Recent pilot projects by Belgian startup H2Congo show promising results – storing surplus hydro energy as hydrogen during rainy seasons, then converting it back to electricity during dry months. Congo isn't just about storing energy – it's sitting on 70% of the world's cobalt reserves.
[pdf] The Congo River's Inga Dams could generate 42 GW – enough to power all of Norway twice over. But here's the kicker: seasonal rainfall variations make hydrogen storage essential. Think of it like saving monsoon water for a desert hike.
[pdf] $280 - $580 per kWh (installed cost), though of course this will vary from region to region depending on economic levels. For large containerized systems (e.g., 100 kWh or more), the cost can drop to $180 - $300 per kWh.
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