Our assessment practice in Saxony extends from Gruenderzeit quarters in the Dresden Neustadt to agricultural ground-mounted systems in the surrounding area. The 2023 merger created SachsenNetze and unified the TAB — an advantage for assessment work, as a consistent set of rules now applies to both urban and rural areas. For large-scale projects on the outskirts of Dresden, we frequently find that long cable runs limit grid compatibility.
SachsenNetze (formerly DREWAG NETZ / ENSO NETZ) has been operating the grid in Dresden and eastern Saxony since the 2023 merger. The grid area covers densely built urban areas as well as rural regions with long cable runs.
Along the Elbe and its tributaries, Dresden has designated flood areas under the Saxon Water Act. There, Section 78 of the Federal Water Act imposes a statutory building ban. Exceptions require a permit whose strict conditions the developer must prove, according to the information sheet of the Environmental Office. The competent authority is the Lower Water Authority within the Environmental Office. The sheet recommends a flood-adapted construction method.
In designated flood areas, besides the designation of new building areas and certain structures, the storage of substances hazardous to water is also restricted, as the explanatory notes to the flood area map set out. For battery storage this means that a container in a commercial area near the Elbe needs a flood concept in addition to fire protection. We check the installation height, protection against buoyancy and shutdown in case of inundation. A further question is whether cable routes, inverters and the transfer station lie above the expected water levels. Electrolytes in lithium-ion cells may in individual cases be classified as hazardous to water.
Unlike Bavaria, Berlin, Bremen or North Rhine-Westphalia, Saxony has not yet introduced a state solar obligation (overview by BauNetz Wissen, as of January 2026). PV systems in Dresden are therefore built voluntarily. In our assessments, yield and profitability take priority over meeting a mandatory quota.
| Standard | Scope | PV Relevance |
|---|---|---|
| VDE-AR-N 4100 | TAR low voltage | Mandatory: meter location, service entrance, protection concept |
| VDE-AR-N 4105 | Generation systems on LV grid | Mandatory for connection to the low-voltage grid |
| VDE-AR-N 4110 | TAR medium voltage | Mandatory for connection to the medium-voltage grid |
| Supplementary TAB SachsenNetze | Regional supplements | Grid operator-specific requirements |
| Requirement | Specification |
|---|---|
| Meter type | eHZ, three-point mounting |
| Surge protection | Type 1+2 combined arrester (mandatory for new systems) |
| SLS switch | selective circuit breaker upstream of the meter |
| Space reserve | 1 slot for smart meter gateway |
| Equipotential bonding | to main earthing busbar |
Plug-in PV systems up to 800 W are registered by operators via the SachsenNetze online portal. The meter exchange is free of charge.
Dresden is located in the 50Hertz control area. The responsible transmission system operator (TSO) is 50Hertz Transmission GmbH. 50Hertz is responsible for system stability in the extra-high voltage grid (220/380 kV).
| Level | Operator | Voltage Level | PV/BESS Relevance |
|---|---|---|---|
| Transmission grid | 50Hertz | 220-380 kV | System stability, EEG feed-in |
| Distribution grid | SachsenNetze | 0.4-20 kV | TAB, grid connection, meter location |
| Customer installation | System operator | 0.4 kV (LV) | PV generator, BESS, inverter |
Regional factors for planning and assessment in Dresden:
Dresden was hit by severe Elbe floods in 2002 and 2013. BESS installations in the Elbe valley expansions (Pieschen, Uebigau) require flood protection concepts with placement above the HQ100 level.
Dresden's historic city centre is architecturally sensitive. PV installations in the Innere Neustadt and Aeussere Neustadt require design coordination with the Saxony State Office for Historic Preservation.
Saxony currently has no solar obligation for new commercial buildings (as of January 2026). In Dresden, yield and profitability assessments are therefore what is needed.
Dresden's chip factories (Infineon, Bosch, GlobalFoundries) require uninterruptible power supply. PV-BESS systems as UPS supplements require assessments for grid feedback effects and islanding capability.
| Occasion | Our Service |
|---|---|
| Acceptance assessment | TAB conformity inspection, defect report |
| Dispute with grid operator | Independent technical evaluation |
| Systems from 30 kWp, medium voltage, capacity bottleneck | Grid compatibility assessment, grid analysis, alternative concepts |
| Defect assessment | DIN VDE 0100-600, thermography, EL |
VDE-AR-N 4100 and 4105 (low voltage) or 4110 (medium voltage) plus supplementary TAB from SachsenNetze GmbH.
Exclusively through a certified electrical contractor. Details: SachsenNetze Website.
Must comply with VDE-AR-N 4100 and supplementary TAB. Older cabinets (pre-2010): eHZ, surge protection, SLS. Cost: EUR 1,000-2,500.
Depends on system size and scope of work. Contact: info@pv-bess-assessor.com or +49 89 97 31 37 43.
For systems from 30 kWp, medium voltage connections, grid compatibility issues, disputes with the grid operator, acceptance inspections of commercial systems.
We know the SachsenNetze TAB from daily practice. Get in touch with us.
Contact Us| Address | SachsenNetze GmbH, Friedrich-List-Platz 2, 01069 Dresden |
| Phone | 0351 468-0 |
| info@sachsen-netze.de | |
| Website | SachsenNetze — TAB |
We assess nationwide. These pages summarise the TAB of each grid operator:
Augsburg Berlin Bielefeld Bonn Bremen Dortmund Düsseldorf Duisburg Frankfurt Hamburg Hannover Karlsruhe Köln Leipzig Mannheim München Münster Nürnberg Stuttgart
Last updated: 2026-11-03 | Source: SachsenNetze GmbH