Business Green: US renewable energy start up Matinee Energy has emerged from stealth mode with the announcement of a new alliance with South Korean heavyweights Hyundai and LG Electronics that will see the three firms work together to invest up to $1bn in new US solar energy power plants. Hyundai Heavy Industries and LG yesterday signed a Memorandum of Understanding with Matinee as part of a deal that also saw them accept an invitation to become lead partners in the first 240MW phase of a planned …