In ΡΑΑΕΥ's register, 1,580 electricity storage stations with a combined injection power of 65.3 GW hold a storage licence. On the transmission system, however, only 42 stations, 1.6 GW, had a connection offer or were operating, according to ΑΔΜΗΕ's register (edition: April 2026).
Figures last updated: · Also in Greek: Αποθήκευση ενέργειας στην Ελλάδα: η αδειοδότηση σε αριθμούς
The table follows a station from the storage licence to connection. Each figure comes from a different official file with its own date, so the date is given beside every row.
| Stage | Stations | Injection power (GW) | Capacity (GWh) | Source and date |
|---|---|---|---|---|
| Storage licence, ΡΑΑΕΥ register | 1,580 | 65.3 | 307.1 | ΡΑΑΕΥ, 20 October 2026 |
| Complete connection requests pending at ΑΔΜΗΕ | 480 | 27.5 | 80.0 | ΑΔΜΗΕ, position at 31 October 2025 |
| Connection offer or in operation, transmission system | 42 | 1.6 | 5.3 | ΑΔΜΗΕ, register of April 2026 |
This table as data: CSV · JSON · free to reuse with attribution (CC BY 4.0)
The gap between the rows is the finding. A storage licence does not give a place on the grid: storage obtains a Final Connection Offer on separate tracks with their own capacity caps, as the guide to the priority groups explains.
Most stations in the register are batteries: 1,473 stations, 49.8 GW. Pumped storage counts fewer stations, 123, but larger ones, with 16.7 GW in total. These figures cover every storage station in the register, whatever its stage.
| Region | Stations | Injection power (GW) | Capacity (GWh) |
|---|---|---|---|
| Central Greece | 341 | 15.6 | 66.8 |
| Western Macedonia | 235 | 12.1 | 64.4 |
| Central Macedonia | 235 | 8.4 | 46.6 |
| Thessaly | 187 | 7.7 | 24.3 |
| Eastern Macedonia and Thrace | 158 | 7.5 | 34.2 |
| Western Greece | 213 | 7.4 | 45.1 |
| Peloponnese | 78 | 3.7 | 18.7 |
| Epirus | 55 | 1.9 | 7.0 |
| Crete | 62 | 1.3 | 4.6 |
| Attica | 14 | 0.6 | 1.9 |
| Ionian Islands | 14 | 0.1 | 0.3 |
| South Aegean | 2 | 0.1 | 0.1 |
| Stations spanning two Regions | 4 | 0.2 | 0.7 |
This table as data: CSV · JSON · free to reuse with attribution (CC BY 4.0)
The Region is as ΡΑΑΕΥ records it for each station. A few stations span two Regions and are counted separately, in the last row.
ΑΔΜΗΕ publishes, twice a year, a register of the storage stations that have a connection offer or operate on the transmission system. The editions since May 2024 show the trend:
| Register edition | Stations | Injection power (GW) | Capacity (GWh) |
|---|---|---|---|
| May 2024 | 13 | 0.5 | 1.2 |
| October 2024 | 24 | 0.8 | 1.9 |
| April 2025 | 27 | 0.9 | 2.2 |
| October 2025 | 40 | 1.5 | 4.2 |
| April 2026 | 42 | 1.6 | 5.3 |
This table as data: CSV · JSON · free to reuse with attribution (CC BY 4.0)
The register covers the transmission system only. Stations connecting to ΔΕΔΔΗΕ's distribution network are not included.
| Month of issue | Stations | Injection power (GW) |
|---|---|---|
| July 2025 | 30 | 0.5 |
| August 2025 | 43 | 1.8 |
| September 2025 | 29 | 1.2 |
| October 2025 | 16 | 0.6 |
| November 2025 | 10 | 0.1 |
| December 2025 | 19 | 0.3 |
| February 2026 | 13 | 0.2 |
| March 2026 | 12 | 0.8 |
| April 2026 | 5 | 0.2 |
| May 2026 | 4 | 0.2 |
| June 2026 | 37 | 1.9 |
| July 2026 | 3 | 0.0 |
The table shows the twelve most recent months with issues, by the issue date the register records for storage stations. A month with no issues does not appear. The most recent issue date for a storage station in the register is 17 July 2026.
Quote these figures freely, with a link to this page. The HTML below holds the headline figures, their date and the source in one paragraph, ready for an article or a report.
<p>In ΡΑΑΕΥ's register, 1,580 electricity storage stations (65.3 GW of injection power) hold a storage licence; on the transmission system, 42 stations (1.6 GW) had a connection offer or were operating, according to ΑΔΜΗΕ's register (April 2026 edition). Source: <a href="https://ariadnelabs.eu/guides/greece-energy-storage-pipeline.html">Ariadne Labs, energy storage in Greece in numbers</a>, figures of 20 October 2026.</p>Once a month, one short email with the latest figures from this page and our other data pages, and what moved. To subscribe, write to hello@ariadnelabs.eu; to stop, reply "stop". Details are in the privacy notice.
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In ΡΑΑΕΥ's register on 20 October 2026, 1,580 electricity storage stations, with 65.3 GW of injection power and 307.1 GWh of capacity.
On the transmission system, 42 stations, 1.6 GW, had a connection offer or were operating, according to ΑΔΜΗΕ's register (edition: April 2026). Stations on the distribution network are not included.
ΡΑΑΕΥ's register is checked daily and ΑΔΜΗΕ's files whenever a new edition is posted. The update date changes only when a figure changes.
This page presents aggregate figures from official files for information and does not replace legal or technical advice on a specific project. Each figure holds for the date given beside it. Only ΡΑΑΕΥ's and ΑΔΜΗΕ's own files are authoritative.
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