Greece is working hard to green its energy mix, with renewable energy
Greece is working hard to green its energy mix, with renewable energy generation already covering over half of the country’s electricity production on many days. But success has brought new challenges — especially when clean energy supply exceeds demand. Over the March 25 holiday weekend, Greece narrowly avoided blackouts, offering a glimpse into the complex balancing act behind the country’s energy transition.
Greece’s electricity system is managed by two main operators called IPTO (ADMIE), responsible for the high-voltage transmission network, and HEDNO (DEDDIE), which handles distribution to homes and businesses.
Both are navigating an increasingly tricky task: ensuring grid stability while integrating rapidly expanding solar and wind capacity, often in real-time and with limited storage.
Over the Greek Independence Day holiday weekend, cloudy skies and African dust acted as an unexpected safeguard. They dimmed solar output at exactly the right time — when energy demand was low — preventing the oversupply that can destabilize the system.
Why Oversupply Is a Problem
But based on Greece’s weather patterns in the spring, this temporary relief won’t last. With Easter approaching, grid managers are preparing for a more serious test. If the weather is clear, solar and wind output could overwhelm the system during a
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