Greek distribution system operator DEDDIE is accelerating a national smart-meter programme aimed at replacing conventional meters across approximately 7.7 million connections by the end of 2030. The operator plans to install 1 million smart electricity meters during 2026 as part of the wider deployment.
2026 installation pace and projected meter numbers
About 330,000 new meters were installed during the first part of 2026. Installation teams are completing approximately 4,400 meters a day, and DEDDIE plans to raise deployment to around 5,900 units daily in the coming months.
If the current pace is maintained, the number of operational smart meters would reach approximately 2.4 million by year-end 2026. The planned acceleration is intended to create a delivery buffer for regional access constraints, installation failures, and more complex replacements in multi-unit buildings and remote areas.
Remote metering integration and central monitoring platform
The hardware rollout is only one component of the programme. DEDDIE is also expanding its remote-metering infrastructure and connecting newly installed devices to a central monitoring platform.
Approximately 1.4 million first-generation smart meters must be integrated into the same environment to form a unified national metering system. This step links device deployment with ongoing communications and monitoring requirements across the network.
Operational functions for networks, suppliers and customers
Smart meters are expected to provide DEDDIE with more granular visibility over consumption patterns, outages, and low-voltage network conditions. They can also support remote connection services, faster supplier switching, loss detection, and more accurate settlement for electricity consumed during individual hourly or sub-hourly periods.
For electricity suppliers, digital metering provides the technical basis for time-of-use and dynamic-price products. For consumers with rooftop solar, batteries, heat pumps, or electric vehicles, it enables measurement of consumption and production at sufficient frequency to support flexibility services.
Data management, cybersecurity and performance measurement
The programme includes data-management and cybersecurity requirements. DEDDIE will need to maintain interoperability between different meter generations, protect personal consumption information, and keep the central platform available during market and network events.
The initiative’s performance will be assessed based on the proportion of meters that reliably communicate with the central platform rather than on physical installation volumes alone. A connected but non-reporting meter provides limited operational value and can lead to settlement disputes.
Remaining conversion work before 2030 deadline
With 2.4 million meters expected by year-end 2026, Greece would still have more than 5 million connections remaining to convert before the 2030 deadline. The current acceleration is described as the start of the programme’s industrial deployment phase rather than its completion.
