The Missouri House passed legislation that could effectively block one of the nation’s largest wind energy projects by prohibiting its developers from using eminent domain to run a high-voltage power line across the Midwest. The House vote targets a $2.3 billion project that would carry electricity generated by Kansas windmills on a 780-mile (1,255-kilometer) path across rural Missouri and Illinois before hooking into a power grid in Indiana serving eastern states.The project’s private developers say it has the potential to bring affordable, renewable energy to millions of homes. But the long-delayed power line has faced opposition from some property owners in its path and trouble clearing some regulatory requirements.