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Npower Business

Npower Business Solutions, a subsidiary of E.ON UK, is a key player in the business energy market. Npower exclusively supplies energy to larger businesses and currently powers more larger business meters than any other UK supplier. Read on to see whether Npower Business Solutions could be the right choice for you.

Samir Kadri
Mike Rowe
Written by Samir Kadri
Edited by Mike Rowe
10 November 2025
6 mins read

Who is npower?

One of the original ‘Big Six’ energy companies that emerged in the early noughties, Npower was founded after Innogy plc took over the domestic operations of former supplier, National Power, in October 2000. German multinational, RWE AG, acquired Innogy in March 2002 and coined the business RWE Npower – the first instance of the ‘Npower’ branding.

Throughout the early 2000s, npower expanded its customer base and diversified its services, offering not only electricity and gas but also renewable energy solutions and energy efficiency services. They have worked with over 20,000 businesses across different sectors, equipping them with a comprehensive understanding of the energy marketplaces’ nuances over the last twenty years.

In 2019, Npower was acquired by E.ON UK, in a move that shook up energy markets across the country. Npower’s domestic customers moved under E.ON’s newly created subsidiary, E.ON Next. Npower Business Solutions was kept on by E.ON to serve both companies’ existing larger business clientele and provide gas, electricity and other energy solutions to any large businesses that sign on.

A leading player in the business energy market, Npower Business Solutions possesses the experience and expertise to help large businesses navigate tricky energy markets and build towards their sustainable goals.

What tariffs do Npower offer?

Npower Business Solutions offers a number of tariffs for larger businesses including fixed-term contracts, flexible contracts and specialist options for energy-intensive companies. At the time of writing, these are as follows:

Fixed-term contracts

Npower’s fixed range provides large businesses with electricity and gas that can be secured at a pre-agreed rate for up to five years. All contracts come with renewable electricity or carbon-offsetting options.

However, there are some key differences between the different fixed-term contracts on offer. These are explored below:

Fixed Certainty contracts

Npower Business Solutions’ standard fixed-term contract aimed at businesses who require a predictable set price for their fuel. Businesses can take out a gas contract, electricity contract, or a contract for both utilities.

Commodity costs, network charges and environmental levies are all fixed for the duration of the contract. Unlike their other offerings, the ‘Fixed Certainty’ contract comes with a mid-term review of electricity pricing too.

Fixed Commodity contracts

‘Fixed Commodity’ contracts offer customers more flexibility than fixed certainty contracts, as your non-commodity charges – such as network charges and environmental levies - are not fixed from the outset.

This means the charges Npower incur for these will pass through to you based on the actual charges they incur. This enables you to make savings on these charges if their price drops during your term. If their price increases, however, you will have to pay a premium.

Like all Npower Business Solutions’ fixed-term contracts, commodity costs are fixed from the outset.

Fixed Choice contracts

Npower’s ‘Fixed Choice’ contracts allow customers to fix their gas/electricity costs and network charges, and choose which of their other non-commodity costs, such as environmental charges, they want to fix or pay the market rate for.

Customers can liaise with a dedicated account manager to work out the best way of paying their non-commodity charges for the duration of their contract.

MultiPurchase contracts

Npower’s flexible, fixed-term contracts allow businesses to split their contract volume into multiple purchases.

Businesses can fix their energy prices at points throughout their contract term. If done savvily, they can take advantage of price falls, and limit the downside of market fluctuations.

Variable rates

Npower’s variable tariffs can fluctuate depending on the wholesale unit price of energy. In some cases, you can benefit from a reduced energy rate, but generally these will be more expensive than fixed-term contracts. For example, if energy prices rise, your tariff rate will soar.

You have greater flexibility on a variable rate and can switch supplier or enter into a new fixed-term deal at any time.

Deemed Rates

If your business is on a site which has power supplied by Npower, but you do not have a contract with them, you will pay deemed rates.

These are typically far costlier than contract rates and customers ought to get in touch with Npower as soon as possible about their situation. You can use our switching tool to compare quotes from all business energy suppliers on the market in seconds.

What other services does Npower provide?

In addition to their range of energy tariffs, Npower offers large businesses a range of other services including:

  • Automated meter reading (AMR)

  • Bespoke EV charging solutions

  • Online energy management tools

  • Purchasing options for businesses that generate their own electricity

  • Advice on how to adopt renewable technologies

Npower can install, upgrade, and maintain your business’ metering equipment. New meters can be installed within 10 working days, or even less if you use their ‘Power on in 5’ service.

Npower Fuel Mix

Npower’s fuel mix depends on what product you purchase. They offer business renewable contracts with 100% renewable energy sources, but these are specialized contracts separate to their standard offering.

Npower’s standard fuel mix for 1 April 2024 to 31 March 2025 is as follows:

Fuel

Percentage

Coal

9.7%

Natural Gas

49.0%

Nuclear

2.6%

Renewable

34.6%

Other

4.1%

Carbon Dioxide emissions

315 g/kWh

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How to cancel Npower Business Energy

There is no cooling-off period with business energy contracts, meaning that once you’ve signed the contract, you are obligated to fulfil the entire length of the contract. If you choose to cancel your contract before your term has ended, you will likely have to pay an exit fee.

If you are uncertain about exit fees, we can help you decide whether it’s worth switching supplier, even with a penalty fee. Compare tariffs and see if you can save money today.

If you are switching supplier at the end of a fixed-term contract, you must give Npower Business Solutions 30 days or more notice.

How to contact Npower Business

 You can contact Npower Business Solutions in various ways. These are listed below:

  • Phone – 0800 138 2322

  • Online – Using their online form which can be accessed here

  • Address: npower Business Solutions, 2 Prince's Way, Solihull, B91 3ES