Greece: The Hellenic Electricity Distribution Network Operator, HEDNO, also known as DEDDIE, has completed a major substation expansion programme to support additional renewable energy capacity in Greece.
The project was funded through the European Union’s Recovery and Resilience Facility under Greece’s National Recovery and Resilience Plan, Greece 2.0. According to HEDNO, 14 high-voltage and medium-voltage substations across the country have been reconstructed, adding a combined 725 MVA of capacity.
The upgrades are intended to enable the connection of new renewable energy plants and support Greece’s energy transition targets under the National Energy and Climate Plan for 2030. HEDNO CEO Anastasios Manos described it as the largest programme of its kind carried out in Greece so far.
The project began in July 2022 and was completed in less than four years, despite different technical requirements across the regions.
Substations rated 150/20 kV have been expanded by 50 MVA each in Ioannina, Florina, Eordaia, Domokos, Pylos and Oinofyta. Similar 50 MVA upgrades were completed at high-voltage substations in Meliti and Filippoi, while the Megara substation received a larger 75 MVA capacity increase.
Five additional substations are also set to become operational under the same programme, each adding 50 MVA. These include high-voltage systems in Aracthos and Trikala, and 150/20 kV substations in Skydra, Spercheiada and Magiko.
HEDNO’s five-year investment plan includes $5.46 B (€4.79 B) for 204 projects, including grid reinforcement, new user connections, and upgrades to high- and medium-voltage lines and substations.
Source: Balkan Green Energy News
