8. Opus Energy
Opus Energy supplies gas and electricity exclusively to companies. They provide to small, medium, and large businesses in the UK. Opus has won numerous awards for its excellent customer service and historically low prices. These include “Public Service Provider of the Year” at the British Small Business Awards and “Innovation in Business” at the Real IT Awards. Opus’ commercial energy products have gone green with 100% renewable electricity, and Opus combines every MWh that its business consumes with a renewable electricity certificate.
However, they have a mixed customer review rating on Trustpilot, with a 2.5/5-star rating based on over 1,000 customer reviews. Which is bad. Their business energy tariffs aren’t always transparent online, which raises a red flag. You’ll need to use EnergyBillKill or contact them directly for their best prices.
7. EDF Energy
EDF is the UK’s largest electricity supplier in terms of volume and operates several power plants. EDF is the largest low-carbon electricity producer in the UK. They have approximately 5.7 million customers and serve more than 200,000 businesses, from small companies to SMEs and large corporations. EDF has the particularity of offering low-carbon and renewable tariffs, with low-carbon tariffs for electricity of nuclear origin. It is the result of the most extensive network of nuclear power plants in the UK.
It is important to note, though, that EDF’s prices can be higher than the smaller suppliers, and their dependency on nuclear may justifiably put some people off.
6. British Gas
British Gas is perhaps the UK’s best known and most revered utility company. They serve more than 350,000 commercial customers and are among the top 6 energy providers representing almost 80% of the energy market.
Even more impressive is that British Gas dominated around 25.3% of the overseas gas market in July 2018. This makes them a powerhouse for commercial electricity and gas supply and leaves other large suppliers in the shadows.
5. Together Energy
Together Energy provides a cheap variable rate tariff and carries out swift switches.
Together, Energy’s cheapest floating-rate rate is one of the lowest on the market compared to the most affordable flat rate that comes with a £ 30 departure fee for fuel if you leave early. Providers make 99.6% of changes in 15 business days, and customers can manage their accounts online. Although the average wait time for calls is 26 seconds and the provider responds to approximately 85% of customer emails in two days, the company’s website lacks online inquiries and averages 225 complaints per 10,000 customers.
Together, Energy faces a relatively high volume of complaints and provides limited online advice.
Utility Warehouse carries out nearly all energy switches within 15 days and offers one of the cheapest tariffs. Utility Warehouse provides a quick response to almost all (97%) of its 4,444 customers, while 95% receive an accurate invoice at least once a year. The operator has one of the cheapest variable rates on the market. Still, their most affordable fixed rate is quite expensive, as the operator charges a departure fee of £ 40 for fuel if you leave early. They also offer information online to help customers understand their invoices and an app for those who want to manage their accounts on the go.
Quite importantly, they provides an expensive fixed tariff. Utility Warehouse will generally charge a cancellation fee for early abandonment and any outstanding service charges. This can be very expensive if you still have a multi-month contract. You must also give them a month in advance before they stop providing services and billing you.