Pentalum Technologies raised $9m in its first round from venture capital firms Cedar Fund, Evergreen Venture Partners and Draper Fisher Jurvetson in July. The round was then kept open to allow ABB in.

ABB, a Switzerland-based power and automation technology group, has used its corporate venturing group to make a strategic investment in Pentalum Technologies, an Israel-based company developing wind turbine controls.

Pentalum raised $9m in its first round from venture capital firms Cedar Fund, Evergreen Venture Partners and Draper Fisher Jurvetson in July. The round was then kept open to allow ABB in and increase the amount raised.

Girish Nadkarni, head of ABB Technology Ventures, said: "Cost and complexity issues are…