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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

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

Energy company reviews

Ampower is a relatively new energy firm, which says that friendly service and affordable energy set it apart. Find out what customers think of its service and pricing, plus whether it’s the best gas and electricity company for you.  

Small energy companies

There are more than 60 energy companies, including a raft of small suppliers. We explain the pros and cons of choosing small gas and electricity companies.

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.