Spain and Portugal's power grids are interconnected but have few external connections, primarily to France and Morocco. Both countries benefit from significant hydropower, with Spain deriving 10% and Portugal 25% of their energy needs from it. They have also heavily invested in renewable energy, particularly wind and hydro, with Portugal having eliminated coal entirely by 2021. While solar energy is less effective for black starts due to its intermittent availability, wind energy may be useful if local infrastructure supports it. However, both countries lack extensive grid-scale battery systems, which could enhance black-start capabilities in the future.
Hydropower plays a crucial role in black starting the grid, providing much-needed energy with minimal external supply, as seen in Spain and Portugal.
Despite significant investments in renewables, both countries have limited resources for black-start capabilities, particularly relying on hydropower to stabilize the grid.
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