It initially took a controlling stake in the Irish business in 2016.
Mitsubishi is understood to be retaining ElectroRoute’s operation in Japan, but divesting the rest of the operation.
PwC is advising on the potential sale and likely bidders have already been approached.
Industry publication PeakLoad, which first reported the planned sale, said ElectroRoute now has 3.6GW of energy assets under management, including wind and solar farms, battery storage facilities, gas-fired electricity peaking plans and co-generation assets.
It actively trades power in markets including Ireland, the UK, Italy, Spain, Belgium and France.
ElectroRoute was founded by executives including its former CEO, Ronan Doherty, in 2011. It has offices in Ireland, the UK, mainland Europe and Japan.
The company has been loss-making for the last three financial years.
In the 2025 financial year, ElectroRoute Energy Trading posted a loss after tax of €18.4m. That compared with a €35.8m loss the year before. In 2023, it posted a €9m loss after tax.
Its turnover rose to €221.2m in 2025 from €175.5m a year earlier.
Our trading activities have continued to be impacted by ongoing dislocations in the energy markets
“Despite the loss, the company continued to make progress in building its multi-year contracted value with assets under management increasing to 2.3GW in Europe,” the directors noted in the 2025 accounts, which were signed off in July last year.
PeakLoad noted that ElectroRoute executed an average of 5,200 trades a day in its last full financial year.
The directors said they were “particularly encouraged” by the growth in assets under management and the strengthening of the project pipeline, especially in the UK and in the energy storage market.
“Our trading activities have continued to be impacted by ongoing dislocations in the energy markets, which have limited opportunities for our fundamental-based trading strategies,” they said.
“In response, the company has invested in expanding its capabilities and focus on short-term trading.”
They said they were hopeful that the company would see a return to profitability in the 2026 financial year, which ended last month.
However, energy markets have been upended following the launch of the US war against Iran.
The huge uncertainty caused by US president Donald Trump’s varying stances has resulted in extreme volatility in global oil and gas prices.
Last year, Irish energy trading firm Erova Energy, which was backed by Japan’s Mitsui, was sold to Australia’s Macquarie.
