Low energy mode

Our timeline of growth and success

We’re a B2B renewable energy company empowering switched on customers, generators and partners to get to net zero. Founded in 2001, we’ve gone from strength to strength, and are here for the long term.

Our story so far

2001

We were established as an aggregator of independent generation projects

2008

We entered the UK supply market, powering Commercial and Industrial businesses with renewable energy

2012

We were awarded Energy Supplier of the Year 2012

2015

We launched the UK’s first certified 100% Renewable Supply product for Commercial and Industrial businesses

2018

We were awarded Energy Supplier of the Year for the second time 

2019

We acquired our UK SME supply business, SmartestEnergy Business, and opened our first international office in Syracuse, New York

2020

Our UK Headquarters moved to Canary Wharf, and we opened a second international office in Sydney, Australia

2021

We celebrated 20 years in business!

2023

We extended our accreditation of renewable products to SME businesses in the UK, and we launched our new brand identity centred on our efforts to empower a greener generation.

2023 milestones

With a 20+ year history of driving energy markets forward and empowering the net zero transition, we’ve hit a few important milestones along the way. Here are some from 2023.

With 4,000 MPANs we signed a deal with our largest ever retail customer
300MW of new solar capacity added to the UK market as we partnered with Low Carbon
5th in market share for Commercial and Industrial and 4th in renewable independent market share in the UK
"AAA" rating acheived by our parent company, Marubeni, from the MSCI Japan ESG Select Leaders Index
100% renewable energy proposition was boosted through Carbon Trust accreditation and a global reforestation scheme with Ecologi

SmartestEnergy in numbers

We’re on a mission to create a better energy system, and that starts with setting an example. So, as well as empowering a switched on generation, we’re completely transparent about our community’s journey to net zero.

Commercial and Industrial

25.7% C&I supply market share, ranked 5th
38.2TWh Annual Volume
905222630 Total number of MPANs supplied

Generation

49% renewable independent market share, ranked 5th
36.4TWh Annual Volume
11.5m equivalent British households powered (based on annual expected volume)

Trading

1332% REGO Market Share
1948TWh Energy attribute certificate volume traded
2460+ Million certificates / allowances traded
wind turbine

Read our latest annual report

SmartestEnergy’s annual report looks back at the highlights of an extraordinary year in the energy industry, recapping our global highlights and net zero ambitions.

Discover more

  • Our corporate backing

  • Our core values

Large business

If you're a generator or a commercial and industial (C&I) business, you're in the right place.

Am I a large business?

  • 300,000 kWh+ annual volume
  • £50k+ annual spend

Existing large business customer?  

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Small business

If you're a micro or smaller business you should visit our SmartestEnergy Business website.

Am I a small business?

  • < 300,000 kWh annual volume
  • < £50k annual spend
Visit SmartestEnergy Business

Existing small business customer?

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