Fact Sheets 2025
Impact of Wind and Solar on Transmission Upgrade Needs
Integration of substantial wind and solar capacity typically requires transmission system investments to: (1) access the best resource locations and (2) smooth the variability of renewable generation over larger areas. The transmission reinforcement projects serve several purposes at the same time. They can enhance energy markets, improve security of supply and enable integration of both new electricity generation and loads. Solar power plants that are connected to the transmission grid share much of the same transmission requirements as wind. Smaller solar installations (distributed, rooftop solar) are impacting the distribution grid.
