Exeger Sweden AB secured $10 million in growth funding from SoftBank to accelerate the global commercialization of its solar cell technology.

"The partnership with SoftBank opens the doors to global markets for Exeger," said Per Langer, Fortum Oyj's city solutions executive vice president, in a March 11 statement.

Fortum partially owns Exeger, with a €5 million investment in the developer in 2016.