MUMBAI: Mahindra Solar One, a joint venture between the Mahindra Group and Kiran Energy, plans to invest 1,000 crore in solar power generation to build a capacity of 100 megawatts over the next two years, continuing the trend of large business houses investing heavily in the sector. "Our target is to be among the top three players in the solar industry in the next five years," Anand Mahindra, vice-chairman and managing director, Mahindra & Mahindra, told ET.