Grid-infrastructure investment becomes binding constraint on transition: interconnection queues exceed 3000 GW globally by 2028; transmission-buildout timeline conflicts with renewable-deployment timeline in ≥5 major markets?

By the end of 2028, power grids worldwide are choked with waiting projects. Over 3,000 gigawatts of new wind and solar farms sit in interconnection queues—waiting for permission to plug into the electrical system—because transmission lines that would carry that power to cities don't exist yet and won't for years. In Europe, Texas, California, and other renewable hotspots, new solar gets built but can't deliver power. Grid operators must limit how much renewable energy gets connected each year, creating a traffic jam where clean energy waits but doesn't flow.

Interconnection backlogs remain serious but manageable by 2028—hovering near 2,000 gigawatts globally with most new projects moving from queue to grid within two to four years. Transmission projects in major markets accelerate or streamline, keeping pace roughly with renewable deployment. New undersea cables link European offshore wind to inland grids. Fast-track permitting in key regions shortens planning from a decade to five years. Grid operators avoid the scenario where renewable capacity stops being built because there's nowhere to connect it.