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Smartest Energy Reviews, Prices & Tariffs 

Smartest Energy is a dedicated energy supplier focused on small business energy in the UK. 

With very competitive prices, they are quickly gaining popularity with business owners and pride themselves on energy affordability, sustainability and online account management. Here’s an in-depth review to help you understand what they are like as a supplier and if they are the right choice before you compare prices.

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Is Smartest Energy a Good Energy Supplier? 

Smartest Energy is rated a ‘Great’ supplier with a score of 4.0 out of 5.0 on Trustpilot. Customers typically praise the customer service and knowledge of the market. 

They offer a range of renewable business electricity and competitively priced business gas deals. Of course, in many cases this is subjective and each experience is unique, but Smartest Energy is a reliable supplier with great business energy deals. SmartestEnergy also offers competitive pricing through its tender offers for energy procurement. 

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Is Smartest Energy The Right Supplier For You?

We rate suppliers based on customers' most desired features including payment options, customer satisfaction, renewables and other factors. You can see this snapshot below. 

Features

Service Offered

Online Billing

Yes

Direct Debit

Yes 

Smart Meters

Yes 

Mobile App

Yes

Flexible Payments

Yes

Renewable Energy

Yes

Paper Billing

Yes

Priority Register

Yes (opt-in)
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Smartest Energy FAQs 

  • Who Owns Smartest Energy?

    Smartest Energy is owned by a Japanese company called the Marubeni Corporation. They have over 49,000 employees spread across 68 countries with their UK headquarters in London. 

    The Marubeni Corporation was founded in 1858 and officially became a UK-registered energy supplier in 2008 under the Smartest Energy brand after initial investment in 2001.

  • Smartest Energy Address

    SmartestEnergy Limited 
    The Columbus Building 
    7 Westferry Circus 
    London 
    E14 4HD

  • Contact Phone Numbers & Email

    Customer services: 01903 703 411

  • Green Performance

    Standard product mix 

    Wind - 58.2%
    Solar PV - 14.61%
    Hydro - 9.53%
    Thermal - 8.22%
    Waste - 4.98%
    Biomass - 4.08%
    Anaerobic Digestion - 0.38% 

    Total fuel mix across all products 

    Wind - 37.25%
    Natural Gas - 21.33%
    Hydro - 6.56%
    Renewables - 3.54%
    Thermal - 3.38%
    Biomass - 3.30%
    Waste - 2.10%
    Coal - 2.03%
    Other - 1.63%
    Nuclear - 0.49%
    Anaerobic Digestion - 0.16%  

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