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Smartest Energy prices, rates and reviews

The latest information and prices for Smartest Energy, one of the UK's biggest energy suppliers.

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The latest Smartest Energy business news. One of the UK's biggest business electricity suppliers.

Smartest Energy is a dedicated supplier for businesses across the UK. With a focus on 100% renewable business electricity, they have been a key supplier for many years. With a variety of tariff options for SMEs and more bespoke deals. They pride themselves on being a leading supplier to help any business start its carbon natural journey. 

Introduction to Smartest Energy 

Smartest Energy has been in the industry for over 20 years and has a long history of delivering competitively priced business electricity tariffs. The leadership team is led by their CEO, Robert Groves who has been with the supplier since incorporation in 2004. 

Smartest Energy Tariffs 

Smartest Energy has a range of business electricity tariffs to choose from, with fixes available from 1 to 5 years. 

Here are some of the Smartest Energy tariffs: 

  • Smart Fix (standard fix up to 5 years)
  • Smart Tracker (12-month fixed with annual review each year) 
  • Smart Pay (pre-payment) 

Smartest Energy Features 

  • Flexible payment options 
  • 100% renewable 
  • Typically competitive prices for both electricity and gas
  • Smart meters available 
  • Good Trustpilot reviews (3.9/5) 
  • Online account management 
  • Web analyser service 

Smartest Energy Downsides 

  • No paper billing 
  • No app 

Smartest Energy Prices per kWh  

Tariff Details (25,000 kWh annual usage) 

Unit price per kWh

Standing charge 

Annual price 

Electricity 2-year fixed 




Gas 2-year fixed 




Prices are accurate as of December 2023. 

Should I Switch To SmartestEnergy? 

Smartest Energy specialises in SME tariffs and is geared towards supporting renewable energy. With good reviews and competitive tariff prices; they are certainly worth considering. If you have any issues with Smartest Energy, they are pretty easy to get in touch with: 

  • SmartestEnergy Business Customer Service: +44 1903 703 400
  • Large Consumption Customer Services: +44 1473 234151
  • Email: [email protected]

The Columbus Building,
7 Westferry Circus, 
E14 4HD 

SmartestEnergy Fuel Mix

  • Wind - 37.25% 
  • Natural Gas - 21.33% 
  • Solar PV - 18.23% 
  • Hydro - 6.56% 
  • Renewables - 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% 

Compare Smartest Energy Prices with Business Electricity Prices 

With our free online comparison tool, it’s easy to get a Smartest Energy business quote.

Simply provide a few details about your company and within a matter of seconds, you’ll receive your free energy quote.