The projects, which total 311.3MW of installed capacity, are being developed by France's EDF, Italian group Enel and Aliança, a joint venture between miner Vale and utility Cemig.
The projects are located in the states of Sinaloa, Sonora and Aguascaliente.
Canadian pension fund PSP Investments will acquire a 9.9% stake in publicly listed yieldco Pattern Energy through a series of agreements that include US$1bn in capital commitments for Pattern's right of first offer project pipeline.
Rainstorms affecting the center and south of the country caused damage to 700 homes and left 6,000 inhabitants without water.
The funds will be poured into transmission lines, substations and distribution infrastructure to serve new solar power plants, according to a report by the government's EPE planning and research agency.
US President Donald Trump banned business relations with Cuban conglomerate GAESA, as well as individual travel to the island, as the US re-adopts a hardline stance against the Castro government.