Jeonnam Offshore Wind Phase 1, South Korea's largest privately led offshore wind farm, has begun commercial operations off Jaeun-myeon in Sinan County, South Jeolla Province. Operated by Jeonnam Offshore Wind Power, a joint venture in which SK Innovation E&S holds 51% and Copenhagen Infrastructure Partners holds 49%, the project comprises 10 turbines rated at 9.6 megawatts each and has 96 MW of installed capacity. The 900 billion won project can generate enough electricity for roughly 90,000 households annually. Its turbines stand 227 meters above sea level at their highest point, with 97-meter, 44-ton blades and monopile foundations anchoring towers weighing 600 tons. Phase 1's average annual capacity factor is in the low-to-mid 30% range, with output rising to the 60% range in the early morning and remaining relatively strong in winter, complementing solar generation. Developers plan to start construction of 399 MW each for Phases 2 and 3 by the end of next year, creating a complex approaching 900 MW by 2031. The projects are intended to help supply the Honam semiconductor cluster, which the government estimates could require an additional 6.3 GW of electricity. High financing and equipment costs remain obstacles: offshore wind development costs are estimated at about 4.5 trillion won per 500 MW, while fixed-bottom offshore wind has a levelized cost of about 300 won per kilowatt-hour, compared with 50-70 won for large-scale nuclear power.