Can I install rooftop solar without a permit?
Yes, with an electronic application to DEDDIE — but new household systems go on net billing. Classic net metering is closed to new household entrants (it survives only for already-connected systems). Under Ministerial Decision ΥΠΕΝ/ΔΑΠΕΕΚ/93976/2772 (Gazette B' 5074/5 Sept 2024), new applications go on net billing (self-consumption). A standard rooftop PV needs no building/urban-planning permit — it's an electronic application to DEDDIE, which approves the connection (~15-day response). There's a simplified household track for systems up to ~10.8 kWp. Under net billing, surplus energy is paid at the wholesale/hourly price, while you buy at retail. In short: yes — an application to DEDDIE, no building permit for a standard roof.
📋 The rules
- New household: net billing (no longer net metering)
- Standard roof: no building/urban-planning permit
- DEDDIE approves the connection (electronic application)
- Simplified track up to ~10.8 kWp
- Surplus: paid at the wholesale/hourly price
🔓 Exceptions
- Already-connected systems: stay on net metering
- Large/commercial installations: extra licensing
- "Balcony PV"/apartment-roof majority rule: being finalised, not in force
⚠️ Penalties & fines
For households there are no "fines" — non-compliance just means the connection isn't approved. The system must go through the electronic application and the connection contract with DEDDIE; without these, you can't lawfully connect to the grid or inject energy. Note that some measures — such as "balcony PV" or a majority rule for installing on a shared apartment-block roof — were being finalised and aren't in force yet; confirm the published Gazette before relying on them. To proceed correctly: file an electronic application to DEDDIE for net billing, choose a system within household limits (~10.8 kWp) and sign the connection contract.
📎 Official sources
- YPEN — net billing ministerial decision (Gazette B' 5074/2024) →
- DEDDIE — self-consumption/PV →
- Ministry of Environment and Energy →
❓ Frequently asked
Do I need a permit for rooftop solar?
Not a building or urban-planning permit for a standard household rooftop PV. An electronic application to DEDDIE is enough; it approves the connection and a connection contract is signed. Large or commercial installations need extra licensing.
Is net metering still available?
Not for new household consumers. Classic net metering closed to new applications and survives only for already-connected systems. New household PV now falls under net billing, i.e. self-consumption, under the 2024 ministerial decision.
What is net billing?
Under net billing, you consume the energy you produce (self-consumption) and any surplus you inject into the grid is paid at the wholesale/hourly price, while you buy electricity at retail. It differs from the old net metering, which offset energy.
Who approves the installation?
DEDDIE (the Distribution Network Operator) approves the connection. You file an electronic application and, after approval, sign a connection contract. For standard household systems the process is simplified and electronic, with a response in about 15 days.
Can I install PV on an apartment-block roof?
It depends on the rights of use of the shared roof. A measure that would allow installation by majority (instead of unanimity) was being finalised and isn't in force yet. Confirm the published Gazette and the building's regulation before proceeding.
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