Estimated grid hosting capacity that can be unlocked globally through selected technology upgrades by technology, 2025

Notes

The combined capacity increase is lower than the sum of individual technology contributions, as multiple grid-enhancing solutions often address the same binding constraints. As a result, capacity gains are not additive, and the effective deployment required in a combined application is lower than in cases where each technology is implemented on a standalone basis. The calculation of unlocked capacity via technology upgrades is based on literature review of papers, reports, statements and case studies providing quantitative assessments of unlocked capacity and technical/economic viability by solution across a diverse range of transmission networks worldwide. Potentials of unlocked capacity by region and globally have been calculated using existing country-level or region-level power grid length by voltage range, conductor types, current rating, number of circuits, congestion, average and peak demand. Hosting capacity values are provided as a high-level estimation based on transmission capacity gains and can differ from real-world applications based on grid- and project- specific detailed connection studies to verify constraints which are not considered in this analysis, e.g. voltage, short-circuit, substation capacity constraints, generation and load profiles, among others. Sources used to develop these methodologies are provided where relevant in the text below.