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ScottishPower energy review

Our review of ScottishPower sets out its gas and electricity tariffs, green credentials and pros and cons.

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Finder score
Expert analysis
Generates energy for its green tariffs from its own wind farms
Poor customer service record

ScottishPower was established in 1900 in Glasgow. Today it is owned by Spanish energy firm Iberdrola and is one of the “Big Six” group of energy suppliers. ScottishPower is also one of the UK’s largest producers of wind energy and advocates for investing in renewable energy solutions.

Read on to find out more about ScottishPower, and whether it might be the right energy supplier for you.

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ScottishPower’s tariffs and service

Supplier nameScottishPower
Green tariffs
Fixed tariffs
Variable tariffs
Dual fuel deals
Manage online
Manage account via app
Manage account by telephone
Live chat support available
Email support available
Can install smart meters
Can offer Warm Home Discount
Percentage renewables (electricity)36%
More Info

Is ScottishPower green?

According to data collected from ScottishPower by the industry regulator Ofgem, the supplier buys or generates its energy from the following sources:

How do customers rate ScottishPower?

In 2020 ScottishPower was the most complained about provider out of the “Big Six”, according to data compiled by the charity Citizens Advice. An average of 58.7 complaints per 10,000 ScottishPower customers was escalated to a third party, including the Energy Ombudsman, a dispute resolution organisation recognised by the energy industry.

ScottishPower’s rating on the customer review site Trustpilot gives it 3.6 stars out of 5, based on over 29,700 customer reviews. The number of customers giving the supplier an “excellent” rating stands at 45% , while 29% of customers rated their experience with the supplier as either “poor” or “bad”.

Pros and cons of ScottishPower


  • Generates energy for its green tariffs from its own wind farms. While not all of its supply comes from renewable sources, ScottishPower generates its own renewable energy using its own wind energy infrastructure.
  • Installs smart meters. This allows customers to conveniently monitor their usage.


  • Poor customer service record. In recent years ScottishPower has languished at the bottom of a large number of customer service surveys, with customers reporting delays in engineer appointments and billing mistakes.
  • Rarely the cheapest option. Like most of the “Big Six”, ScottishPower will rarely be the cheapest option, regardless of the type of tariff you’re trying to find.

Our verdict: Is ScottishPower any good?

Sadly, ScottishPower is repeatedly rated as one of the worst major UK energy suppliers when it comes to customer service. Another big issue that many potential customers are likely to have with ScottishPower is its tariff prices. The firm is rarely, if ever, the cheapest option available whether you’re looking for a fixed deal or a “default” variable tariff. So if price is your main priority, ScottishPower may not be the supplier for you.

However, as one of the country’s largest wind energy producers, the supplier’s green tariffs may be of interest if you’re interested to source your energy from a known renewable source.

Frequently asked questions

Finder score

★★★★★ — Excellent
★★★★★ — Good
★★★★★ — Average
★★★★★ — Subpar
★★★★★ — Poor

Our experts analysed each provider's complaints handling record, how clear the bills are, and other key measures. More details in our full methodology.

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