WRB Serra Partners has raised $46.5 million for its debut fund. The fund's limited partners include family offices, institutional investors and the Overseas Private Investment Corporation. The Florida-based private equity firm invests in renewable energy, energy efficiency and water infrastructure in Latin America and the Caribbean. WRB Serra Partners has raised $46.5 million for its debut fund. The fund’s limited partners include family offices, institutional investors and the Overseas Private Investment Corporation. The Florida-based private equity firm invests in renewable energy, energy efficiency and water infrastructure in Latin America and the Caribbean.