Okhmatovskiy, IlyaWei, Jiahong2026-05-042026-05-042026-01-282025-12-17http://hdl.handle.net/10362/202800High-voltage transmission grids play a central role in sustainability transitions by enabling renewable energy to be delivered to demand centres. This study compares China and Germany from 2014 to 2023 to examine how state-capitalist and coordinated market-capitalist governance shape grid expansion, investment costs, and renewable integration. Using a comparative case-study approach based on harmonised grid indicators and policy evidence, the study finds that China achieves rapid and relatively low-cost grid expansion but faces recurrent grid-renewable mismatches. Germany, by contrast, expands its grid slowly and at higher cost while maintaining low curtailment through market-based operational measures. The results highlight institutional trade-offs in grid-based energy transitions.engElectricity gridsSustainability transitionsState capitalismCoordinated market capitalismChinaGermanymaster thesis204239214