Environmental approvals for battery storage in Greece: the decisions in numbers

Standard Environmental Commitments (ΠΠΔ) for batteries were published on 10 October 2024. Since then, Greek Regions have issued 587 decisions including standalone storage stations under them, for 14.9 GW of injection power where the decision's subject states it. 473 were issued by 31 October 2025, the deadline of the merchant battery call, and 114 since.

Figures last updated: 26 October 2026 · Also in Greek: ΠΠΔ για μπαταρίες: πόσες αποφάσεις υπαγωγής εκδόθηκαν, ανά μήνα και Περιφέρεια

How many decisions, for what size of station

This table as data: CSV · JSON · free to reuse with attribution (CC BY 4.0)

The power bands follow two rules. Below 1 MW of injection power no storage licence is needed. In the merchant battery call, ΔΕΔΔΗΕ granted the Final Connection Offer for stations up to and including 10 MW, and ΑΔΜΗΕ for larger ones.

By month

This table as data: CSV · JSON · free to reuse with attribution (CC BY 4.0)

The table shows complete months. A month with no decisions does not appear. The busiest month was September 2025, with 63. The last twelve complete months saw 149, and the current month 8 so far. The most recent decision is dated 23 October 2026.

By Region

This table as data: CSV · JSON · free to reuse with attribution (CC BY 4.0)

The Region is the one that issued the decision. A Region that does not appear has not posted a decision on Diavgeia that meets the counting rule.

What inclusion under ΠΠΔ means

Category Β standalone battery stations do not need an environmental terms decision (ΑΕΠΟ). They are included under Standard Environmental Commitments set by ΥΠΕΝ/ΔΙΠΑ/103448/7298/2024 (Government Gazette Β΄ 5628/10.10.2024). The Region's environmental service issues the inclusion decision. It has no expiry date as long as the project's declared data do not change. The deadlines and the route are in the battery storage permitting guide.

How the decisions were counted

• The source is Diavgeia, Greece's public register of administrative decisions, through its open-data search interface. Published decisions issued from October 2024 onwards are counted.
• A decision counts when its subject names Standard Environmental Commitments (or ΠΠΔ) and electricity storage (or ΣΑΗΕ, electrochemical storage, batteries, accumulators), and a Region issued it.
• A decision whose subject starts with "Υπαγωγή", "Απόφαση υπαγωγής" or "Προσδιορισμός" counts as an inclusion. Amendments and revocations are counted apart and not subtracted. Corrected reissues are not counted.
• When the subject also names PV, wind, a hybrid station or integrated storage, the decision counts under renewable stations with storage. Pumped storage is left out.
• Power is the first MW or kW figure after the word "ισχύος" in the subject. A decision covering several stations multiplies it by their number. Where no power is stated, the decision counts without MW.
• Decisions are counted, not stations. A decision revoked and reissued counts twice, and the latest month's postings may fill in later.
• Only aggregates are published. Holders' names, sites and decision numbers are not reproduced. The count runs every day, and the date at the top changes only when the figures change.
• The tables are free to reuse with attribution (CC BY 4.0). The decisions belong to the Regions that issued them and post them on Diavgeia.

Cite these figures

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>Since Standard Environmental Commitments (ΠΠΔ) for batteries were published on 10 October 2024, Greek Regions have issued 587 decisions including standalone storage stations under them, for 14.9 GW of injection power where the decision's subject states it. Source: <a href="https://ariadnelabs.eu/guides/greece-battery-storage-environmental-approvals.html">Ariadne Labs, environmental approvals for battery storage in Greece</a>, from decisions published on Diavgeia, figures of 26 October 2026.</p>

How MitOS sees it

The figures on this page describe the market. For your own projects, MitOS keeps each station's stage together with the deadlines and letters of guarantee that come with it. A rolling 90-day timeline and a live flag feed surface what is due and what is at risk before it costs you the project.

Frequently asked questions

Sources

• Diavgeia, open data and search interface: diavgeia.gov.gr/api/help
• ΥΠΕΝ/ΔΙΠΑ/103448/7298/2024, Government Gazette Β΄ 5628/10.10.2024: official text
• ΥΠΕΝ/ΓΔΕ/103834/4214, Government Gazette Β΄ 5165/29.09.2025 (deadline of the merchant battery call): official text

This page presents aggregates of public decisions for information and does not replace legal or technical advice on a specific project. Classification works from each decision's subject and can miss decisions worded unusually. Only the decisions as posted on Diavgeia are authoritative.

Permitting energy projects is a labyrinth. MitOS is the thread.