Energy companies advice guides

4 articles

Which? energy company reviews reveal the best and worst suppliers based on feedback from their customers, plus our expert verdict on their procedures, practices and pricing.

Best and worst energy companies

By Sarah Ingrams

Frustrated with your energy firm? Find out what thousands of energy customers think of their suppliers. Use our research to choose the best gas and electricity company for you.

Which? energy survey results How to choose the best energy company Energy companies: Which? Recommended Providers

27 January 2021

Small energy companies

By Sarah Ingrams

There are more than 50 energy companies, including a raft of small suppliers. We explain the pros and cons of choosing small gas and electricity companies.

Should I switch to a small energy company?Small energy companies A-M Small energy companies N-Z

3 February 2021

Northern Ireland electricity and gas

Find the best Northern Ireland electricity and gas energy firm for you, based on the opinions of hundreds of Northern Ireland electricity and gas customers.

Northern Ireland electricity and gas Airtricity Budget Energy Electric Ireland Firmus Energy Power NI

24 January 2021

Energy company reviews

By Which?

Avro Energy says it offers simplicity and aims to provide energy at the lowest prices. But is Avro the best energy company for you?

3 February 2021