Low energy mode

Our journey to net zero

With our reach extended to drive change at scale in the UK, US and Australia, we’ve gone from strength to strength globally. A wholly owned subsidiary of Marubeni Corporation, a Fortune Global 500 company founded in 1858, we have spent the last 5 years in the US driving energy markets forwards and empowering the net zero transition, hitting a few important milestones along the way. Together, we’re a secure partner you can rely on for the long term.

Our Global story so far

2001

We were established as an aggregator of independent generation projects in the UK 

2008

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

2012

We were awarded UK Energy Supplier of the Year 2012 

2015

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

2018

We were awarded UK 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

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

2021

We celebrated 20 years in business! 

2023

  • ·         We launched our new brand identity, centred on our efforts to empower sustainable businesses and communities across the globe

    ·         We expanded into New England ISO, bringing together the people and expertise to drive the market forward in new regions

    ·         We ranked #1 in Pre-Sale and Post-Sale customer satisfaction against suppliers with under 15 TWh under contract, according to DNV survey

    ·         We achieved a 24% increase in the company workforce by welcoming 21 new employeesto our people-powered company

    ·         We experienced great strategic growth across our Origination function, bringing on recognized individuals with extensive energy industry expertise and reputation

    ·         Our parent company, Marubeni, achieved the highest rating, “AAA,” from the MSCI Japan ESG Select Leaders Index

SmartestEnergy US in numbers

#1 Customer satisfaction Pre-sale and post-sale against suppliers with under 15 TWh under contract.
38+ Utilities Live sold across 11 states and DC
4,690 Active or future contracts
14TWh Active or future contracted volume