The fund manages resources from the FGTSm, an obligatory workers' payroll savings account, and has previously invested in the wind sector.
The R$1.2bn São Clemente, in the northeast state of Piauí, began commercial operations this year after Casa dos Ventos sold power at the A-3 tender in 2014.
The bonds account for 15% of total investment, while the national development bank, BNDES, approved R$658.3m
