
• Best for a longer fixed term: EDF Energy.
• Best for larger or more complex users: EDF’s broader fixed and flexible options.
• Important: Check whether all charges are fixed or only the wholesale energy component.
• Before signing: Compare contract length, renewal terms, notice periods and termination charges.

9. Supplier Stability and Market Position

Ofgem reported that the six largest suppliers held 92% of the UK domestic energy market during the second quarter of 2025.

ScottishPower has been part of Iberdrola since 2007 and benefits from the group’s large renewable-generation and electricity-network operations.

EDF Energy belongs to the wider EDF Group and operates a major UK generation portfolio, particularly in nuclear electricity.

Both are established and well-backed suppliers, so there is no clear stability winner. 10. Best Fit by Customer Type

ScottishPower Is Better For:

• Customers who specifically want renewable electricity.
• Households attracted to wind-backed energy.
• EV drivers who value a straightforward green overnight tariff.
• Businesses seeking a renewable electricity contract.
• Customers receiving a competitive ScottishPower fixed or tracker quote.

EDF Energy Is Better For:

• Customers want broader fixed and smart-tariff choices.
• EV owners seeking a lower overnight rate and longer charging window.
• Homes with heat pumps, solar panels or battery storage.
• Customers who want detailed usage tracking through Energy Hub.
• Businesses want fixed contracts of up to four years.

Final Verdict: ScottishPower or EDF Energy?

Neither supplier is the best option for every customer. On standard variable pricing, ScottishPower and EDF Energy are closely matched because both follow Ofgem’s price cap.

The main differences appear in smart tariffs, EV charging, digital tools and the source of their low-carbon electricity.

ScottishPower is the better choice for customers who put renewable electricity first. Its wind-focused generation, renewable-backed tariffs and green business products give it a clear renewable identity.

EDF Energy is the stronger all-round choice for tariff variety and household electrification. Its lower listed EV rates, longer off-peak charging window, heat-pump tariffs, solar options and Energy Hub make it more suitable for customers managing multiple smart technologies. The final decision should use a live postcode quote and the household’s expected usage pattern. Cheap overnight prices offer value only when a meaningful share of consumption can be moved off peak. Fixed tariffs may improve budget certainty but can become poor value if market prices fall.

Overall Winners

• Best for renewable energy: ScottishPower.
• Best for smart tariffs: EDF Energy.
• Best for EV charging: EDF Energy.
• Best for digital tools: EDF Energy.
• Best for customer service: ScottishPower, narrowly, based on current Citizens Advice data.
• Best for business contract length: EDF Energy.
• Best overall: EDF Energy for features; ScottishPower for renewable-focused customers.

For more options, compare Octopus Energy vs OVO Energy, OVO Energy vs Ecotricity, and Octopus Energy vs Good Energy.

Frequently Asked Questions

Still have questions? Here are the answers to some of the most frequently asked questions about ScottishPower and EDF Energy to help you make an informed decision.