LAS VEGAS, Sept. 11 (Xinhua) -- The RE+ expo, North America's largest clean energy gathering, wrapped up Thursday in Las Vegas, the U.S. state of Nevada, highlighting the sector's rapid growth and presenting a wide range of cutting-edge technologies and solutions.
The four-day event brought together clean energy experts, industry leaders and professionals from across the United States and around the world to share best practices and explore new business opportunities.
