London-based private equity firm Helios Investment Partners led a $55m funding round in January for Off Grid Electric, a solar home system provider with Silicon Valley origins. The round, supported by General Electric Ventures and existing investors, is believed to be the biggest equity investment to date in the off-grid power sector. “As the largest private equity firm exclusively focused on Africa, energy access is a priority theme for Helios,” Helios co-founder and managing partner Tope Lawani said.