PV & BESS Assessor München — Technical Connection Requirements SWM Infrastruktur

München is our home base and the heart of our assessment practice. Whether villa PV in Bogenhausen, commercial storage in Messestadt Riem, or tenant electricity in Neuperlach — the TAB of SWM Infrastruktur are part of our daily work. We know what SWM looks for during grid connection inspections.

What are the special features of the München grid area?

SWM Infrastruktur operates the grid of the Bavarian state capital München with approximately 13,000 km of cable network. The city's FKG programme has not funded rooftop PV since the end of 2024; plug-in solar devices still receive EUR 0.40/Wp. The technical minimum requirements are documented in detail online.

München: solar obligation under the BayBO, FKG funding and registration with SWM Infrastruktur

In Bavaria, Art. 44a of the Bavarian Building Code requires solar systems on non-residential buildings: for new commercial and industrial buildings with building applications from 1 March 2023, for other non-residential buildings from 1 July 2023 and for complete renewal of the roof covering from 1 January 2025. Modules must cover at least one third of the suitable roof area; roofs under 50 m² are exempt. For residential buildings only a non-binding "should" provision has applied since 2025 (Art. 44a BayBO).

The city's climate-neutral buildings funding programme (FKG) accepted applications for rooftop PV only until 18 December 2024. Applications already filed remain valid. Plug-in solar devices are still funded at EUR 0.40 per Wp up to 800 Wp per dwelling (max. 50 percent of costs), as are PV advice and tenant electricity models (City of München).

Registrations go through the SWM Infrastruktur grid connection portal, changes to the metering concept additionally through the commissioning portal. Operators who want to switch to full feed-in with the higher tariff must notify this by 30 November of the previous year (SWM Infrastruktur). In the hailstorm of 12 July 1984, tennis-ball-sized hailstones damaged more than 70,000 buildings in München (München Wiki). Hail damage to modules is therefore one of our recurring inspection assignments. Our head office is at Siegesstraße 30 in Schwabing.

Which standards apply to PV systems in the München grid area?

Standard	Subject	Applies to
VDE-AR-N 4100	Low-voltage connection	Meter location, service entrance, protection concept
VDE-AR-N 4105	Generation on the LV grid	Mandatory for connection to the low-voltage grid
VDE-AR-N 4110	Medium-voltage connection	Mandatory for connection to the medium-voltage grid
Supplementary TAB SWM Infrastruktur	Regional requirements	Grid area
DIN VDE 0100-600	Initial verification	Every system before commissioning

How does the PV system registration process work at SWM Infrastruktur?

1. Registration: only by a registered electrical contractor (exception: balcony power plants).
2. Grid compatibility assessment: by SWM Infrastruktur from approx. 30 kWp.
3. Commissioning application: data sheet, site plan, circuit diagram, conformity certificates.
4. Meter location and initial verification: per VDE-AR-N 4100, the supplementary TAB and DIN VDE 0100-600.
5. Commissioning: SWM Infrastruktur installs the bidirectional meter; MaStR registration is then mandatory.

What are the requirements for the meter location?

Requirement	Specification
Meter type	eHZ in three-point mounting system
Surge protection	Type 1+2 combined arrester (mandatory for new systems)
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

Protection Concept PV/BESS System — Single-Line Diagram

How are balcony power plants registered with SWM Infrastruktur?

Balcony power plants up to 800 W can be registered through a simplified process. München subsidizes plug-in solar devices through the FKG program at EUR 0.40/Wp (max. EUR 320).

Grid Connection Process Overview

Important Documents and Forms

Which transmission system operator is responsible in München?

München is located in the TenneT control area. The responsible transmission system operator (TSO) is TenneT TSO GmbH, in charge of system stability and renewable feed-in in the extra-high voltage grid (220/380 kV). At regional distribution level, Bayernwerk Netz is also active.

Level	Operator	Voltage Level	Relevance for PV/BESS
Transmission grid	TenneT	220-380 kV	System stability, EEG feed-in
Distribution grid	SWM Infrastruktur	0.4-20 kV	TAB, grid connection, meter location
Customer system	System operator	0.4 kV (LV)	PV array, BESS, inverter

What are typical challenges for PV and BESS in München?

Regional points we check when planning and assessing projects in München:

Existing Commercial Roofs

Many commercial roofs in Munich suit PV, but existing buildings often lack load reserves, which then calls for a load-bearing assessment and suitable module selection.

Grid Bottlenecks in the Inner-City Network

The low-voltage grid in München's inner city reaches capacity limits with high PV feed-in density. Grid compatibility assessments by SWM Infrastruktur regularly lead to feed-in limitations or the requirement for reactive power control per VDE-AR-N 4105.

Fire Protection for Listed Buildings

Strict heritage protection regulations apply in München's inner-city districts Altstadt-Lehel and Maxvorstadt. PV installations require coordination with the Bavarian State Office for Heritage Protection and extended fire protection concepts.

Storage Integration in Underground Garages and Basements

BESS installations in München residential complexes are increasingly planned for underground garages. This requires specialized fire protection assessments, ventilation concepts per DIN EN 62619, and coordination with the München Fire Department.

When is an expert assessment advisable?

Occasion	Our Service
Acceptance	TAB conformity, defect report
Dispute with grid operator	Independent technical evaluation
From 30 kWp or medium voltage	Supervision, grid compatibility assessment
Defects	DIN VDE 0100-600, thermography, EL
Grid bottleneck	Grid analysis, alternative concepts

Frequently Asked Questions — TAB SWM Infrastruktur München

Contact Details SWM Infrastruktur GmbH & Co. KG

Address	SWM Infrastruktur GmbH & Co. KG, Emmy-Noether-Str. 2, 80992 München
Phone	089 2361-0
Email	info@swm-infrastruktur.de
Website	SWM Infrastruktur — TAB

Related Topics

On-site assessments — where we work

We prepare PV and BESS assessments throughout Germany. The following pages summarise the technical connection requirements of the respective grid operator:

Augsburg Berlin Bielefeld Bonn Bremen Dortmund Dresden Düsseldorf Duisburg Frankfurt Hamburg Hannover Karlsruhe Köln Leipzig Mannheim Münster Nürnberg Stuttgart

Last updated: 2026-09-28 | Author: Christoph S. Prestele, TUV-certified expert assessor | Source: SWM Infrastruktur GmbH & Co. KG