Technology, infrastructure & marketing from a single source

BESS complete solutions for solar parks

BESS complete solutions for new & existing solar parks: storage, transformer technology, medium voltage, LV distribution, cabling - incl. profitability forecast in 7 days and optional marketing via Faber Energy Trading.

Turnkey battery storage systems

for solar parks, including marketing

Faber E Tec supplies battery storage projects as a complete system - including transformer technology, medium voltage, busbar cabinets, cabling and commissioning. Included in all four concepts: a park-accurate Profitability forecast on the basis of your data - usually. within 7 days. On request, we can also take care of marketing and storage trading via Faber Energy Trading.

Monitoring & operational management

Transparent data, warning messages and fast response during operation.

VDE-certified

Lithium iron phosphate technology with high cycle stability.

Increased service life

Robust for continuous industrial use - safe and durable.

Why storage?

Why storage is indispensable for your solar park

Storage makes yield controllable again! Many solar parks are currently being held back economically by negative electricity prices, curtailment and grid restrictions. A BESS shifts energy specifically into valuable time windows and creates additional revenue opportunities - it is not only the storage system that is decisive here, but also the clean grid integration and the economically optimised operating strategy.

The 3 core services

Our BESS projects are based on three core services that consistently combine technology, efficiency and operation from a single source:

USP 1
Turnkey incl. infrastructure

Storage + transformer technology + medium voltage + ancillary systems - planned, delivered and commissioned with clear interfaces and one contact person.

USP 2
Profitability forecast in 7 days

Based on your project or inventory data, we create a customised profitability forecast - usually within 7 days of receiving the complete data.

USP 3
Marketing and storage trading

Optionally, we can take over the marketing and operational optimisation of your storage system via Faber Energy Trading - so that technology becomes a predictable operation and revenue strategy.

Parking-precise instead of flat rate

Profitability forecast

Every location, every grid structure and every feed-in profile is different. That is why you will not receive a standard invoice from us, but a specific Forecast for exactly your solar park - based on your planning (greenfield) or your real operating data (inventory).

Database & technology

We have a strong forecasting database and the right technology to reliably derive scenarios.

analyse

What you get:

Modern battery storage solution (BESS) from Faber E-Tec next to a fast-charging station to absorb peak loads in the commercial sector.

What we need for this:

For new construction / planning

For existing parks

Hint

Forecasts are simulation- and data-based. Actual results depend on market prices, grid restrictions, regulatory requirements and operational management, among other things.

We take over the marketing

including storage trading

A storage system is only really „economical" if it is operated correctly!

That's why we offer not only the technology but also the appropriate economic realisation:
On request, we can take over marketing and storage trading via Faber Energy Trading - from strategy to ongoing operation.

Your advantage

4 Storage concepts

including infrastructure, forecasting & optional marketing

We not only supply the storage container, but the complete system - including all ancillary systems. Included in every concept: Profitability forecast and marketing/trading on request.

New build as a complete solution

PV + storage + EPC + marketing

For: Investors & project developers who build new
Performance: PV (in co-operation) + storage system from Faber E Tec - turnkey implementation

Optional: Marketing & storage trading via Faber Energy Trading

1st concept

Complete storage package for system installers

EPC-ready

For: EPCs / system installers who want to integrate the storage system as a complete package
Performance: Storage + complete infrastructure with clear interfaces

Optional: Marketing & storage trading via Faber Energy Trading

2. concept

Retrofit existing car park - A

Variant A: new medium-voltage ring

For: Operators who need a new, scalable MS structure
Performance: Storage integration with new MS concept if required or economically viable

Optional: Marketing & storage trading via Faber Energy Trading

3. concept

Retrofit existing car park - B

Variant B: Utilise infrastructure, LV repowering

For: Operators who want to retrofit quickly and cost-effectively
Performance: Utilisation of existing transformers/stations (if suitable) + new LV superstructures from our production

Optional: Marketing & storage trading via Faber Energy Trading

4th concept

Let your energy work while you sleep

BESS systems store surplus energy from solar parks or charge themselves automatically from the power grid (time shifting). The stored energy is later made available exactly when it is needed - reliably, efficiently and economically.

TEXT BESS mask design only - BESS complete solutions
kWh
from 0
Battery storage
about
0
Charging cycles with LFP technology
kWh
until 0
BESS solutions
Rarely on the market

Storage + infrastructure + production + marketing in a complete package

Many suppliers deliver battery systems, we deliver the complete integration including transformer technology, medium voltage and, if required, marketing. Our high level of vertical integration shows its strength particularly in retrofitting: With our own sheet metal and copper production and automated processes, we are very fast in the production of customised LV solutions - ideal for continuing to use existing infrastructure and reducing conversion times.

Faber E-Tec BESS product range

Optimise your energy management with Faber E-Tec: Our scalable energy management systems Battery storage (418 kWh to 5 MWh) enable intelligent self-consumption of electricity and efficient peak shaving. Rely on future-proof BESS systems that impress with their quality and guaranteed grid conformity.

Start projects now with Faber E-Tec
and benefit from short delivery times at Faber E-Tec!

How to get to the store

including forecast & optional marketing
1. record data

New build or existing building - we discuss your requirements and record the relevant data

2. deliver forecast

Generally within 7 days of data receipt - parking-accurate and scenario-based

3. start implementation

Optionally with marketing & storage trading via Faber Energy Trading

BESS EPC Enquiry

We will get back to you shortly with queries and an initial project proposal to suit the application, output and grid connection.
Contact us directly:
Frequently asked questions
Answers on battery storage, economic efficiency and marketing

Usually within 7 days of receipt of complete data - customised to your park.

Yes - on request, we can take over the marketing and operational optimisation via Faber Energy Trading.

For new construction or planning, the location, PV output, feed-in point, grid level (LV/MS/HS), target (e.g. negative hours, curtailment, marketing) and a rough system concept are usually sufficient. For existing parks, a single-line diagram, transformer data, MV/LV structure and - if available - generation/feed-in data as well as information on curtailment and negative price hours are also helpful.

Grid integration is the crucial part: we plan the connection and protection concept, integrate the transformer technology and the medium voltage (depending on the car park structure, also with adaptations to MV/LV distributions, collective cabinets and cabling) and commission the system in a grid-compliant manner. The aim is a clear, clean interface to the grid operator - without any surprises during implementation.

Yes, retrofitting is a typical application. Depending on the existing system, there are two options: Either a new medium-voltage ring / a new connection is planned (if the existing system requires it), or we use existing infrastructure, if it is suitable, and rely on LV repowering with customised low-voltage superstructures. We clarify which option makes sense by means of a technical assessment plus a profitability forecast.

The appropriate storage size depends on your goal: reducing curtailment, avoiding negative price hours, optimising revenues via marketing/trading or a combination of these. That's why we don't provide generalised values, but derive the dimensioning from your data - including scenarios (conservative/realistic/ambitious) and sensitivities to price assumptions, grid restrictions and operating strategy.

If you wish, we can take over the marketing and operational optimisation of the storage system via Faber Energy Trading - i.e. the strategic and ongoing operation that turns the storage system into a predictable revenue component. In practical terms, this means a coordinated operating strategy (park/grid/target), marketing setup and ongoing optimisation during operation - so that technology and profitability go together.

BESS data sheets v.2026
We are updating our BESS data sheets for version 2026.
Register now and you will automatically receive the new documents as soon as they are published.

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