In our assessment projects for photovoltaic and battery storage systems in the greater Augsburg area, we regularly encounter questions regarding the technical connection requirements of swa Netze. Whether acceptance of a commercial PV system in the Augsburg-Sued industrial areas, defect assessment of an existing system in Lechhausen, or technical supervision of a medium-voltage connection in the Innovationspark — TAB conformity is always a central checkpoint in our assessments.
swa Netze GmbH operates the power distribution grid in the Augsburg area serving approximately 300,000 inhabitants. The combination of old town locations with listed buildings and modern industrial areas in the south of the city leads to very different grid capacities. The municipal FKG subsidy program from Munich does not apply here — Augsburg has its own municipal climate protection programs.
Since 1 March 2023, Article 44a of the Bavarian Building Code (BayBO) has required solar systems on new commercial and industrial buildings. Since 1 July 2023 the obligation has covered all other new non-residential buildings, and since 1 January 2025 it has also applied when a roof covering is completely renewed. For residential buildings the provision is only a non-binding recommendation. For commercial properties in Augsburg we therefore first establish whether a system fulfils a legal obligation or was installed voluntarily. This determines how we assess defects, removal and retrofit costs.
The old town contains parts of the UNESCO World Heritage site “Water Management System of Augsburg” as well as numerous listed buildings and ensembles. Since 1 July 2023, under the amended Bavarian Monument Protection Act, permission for solar systems on listed buildings may only be refused if overriding heritage reasons stand in the way. The condition is that the electricity mainly serves the energy demand of the listed building. On roof areas not visible from public space, conventional modules are generally eligible for approval. For ensembles the decision remains discretionary.
The municipal solar funding programme 2023 to 2025, with a budget of EUR 500,000, ended as planned on 15 December 2025 after more than 1,560 applications. According to the city, a continuation is currently not in sight. When valuing a subsidised system, we request the grant notice because it records the funding conditions.
| Standard | Scope | Relevance for PV |
|---|---|---|
| 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 swa Netze | 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 |
Since 2024, balcony power plants up to 800 W inverter power can be registered through a simplified process at swa Netze. Registration is done via the digital feed-in portal. Contact for installers: Tel. 0821 6500-8977 (Mon-Fri 08:30-10:00).
Augsburg is located in the TenneT control area. The responsible transmission system operator (TSO) is TenneT TSO GmbH. TenneT is responsible for system stability in the extra-high voltage grid (220/380 kV). At the regional distribution grid level, Bayernwerk Netz is also an important player.
| Level | Operator | Voltage Level | Relevance for PV/BESS |
|---|---|---|---|
| Transmission grid | TenneT | 220-380 kV | System stability, EEG feed-in |
| Distribution grid | swa Netze | 0.4-20 kV | TAB, grid connection, meter location |
| Customer system | System operator | 0.4 kV (LV) | PV array, BESS, inverter |
Regional factors for planning and assessment in Augsburg:
Augsburg's historic water management system is a UNESCO World Heritage Site. PV systems in the old town and along the Lech canals require special coordination with the Lower Heritage Protection Authority.
The Augsburg Textile Quarter (AKS, Glaspalast) is being converted into residential and commercial districts. The sawtooth roofs of former factories are ideal for PV — however, structural load-bearing capacity must be confirmed by an expert assessment.
In the Augsburg urban area, both swa Netze and Lechwerke (LEW Verteilnetz) are active. The jurisdiction boundary sometimes runs through the middle of residential areas — advance clarification is essential.
The solar obligation under Article 44a BayBO already applies (see above). For new commercial buildings in Augsburg we check whether the scope and execution of the system meet the obligation.
| Occasion | Our Service |
|---|---|
| Acceptance assessment | TAB conformity check, 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 of swa Netze GmbH.
Exclusively through a certified electrical contractor. Details: swa Netze 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. Contact: info@pv-bess-assessor.com or +49 89 97 31 37 43.
For systems from 30 kWp, medium voltage, grid compatibility issues, disputes with the grid operator, acceptance of commercial systems.
We know the TAB of swa Netze from daily practice. Get in touch.
Contact Us| Address | swa Netze GmbH, Hoher Weg 1, 86152 Augsburg |
| Phone | 0821 6500-8977 |
| einspeiser.anmeldung@swa-netze.de | |
| Website | swa Netze — TAB |
We assess nationwide. These pages summarise the TAB of each grid operator:
Berlin Bielefeld Bonn Bremen Dortmund Dresden Düsseldorf Duisburg Frankfurt Hamburg Hannover Karlsruhe Köln Leipzig Mannheim München Münster Nürnberg Stuttgart
Last updated: 2026-09-28 | Author: Christoph S. Prestele, TUV-certified expert assessor | Source: swa Netze GmbH