Baden-Württemberg

Name of programme:
Netzdienliche Photovoltaik-Batteriespeicher [Grid-assisted photovoltaic battery storage systems]

What does it fund?

With the “Netzdienliche Photovoltaik-Batteriespeicher” funding programme we are aiming to create incentives for the construction of additional photovoltaic installations (PV installations) and reduce loads on distribution grids. The relaunch of the funding programme is part of a package of measures focused on the future of Baden-Württemberg and helping it emerge “stronger from the crisis”. This aims to cushion the economic downturn caused by the coronavirus pandemic and get the regional economy back on track.

We fund investment in stationary, grid-assisted battery storage systems in combination with new photovoltaic installations connected to the distribution grid.

The funding is available both for “domestic storage systems” in combination with a photovoltaic installation with up to 30 kilowatt peak (kWp) power, and “commercial storage systems” in combination with a photovoltaic installation with more than 30 kilowatt peak power.

The number of battery storage systems eligible for funding is limited to one system per photovoltaic installation. Only stationary battery storage systems in Baden-Württemberg will be funded. They must operate appropriately for at least five years. The photovoltaic installation to be operated together with the battery storage system must also be constructed in Baden-Württemberg.

Who does it fund?

  • Natural persons
  • Business partnerships with legal capacity
  • Legal persons under private law
  • Legal persons under public law (in particular local authorities, municipal associations, special-purpose associations, other entities and institutions under public law) and farmers who feed in the power generated by a photovoltaic installation or a part of this.


What do we fund?

We fund investment in a stationary, grid-assisted battery storage system in combination with a new photovoltaic installation connected to the distribution grid.

The funding is available both for “domestic storage systems” in combination with a photovoltaic installation with up to 30 kilowatt peak (kWp) power, and “commercial storage systems” in combination with a photovoltaic installation with more than 30 kilowatt peak power.

The number of battery storage systems eligible for funding is limited to one system per photovoltaic installation. Only stationary battery storage systems in Baden-Württemberg will be funded. They must operate appropriately for at least five years. The photovoltaic installation to be operated together with the battery storage system must also be constructed in Baden-Württemberg.

How does our funding work?

The funding is granted as an investment subsidy for each battery storage system in euros per kilowatt hour (kWh) of usable battery storage system capacity; however, it is limited to a maximum of 30% of the net investment costs for the battery storage system. Any investment in a photovoltaic installation is not taken into account here.

How much funding is available?

Storage system with photovoltaic installation with up to 30 kilowatt peak

EUR 200 per kilowatt hour

Only battery storage systems with a storage capacity of at least two kilowatt hours will be funded. This means a minimum subsidy amount of EUR 400. If the storage system has a storage capacity larger than two kilowatt hours, the subsidy is correspondingly higher.

Storage system with photovoltaic installation with more than 30 kilowatt peak

EUR 300 per kilowatt hour

If the installed capacity of the new photovoltaic installation is more than 30 kilowatt peak, a subsidy of EUR 300 per kilowatt hour of storage capacity of the battery storage system is granted. The maximum amount of funding is EUR 45,000, which corresponds to a storage capacity of 150 kilowatt hours.

Bonus

  • Electromobility: An additional one-off bonus of EUR 500 will be granted for a grid-assisted/load-management-enabled e-vehicle charging point.
  • Photovoltaic installations over 100 kilowatt peak: We provide one-off funding of EUR 2,500 for project planning services for photovoltaic installations with over 100 kilowatt peak of installed capacity.
  • The bonuses are granted on top of the maximum funding amount.


What are the requirements?

Minimum installation ratio

The funding is only granted up to the level at which the ratio between the size of the photovoltaic installation and the usable storage capacity is at least 1.2 kilowatt peak in the photovoltaic installation to be constructed, for each kilowatt hour of the battery storage system. Any storage capacity exceeding this ratio is not eligible for funding.

If a funded project involving the installation of a photovoltaic installation and a storage system additionally includes the installation of a new load-management-enabled e-vehicle charging point and/or a new heat pump, there is an exemption from the minimum installation ratio requirement. In this case the requirement for funding of the battery storage system is that for each funded kilowatt hour of battery storage system capacity, at least 0.5 kilowatt peak of photovoltaic capacity is installed.

Technical requirements

1. The maximum power output of the photovoltaic installation at the grid connection point is 50% of the installed capacity of the photovoltaic installation in photovoltaic installations with up to 25 kilowatt peak power. The obligation to limit power continues throughout the lifespan of the photovoltaic installation, but at least for 20 years, and extends to cover any further operation of the photovoltaic installation after decommissioning of the storage system. The grid operator must have the option of checking the power limit at their own expense.

If photovoltaic installations < 25 kilowatt peak are equipped with facilities that meet the obligation described in paragraph 9, section 2, clause 1, number 2 of the Renewable Energy Sources Act (EEG) (remotely operated reduction of the feed-in power in the case of grid overload by the grid operator), the active power limitation of this administrative regulation accounts for 50% of the installed capacity in photovoltaic installations < 25 kilowatt peak.

2. The inverters of systems funded within the scope of this announcement have:
a) a suitable electronic and open interface for remote parameterisation which allows for readjustment, where required, of the characteristics for active and reactive power depending on the grid parameters of voltage and frequency; and
b) a suitable electronic and open interface for remote operation.
Intervention in the system of the installation operator via these interfaces requires their consent.

3. The funded facilities must comply with the application rules and grid connection guidelines for battery storage systems valid at the time of commissioning. These include the VDE-AR-N 4105 (“Power Generating Plants in the Low Voltage Grid”) with the additions and guidelines of the VDE FNN relating to storage systems, especially the FNN guideline “Connection and operation of energy storage units on the low-voltage network”.

4. The electronic interfaces of the battery management system and the protocols used must be made accessible for the purpose of compatibility with replacement batteries of the same or different manufacturers.

5. There is a fair value replacement guarantee for the batteries in the battery storage system for a period of 10 years. Within this context, the fair value of the batteries is replaced in the case of a fault in the batteries. The fair value is calculated based on an annual depreciation assumed to be linear over the 10-year period beginning with the date of commissioning. The fair value replacement guarantee must be issued by the seller of the battery system to the buyer, or ensured by means of a suitable insurance solution whose cost is borne by the seller. More extensive guarantee policies may be provided by the intermediary or manufacturer.

6. The safe operation of the battery storage system and the battery must be ensured through compliance with the relevant standards. Safe, professional commissioning must be confirmed and certified by a suitable specialist. It is furthermore recommended that the applicant checks implications relating to insurance law.

7. A forecast-based battery management system in line with number 3.1.6 of the funding programme’s administrative regulations is a mandatory funding requirement for projects with photovoltaic installations with an installed capacity up to 10 kilowatt peak.

Duration of programme:
Ongoing.

Exceptions/other/comments:
-

Contact and further information:
https://um.baden-wuerttemberg.de/de/energie/informieren-beraten-foerdern/foerdermoeglichkeiten/pv-speicher/