(Reuters) The private equity arm of Goldman Sachs Group Inc. has teamed up with Mexican consulting firm Ainda to jointly invest US$1.15b in energy and infrastructure projects in Mexico.

The person said Ainda would invest up to $1.15 billion in projects with Goldman. The joint investments would be worth at least US$100m each and span the oil and gas, power generation, transportation and water infrastructure sectors.

Goldman would put up at least 50 percent of the total equity amount in joint projects, the source said.

Mexico has begun seeking a larger role for private investors in infrastructure and energy projects as government finances have been hit by sinking oil prices and output.

The finance ministry unveiled a new vehicle in September similar to a real estate investment (REIT) trust called a “Fibra E”, which aims to lure private investment into energy projects.

Goldman’s merchant banking division has raised over $124 billion to invest across corporate, real estate and infrastructure sectors, according to its website.

Ainda and Goldman met last week in New York to begin selecting projects and the investments are likely to get under way soon, the person said. Goldman Sachs Merchant Banking Division and Ainda declined to comment.

Reuters reported in November that Ainda plans to raise 21 billion pesos ($1.15 billion) through a public offering of certificates for an infrastructure energy investment vehicle. The offering is expected for late February or early March.

The vehicle, which is designed to raise the money that Ainda will jointly invest with Goldman, has the option to convert into a Fibra E or shift specific projects to such a trust.