GDF Suez New Ventures, the corporate venturing arm of France-based energy company GDF Suez, is looking to invest in energy  efficiency and storage to reflect changes  in the energy sector that have made traditional models less profitable, according to Giovanni Ravina, an investment manager at the unit.

GDF Suez launched the €100m ($125m) fund in May this year, following the lead of other large European utilities such as RWE and EDF in…