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 โ 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.
| Standard | Scope | PV Relevance |
|---|---|---|
| VDE-AR-N 4100 | Technical connection rules low voltage | Mandatory โ meter location, service entrance, protection concept |
| VDE-AR-N 4105 | Generation systems on LV grid | Mandatory for PV โค 135 kW |
| VDE-AR-N 4110 | Technical connection rules medium voltage | Mandatory for PV > 135 kW |
| Supplementary TAB SachsenNetze | Regional supplements | Grid operator-specific requirements |
| DIN VDE 0100-600 | Initial verification of electrical installations | Mandatory inspection before commissioning |
| Requirement | Specification |
|---|---|
| Meter type | eHZ in three-point mounting system |
| Surge protection | Type 1+2 combined arrester (mandatory for new installations) |
| SLS switch | Selective line protection switch upstream of the meter |
| Space reserve | Min. 1 slot for smart meter gateway |
| Equipotential bonding | Connection 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) and coordinates the feed-in from renewable energies at transmission grid level.
| 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 |
Dresden as a location for PV and BESS projects has specific regional characteristics that must be considered during planning and assessment:
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 is planning a solar obligation for new commercial buildings. Assessments for economic reasonableness and technical feasibility will be in strong demand once the regulation takes effect.
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 | Support, grid compatibility assessment |
| Defect assessment | DIN VDE 0100-600, thermography, EL |
| Capacity bottleneck | Grid analysis, alternative concepts |
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 28 947 920.
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 โ TAB |
Last updated: 2026-06-16 | Author: Christoph S. Prestele, TUV-certified Expert Assessor | Source: SachsenNetze GmbH