Girasol Energy secured follow-on investments from Mitsubishi UFJ Trust and Banking and ONE Innovators in the second close of its Series B, the company said on April 28, 2025. The latest commitments bring its raised total to 1.3 billion yen.
The company plans to use the funds to expand its Hyakunen Solar scheme, through which it acquires, repowers, and aggregates small- and medium-scale aging solar power plants nationwide. Girasol Energy launched the scheme through Hyakunen Solar Yamanashi, which owns 18 power plants totaling 1MW. It partnered with JR Kyushu and Mitsubishi UFJ Trust and Banking last month to expand it to Kyushu and target 10MW in the region by 2027.
“We are convinced that Girasol Energy’s technology will play an important role in solving social issues such as the problem of abandoned and decommissioned small- and medium-sized solar power plants,” said Hidenori Tsuruoka, Mitsubishi UFJ Trust and Banking’s Assistant General Manager of the Corporate Market Division.
In addition to the Hyakunen Solar business, Girasol Energy also plans to use a portion of the funds to grow its local solar power generation digitalization business, which includes supporting asset owners and on-site PPA service providers, as well as providing EMS for distributed energy resource aggregators.
Girasol Energy was founded in 2017. In addition to investments from the private sector, it also received support from the New Energy and Industrial Technology Development Organization (NEDO) and from Tokyo Metropolitan Government.
