Grid Operator
Company that operates the local electricity grid and is responsible for grid connection and feed-in tariff payments.
Also known as: Distribution Network Operator, DNO
What Is a Grid Operator?
A grid operator (more precisely: distribution network operator, DNO) is the company that operates and maintains the regional electricity grid. For PV system operators, it is an important point of contact, as it approves the grid connection, provides the feed-in meter, and pays out the feed-in tariff.
Responsibilities Towards PV System Operators
- Grid connection: Approval and technical inspection of the connection
- Meter installation: Installation of a bidirectional meter or smart meter
- Feed-in tariff: Monthly or annual payment under the EEG
- Grid security: Compliance with technical connection rules (TAB)
Major Grid Operators in Germany
| Region | Grid Operator |
|---|---|
| North | TenneT, Schleswig-Holstein Netz |
| West | Westnetz, Stromnetz Berlin |
| South | Netze BW, Bayernwerk Netz |
| East | MITNETZ, E.DIS |
Registration Process for PV Systems
- Before installation: Submit a grid connection request to the DNO
- After installation: Commissioning notification by the electrician
- In parallel: Registration in the Market Master Data Register (MaStR)
Practical Tip
Processing time at the grid operator can take several weeks. Registration should be done early, ideally when accepting the quote. The installer usually handles the registration.
Related Terms
EEG (Renewable Energy Sources Act)
German law promoting renewable energies -- governs the feed-in tariff for solar electricity, among other things.
Feed-in Tariff
Legally guaranteed remuneration for solar electricity fed into the public grid, governed by the EEG.
Smart Meter
Intelligent metering system that digitally records electricity consumption and transmits data to the grid operator and consumer.
Market Master Data Register
Official register of the Federal Network Agency where all electricity generating systems in Germany must be registered.