ABB Inc., Zurich, Switzerland, continued its aggressive North American expansion efforts with the announcement that it will seek to buy Power-One, a California-based maker of solar photovoltaic (PV) inverters, for approximately $1 billion. The boards of both companies have agreed to the transaction, which will be considered by Power-One shareholders at a special meeting. If approved by shareholders and regulators, the deal would close in the second half of 2013. Power-One, based in ...

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