Photo: Senivpetro on Freepik
Published
January 16, 2026
Country
Greece
Author
Harry Aposporis
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Published:
January 16, 2026
Country:
Greece
Author
Harry Aposporis
Comments:
0
Print
Share
The Hellenic Distribution Network Operator (HEDNO or DEDDIE) announced that owners of self-consumption installations of over 400 kW have eight months, until September 15, to make necessary upgrades. Set point equipment includes specialized telemetering devices that the network operator uses for remote control and curtailment of solar power production.
Such equipment was first added in 2024 in other categories of photovoltaics, to ensure that HEDNO can dial down production at times when renewable energy production exceeds demand in the country. The effort is aimed at ensuring system stability and avoiding blackouts such as the one that happened in Spain last April.
According to Energypress, so far 4,300 MW of renewables units connected to the distribution network have added set-point equipment, out of a total of 5,500 MW deemed necessary. The authorities are aiming for the majority of the capacity to be ready by spring to avoid overcapacity. It’s a season that traditionally brings high renewable energy production and low demand in Greece. In 2024 and 2025, very low wholesale prices and high curtailments became a regular occurrence in the springtime.
As for the transmission network, all required renewable electricity plants have made the necessary upgrades.
HEDNO said the new requirement includes units both in the net metering and virtual net metering regimes, as well as the ones with and without storage.
Once proper upgrades have taken place, producers must submit a notification form to the distribution operator, along with necessary technical documents. Owners who do not comply in time, will be subject to disconnection from the grid, HEDNO said.
Its goal is to make horizontal curtailments from now on, only reducing production levels across photovoltaics, without having to shut down some of them entirely.
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