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SmartestEnergy Reviews, Prices & Tariffs

Find out more about EON Next and see the latest prices.

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Who Are SmartestEnergy?

SmartestEnergy has delivered energy products to the business community for over 20 years. They are a business energy dedicated supplier bringing 100% renewable energy with the vision of driving positive change. 

SmartestEnergy prides itself on helping businesses on their carbon natural journey. This strategy is driven forward by the leadership team, headed up by the SmartestEnergy CEO Robert Groves.

They rebranded in early 2023 to better represent their brand missions focusing on green energy.


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SmartestEnergy Tariffs 

SmartestEnergy has a range of tariffs available for SME businesses, with fixed-rate periods ranging up to 5 years. This allows UK businesses to make informed decisions on the best-matched tariff and secure unit rates in uncertain market conditions. 


Here are the available SmartestEnergy tariffs: 


SmartFix (fixes available up to 5 years)

  • - Fix unit prices for as long as you like
  • - Direct debit payment
  • - 100% renewable 


SmartTracker (3-years)

  • - 12 months at the lowest unit price, then reviewed each year
  • - Price match during the annual review
  • - Direct debit payment 


SmartPay (available up to 3-years)

  • - Fix pre-payment unit rates
  • - Flexible payment for unpredictable cash flow
  • - Online account management 


What Are The Cheapest SmartestEnergy Tariffs? 

Prices are accurate as of February 2024. 

Tariff Details (25,000 kWh annual usage)  Unit price per kWh Standing charge  Annual price 

Electricity 2-year fixed 




Gas 2-year fixed 




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  • Enter your details

    Our smart system finds your meter, estimated usage and supplier information from your postcode.

  • We'll show you the cheapest deals

    You will be able to view a 3 year, 2 year and 1 year fixed-rate tariffs and deals online with no obligation to switch.

  • Switch online or by phone

    Happy with what you find? If you decide to switch with us, we will handle the entire switch for you. 

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SmartestEnergy FAQs

  • SmartestEnergy Features

    SmartestEnergy has a variety of tariffs for small local coffee shops, right up to large commercial enterprises. They offer the latest smart meter technology when you switch to a SmartestEnergy tariff. 

    Features Service Offered
    Online Account Management  Yes
    Direct Debit Yes
    Smart Meters Yes
    Mobile App No
    Flexible Payment Options Yes
    Additional Services Web Analyser Service
    Green/ Renewable Energy Yes
    Trustpilot Review 3.9/5
    Optional Paper Billing No
  • What Is SmartestEnergys Fuel Mix?

    SmartestEnergy has a variety of fuel mixes for each available product. Here is their overall fuel mix for all products: 


    • - Wind - 37.25%
    • - Natural Gas - 21.33%
    • - Solar PV - 18.23%
    • - Hydro - 6.56%
    • - Renewable Sources - 3.54%
    • - Thermal - 3.38%
    • - Biomass - 3.30%
    • - Waste - 2.10%
    • - Coal - 2.03%
    • - Other non-renewables - 1.63%
    • - Nuclear - 0.49%
    • - Anaerobic digestion - 0.16%
  • SmartestEnergy Trustpilot Reviews

    SmartestEnergy scores 4 stars out of 5 on Trustpilot based on over 2,000 customer reviews.

  • How To Contact SmartestEnergy?

    You can make a lot of basic changes to your account via their account management portal. However, if you’re looking to contact them directly; there are a few ways you can get in touch: 


    • - SmartestEnergy Business Customer Service: +44 1903 703 400


    • - Large Consumption Customer Services: +44 1473 234151




    Business address: 

    The Columbus Building,

    7 Westferry Circus, 


    E14 4HD 

  • Can You Get a Smart Meter with EON Next?

    EON Next has installed over two million smart meters for its UK customer base. 

    To book your Smart Meter appointment call EON Next on 0808 501 5266.

    A few checks will be run at your home to make sure the smart meter installation can go ahead, such as making sure: 

    • There is easy access to the meters
    • Your gas supply is with EON Next
    • There is a good mobile signal at your home