Iberdrola expects to spend about $15 billion in the United States on its transmission and distribution system and increase its renewable generation to around 10,000MW by the end of 2022.
Through its majority-owned Avangrid Inc subsidiary, Iberdrola has over 6,500MW of renewables in the United States. Although most wind farms Iberdrola plans to build in the United States are onshore, the company is developing Vineyard Wind off Massachusetts, the country's first big offshore wind farm. The 800 MW wind farm would be about 15 miles (24 km) south of Martha's Vineyard. Iberdrola is also developing an offshore wind farm in North Carolina and in other U.S. East Coast states and a $950 million power transmission line to transport up to 1,200MW of renewable energy from Quebec to New England.