ScottishPower
Compare ScottishPower energy tariffs with Switcheroo. 100% renewable electricity from the UK's first all-green major supplier. Find the best Scottish Power deal today.
The UK’s first major supplier to generate 100% of its electricity from renewables and a strong challenger on price.
Ofgem’s price cap for Q2 2025 is set at £1,849 a year for a typical dual-fuel household, still well above pre-2022 levels.
ScottishPower was the first major UK energy supplier to transition entirely to renewable electricity generation, operating large-scale wind farms across the UK and Spain. As part of the Iberdrola Group, it has the financial backing and infrastructure to compete hard on both green credentials and tariff pricing. It’s a compelling choice for households who want proven, large-scale renewable energy without paying a green premium.
| 3m+ Customers | 3.8★ Trustpilot | 100% Renewable Generation | Part of Iberdrola Group |
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About ScottishPower
ScottishPower is a Glasgow-based energy supplier owned by the Spanish energy giant Iberdrola, one of the world’s largest renewable energy companies. In the UK, ScottishPower operates wind farms across Scotland, England, and Wales, generating 100% of its electricity from renewable sources since 2016. It supplies domestic and business customers and has made net-zero operations a central part of its identity. Customer service ratings have historically been mixed but are improving.
ScottishPower Tariffs at a Glance (2026)
| Tariff | Type | Exit Fee | Best For |
|---|---|---|---|
| Standard Variable | Variable | None | No-commitment flexibility |
| Fixed Price 12m | Fixed | £50/fuel | Budget certainty |
| Fixed Price 24m | Fixed | £75/fuel | Long-term protection |
| Smart PAYG | PPM Smart | None | Prepayment meter customers |
Pros and Cons of ScottishPower
| ✔ Pros | ✘ Cons |
|---|---|
| 100% renewable electricity from own generation, not just certificates | Customer service ratings below Octopus and EDF |
| Part of Iberdrola, financially very strong | Less new tariff range than Octopus |
| Genuinely green from source, wind farms not certificate buys | No advanced smart tariffs equivalent to Agile or Intelligent Go |
| Competitive fixed tariff pricing | Limited smart home ecosystem |
| Energy Switch Guarantee member | Citizens Advice ranking mid-table among large suppliers |
ScottishPower’s Renewable Generation
ScottishPower generates 100% of its electricity from wind energy through its own UK and European wind farms. This is meaningfully different from suppliers whose green claims rest on buying REGO certificates after the fact. For households who want to support actual renewable generation rather than certificate trading, ScottishPower and Octopus are the two most credible large-supplier options. See our Compare Green Energy page for a full comparison of the green market.
How to Switch to ScottishPower
- Compare ScottishPower with every available tariff at your postcode on Switcheroo.
- Select fixed or variable, ScottishPower’s fixed deals.
- ScottishPower manages the switch from your current supplier.
- 14-day cooling-off period applies.
- Switch typically completes in 5 working days.
Scottish Power is one of the few big suppliers investing heavily in UK wind, which appeals if you want your money going somewhere greener.
- Worth comparing their current fixed deals against Octopus and OVO before committing
- Customers who prefer a big-brand supplier with UK call centres tend to rate them well
- Good smart meter rollout makes them a solid choice if you’re moving to a smart tariff
- Their tariffs tend to be mid-market on price, competitive but rarely the outright cheapest
- Scottish Power suits households that value genuine renewable generation rather than just green certificates
Is Scottish Power Right for You?
Scottish Power’s customer service performance has improved considerably over the past few years. Their Citizens Advice star rating, based on complaint rates, ease of switching, and accuracy of billing, has risen from below average to broadly mid-market. They operate call centres in the UK, including a significant operation in Glasgow, and offer online account management and a mobile app. As with most large suppliers, response times can vary by channel: social media and online chat tend to be faster than phone during peak periods. Smart meter installation wait times are typically 2-4 weeks for most postcode areas. Scottish Power is also one of the better performers on the Warm Home Discount, with relatively straightforward eligibility processes.
Scottish Power Customer Service and Support
Scottish Power operates across the full range of tariff types available in the UK market: standard variable, fixed-term, and smart tariffs. Their fixed deals are typically priced in line with or just above the Ofgem price cap, with terms available from 12 to 24 months. Scottish Power has been expanding its smart tariff offering, particularly for households with smart meters, solar panels, and EV chargers. The supplier was among the first big six to achieve 100% renewable electricity supply, with generation backed by their ownership of large onshore and offshore wind assets across the UK. This makes them a natural choice for environmentally-motivated switchers who want to buy from a supplier that actually generates renewable power rather than purely purchasing certificates.
Frequently Asked Questions
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Is ScottishPower available outside Scotland?
Yes, ScottishPower supplies customers across England, Wales, and Scotland. Despite the name, it operates as a national energy supplier. Coverage and tariff availability are the same across Great Britain.
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Is ScottishPower genuinely green?
ScottishPower generates 100% of its electricity from renewable sources through its own wind farms, making it one of the most credibly green major suppliers. Unlike suppliers relying solely on REGO certificates, ScottishPower’s green claim is backed by actual generation infrastructure. Compare all green energy tariffs on our Compare Green Energy page.
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How do ScottishPower's prices compare to Octopus?
ScottishPower and Octopus are broadly competitive on standard fixed deals. Octopus often has an edge on innovative smart tariffs. ScottishPower’s strength is its renewable generation credentials. Use Switcheroo to compare both side by side with your actual usage and postcode.
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What tariffs does ScottishPower offer for smart meter customers?
ScottishPower offers Smart PAYG for prepayment meter customers and has been expanding its smart tariff offering. For the widest range of smart tariffs, particularly for EV owners, also compare Octopus and EDF on our Compare Energy page.
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How do I make a complaint to ScottishPower?
Contact ScottishPower on 0800 027 0072 (Mon–Fri 8am–10pm, Sat 8am–6pm). Raise a formal complaint if your issue isn’t resolved. If unresolved after 8 weeks, escalate to the Energy Ombudsman. Citizens Advice (0808 223 1133) offers free independent help.
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Does ScottishPower offer business energy?
Yes. ScottishPower supplies business energy to SMEs and large commercial customers. Business tariffs are unregulated and typically fixed-term. See our Compare Business Energy page for guidance on finding the best commercial rate.
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Is ScottishPower a good choice for households with a prepayment meter?
ScottishPower offers Smart PAYG for prepayment customers. For a full comparison of PPM tariffs across all suppliers, visit our Pre-payment Meter Tariffs page. ScottishPower’s smart prepayment offering allows app-based top-up.
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Is Scottish Power a fully renewable energy company?
Scottish Power supplies 100% renewable electricity across all its tariffs, backed by generation from its own wind farms. It was the first of the big UK suppliers to make this transition. Their gas supply, like most suppliers, is conventional natural gas, fully renewable gas at scale isn’t yet commercially viable across the whole market. On electricity, however, buying from Scottish Power means your power is genuinely matched to renewable generation.