COPENHAGEN, Oct 25 (Reuters) - Denmark's Orsted and Copenhagen Infrastructure Partners (CIP) have teamed up to develop 5.2 gigawatts (GW) of offshore wind in Denmark, corresponding to more than double the country's current installed capacity, the two companies said on Tuesday.The total of four projects will be developed through the so-called open-door procedure where the developers takes initiative to build an offshore wind farm without a government tender."Orsted and CIP hope that the projects can be built prior to and in parallel with the projects in the government tenders," the companies said, adding that the projects might be feasible already by 2027 or 2028.CIP was founded by former Orsted executives in 2012 and has since become a major developer and fund manager within renewable energy.The 50/50 partnership is subject to merger clearance, which is expected before the end of 2022."