If you develop or own renewable generation or energy storage assets, SmartestEnergy can help you to maximise your commercial potential.

Generators who sell power to us benefit from working alongside our Australian team with proven local market expertise.

Our experience in serving independent generators will give you the confidence that you’re working with a reliable, bankable and commercial partner you can trust.

Our Australian operation is also backed by over 20 years of global energy experience, and the financial support of our parent company, Marubeni Corporation of Japan.

We are actively focusing our efforts on technology and product innovation to support energy entrepreneurs and play our role as a retailer to lead the transition to a net zero future.

Image description

Products and services

SmartestEnergy has over 20 years of experience in supporting renewable generators and businesses to realise both their short and long-term energy strategies.

We’re also one of the largest buyers and sellers of renewable certificates in the UK and across Europe.

Explore products
Image description


SmartestEnergy Australia Pty Ltd is a wholly owned subsidiary of the Marubeni Corporation of Japan, who is our ultimate, active and involved parent company, making us uniquely positioned to leverage global systems and strong financial support.

As one of the leading and original Japanese Trading Houses, Marubeni has built a successful and diverse global portfolio of businesses.

Learn more