The United States is home to vast quantities of clean energy resources – wind, solar, geothermal, and hydropower. Yet it lacks a modern interstate transmission grid to deliver carbon-free electricity to customers in highly populated areas of the country. President Obama has called for the United States to double the production of renewable energy in three years and to secure 25 percent of its electricity from renewable resources by 2025. Achieving this will require a cohesive effort from local, state, and federal officials and significant new investment in our transmission infrastructure. This trade association paper will highlight the barriers that hinder investment in transmission infrastructure and identify potential policy solutions to overcome those barriers.