Fast track to net-zero
We're empowering businesses to set meaningful net-zero targets, providing the products and tools needed to report zero carbon emissions.
Start your net-zero journey
SmartestEnergy
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Commercial and Industrial
Commercial and Industrial
Commercial and Industrial
Commercial and Industrial (C&I) businesses and energy consultants can explore our wide range of fixed and flexible contract structures here, with certified 100% renewable electricity available across all our products.
Commercial and Industrial
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Business
Business
Business
SmartestEnergy Business offer a range of competitive electricity and gas products to suit any small-medium UK business. Find out how we can help your business reduce your energy costs and protect you against market price uncertainty.
Business
SmartFix Renewable Product Guide
Learn more about taking the smartest journey to renewable energy, download our SmartFix renewable product guide.
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Generators
Generators
Generators
We offer independent generators a competitive route to market with our various Power Purchase Agreements (PPAs) suitable for renewable and flexible assets. Take advantage of our trading expertise spanning 20 years and find out how we can help you maximise your assets’ potential.
Generators
SmartFlex trading portal
Track the market, react to price spikes and trade at the click of a button with SmartFlex, available with our Flexible PPA product.
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About Us
About Us
About Us
SmartestEnergy is a B2B energy company empowering switched-on customers, generators and partners to get to net zero. See how our unique business model sets us apart from our competitors and why the support from our parent company, Marubeni Corporation makes us a stable, well-resourced partner.
About Us
Celebrating 20 years of SmartestEnergy
Having been established in 2001, SmartestEnergy celebrates 20 years of shaping the global energy landscape this year and reaffirms our commitment to driving a smarter transition to net-zero globally.
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Info Hub
Info Hub
Info Hub
All our published content is available within the info Hub, providing everything from the latest industry news to key company updates and insights from our in-house experts. Inform your energy strategy with these resources.
Info Hub
Download our latest Annual report
In our latest Annual Report and Financial Statements, we reflect on the year 2022-23 and the progress we have made in the months since, recapping our business activities, highlighting our key achievements, and looking towards the future of SmartestEnergy.
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Customer Service
Customer Service
Customer Service
Here you will find information relating to billing and payments; guidance on how to advise us about a change of tenancy or new meter connection and how to contact our customer service teams for Industrial and Commercial, Business and Smart Generation.
Customer Service
Access our online customer tools
Our customer login page provides a dedicated area for customers to access all online tools centrally and easily manage their energy contracts day-to-day
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Contact us
Contact us
Contact us
Here you will find the contact details for SmartestEnergy Limited and SmartestEnergy Business, as well as our office locations. Reach our sales and customer services teams via phone or email or submit a general enquiry using our online form.
Contact us
Join our team and power a revolution
Discover what it’s like to work for a next generation energy company. Search our current job vacancies and apply to be part of the SmartestEnergy team
Explore career opportunities 
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Informer Issue 663 - 20/08/2024
This week's energy news headlines: The need for connections reform is more urgent than ever according to Ofgem; The system operator announces plans to connect offshore wind farms in the Celtic Sea; Large UK firms say they plan to increase their spending on carbon credits. Our industry round-up includes the latest updates from Government departments and energy regulators.
20 08 2024
Read moreNews article - 20 August 2024
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Informer Issue 648 - 07/05/2024
This week's energy news headlines: The pipeline of battery storage projects across the UK jumped by two-thirds last year; The Government’s climate strategy has been dealt a legal blow; A project is launched to tackle grid bottlenecks and enable more renewable power. Our industry round-up includes the latest updates from Government departments and energy regulators.
07 05 2024
Read moreNews article - 7 May 2024
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Informer Issue 638 - 27/02/2024
This week's energy news headlines: The upcoming CfD auction could help double the UK’s offshore wind capacity; The latest T-1 Capacity Market auction secures record back-up power; A new structure is unveiled ahead of the launch of a new system operator. Our industry round-up includes the latest updates from Government departments and energy regulators.
27 02 2024
Read moreNews article - 27 February 2024
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Informer Issue 507 - 06/04/2021
This week's energy news headlines: Government is proposing a legally-binding target for restoring power following a major incident; A subsidy-free 260 acre solar farm in Wales has been declared the UK's largest; The system operator says a move to procuring its STOR balancing service on a daily basis is an important step transitioning away from fossil fuels.
30 03 2021
Read moreNews article - 30 March 2021