In focus
Co-location Battery Energy Storage Systems (BESS) for the energy transition!
Co-location battery storage systems utilise the grid connection of new or existing renewable energy systems. ESFORIN markets this electricity in times of increased demand and more attractive electricity prices - whether on the wholesale market or in balancing power!
Applying for new grid connections for stand-alone battery storage systems can be very time-consuming and may even be rejected due to local grid bottlenecks. At the same time, the value of renewable energies – especially solar parks - is decreasing. This is due to the rapid expansion of photovoltaic capacity and the lack of battery storage capacity, an overall decline in demand for electricity and the lack of flexibility to adapt it (especially in Germany).
Co-location and grid connection
The solution to the problems described is the installation of co-location battery storage systems at existing renewable energy grid connections. Co-location battery storage systems rely on the grid connection of new or existing renewable energy systems. Accordingly, they can flexibly adapt their feed-in and feed-out to the demand for electricity and electricity exchange prices.
In principle, battery storage systems can also be installed on existing, oversized industrial grid connections and old power plant sites. However, a lack of space and fire safety regulations are usually the limiting factors here, and there are two different categories of co-location battery storage systems:
Co-location battery storage systems that only utilise the physical grid connection and increase the market value of renewable energies. And, innovation tender systems that receive targeted funding as part of the EEG's innovation tender.
Co-location battery storage planned, but no grid connection?
Make an appointment now and find out more about how you might get a grid connection after all:
Two types of co-location battery storage systems
The use of battery storage systems at renewable energy sites can also be divided into two different categories: stand-alone operation and "real" co-location.
Stand-alone operation utilises the free technical capacity of the grid connection to flexibly feed the battery electricity into and out of the grid. A possible, but rather rare, parallel feed-in of green battery electricity may be subject to a technical restriction that the ESFORIN marketing algorithm, for example, can take into account without any problems. Therefore, a stand-alone battery storage system can even be installed if the "peak size" of the renewable energy system already corresponds to the level of the grid connection. Coordination with the local grid operator is essential here.
In the case of the "real" co-location battery, e.g. as part of an innovation tender, the green electricity feed-in of the renewable energy system is shifted to times of higher exchange prices with the help of the battery storage system. The purchase of grey electricity, i.e. charging the battery storage system using electricity from the public grid, is prohibited here, as both the renewable energy system and the battery storage system are assigned to the market premium model in terms of the balance sheet.
Direct marketing and cross-market optimisation of battery energy storage systems (BESS)
The marketing potential of co-location battery storage systems is often not sufficiently utilised, as simply feeding electricity in and out depending on the exchange price is not enough. At ESFORIN, we offer end-to-end solutions for co-location battery storage systems, including EEG direct marketing, flexibility marketing and balancing group management. We take care of your energy management processes and marketing for the best possible results. And, you take care of the operation and maintenance of your battery storage system.
Our company is a leading flexibility marketer on the short-term electricity markets with over 20 system types and extensive expertise in battery energy storage systems (BESS). Since 2016, we have been reacting to price fluctuations in milliseconds on the intraday market for our customers using customised algorithms and thus also to the fluctuating supply of renewable energies. In doing so, we can harmonise positive and negative flexibilities, i.e. supply and demand response management, with market prices. This expertise is particularly essential when discharging battery storage systems and offers a decisive competitive advantage in customised marketing.
Our allocation algorithm continuously takes into account the technical specifications and limitations of the battery storage systems and selects the most profitable market for stand-alone battery storage systems in real time:Intraday, day-ahead, primary or secondary power. This is how we maximise the efficiency, yield and service life of the co-location batteries!
The use of a battery storage system as part of a "real" co-location can more than double the market value of PV electricity (see diagram).The decisive factor here is correct dimensioning, which ESFORIN is happy to help with:
PV co-location yield
It is not only the individual marketing of large battery energy storage systems (BESS) that is profitable for the energy transition. Our cooperation with sonnen shows that even smaller aggregated home storage systems can be marketed intelligently. We are convinced that together we can drive forward a green and secure energy system. Together we will also find the optimum marketing model for your battery storage system: we will find the ideal dimensions for you and simulate historical marketing results. Please feel free to contact us!
About us
RETHINK ENERGY. RESHAPE ECONOMY.
The diversity of the energy sources available today leads to so far unseen volatility. We react to temporary changes within fractions of seconds – with our customised offer according to customer specifications.
Know-how
Our participations in a digitally characterised world
With our solutions, we consistently rely on digital applications. This is bearing in mind that fractions of seconds in the interaction between supply and demand decide on financial success, incurred costs, and long-term supply reliability.
As specific as your need:
Our answer
We are specialised in developing solutions customised to your personal requirements. And you can also righty expect this based on the information you receive from us.
We are happy to advise you
Christian Irion | Senior Sales Manager
+49.201.22038-143
christian.irion@esforin.com
ESFORIN SE
+49.201.22038-100
info@esforin.com
Ruhrallee 201 | 45136 Essen
