South Dakota regulators have officially approved what is expected to become the largest wind farm in state history, marking a new milestone for renewable infrastructure and economic investment in the region.
The approval reinforces South Dakota’s position as a national leader in wind energy and highlights the continued role large-scale renewable projects play in strengthening rural economies and expanding the state’s energy portfolio.
According to reporting by the South Dakota Searchlight, the South Dakota Public Utilities Commission (PUC) voted on February 12, 2026, to grant a permit for the Philip Wind Project, a $750 million, 333-megawatt (MW) wind energy development planned in Haakon County.
The project — proposed by Philip Wind Partners, LLC, a subsidiary of Chicago-based Invenergy — will span roughly 110 square miles of private land north of the town of Philip and is expected to include up to 87 wind turbines and a 5.5-mile transmission line connecting the project to the regional grid, according to reporting from South Dakota Public Broadcasting (SDPB).
Jobs, Economic Impact, and Timeline
According to the Searchlight report, the Philip Wind Project is expected to:
Pending final pre-construction activities, construction could begin as early as June 2026, with commercial operation targeted for December 2027.
A wind turbine on a farmer’s land near Aberdeen. (Photo by Joshua Haiar/South Dakota Searchlight)
What Regulators Said
In formal comments reported by the Governor’s Office of Economic Development, PUC Chairman Chris Nelson stated that the developer “has proven they are entitled to this permit under the criteria established in state law,” adding that once constructed the facility “will be the largest in the state, reinforcing our state’s electricity generation capacity.”
The PUC’s decision followed months of review and a joint settlement between commission staff and the developer addressing transmission routing, lighting systems, and other operational considerations.
Building on Recent Wind Growth
This newly approved project builds on a string of recent large wind developments across the state, including the South Deuel Wind Energy Center, one of the state’s largest wind projects approved in 2025.
South Dakota already ranks among national leaders in wind energy generation, and projects of this scale continue to strengthen the state’s electric grid while delivering long-term economic benefits to rural communities.
As South Dakota looks ahead to future transmission investment and energy infrastructure planning, projects like the Philip Wind Project demonstrate how renewable energy can attract private capital, support landowners, expand the tax base, and enhance long-term grid reliability — all while keeping energy development rooted in local communities.