We bring e-mobility forward
TESVOLT Battery Storage Systems for Charging Management

Drive E-mobility Forward While Reducing Electricity Costs

In order to tackle climate change and drive forward the energy transition, switching individual and delivery traffic to e-mobility plays a key role. One of the greatest challenges in this regard is the expansion of a comprehensive and efficient charging infrastructure.

TESVOLT offers suitable complete solutions that include both technologically leading battery storage systems to provide the required energy and a fully developed energy management system for charging station control.

From quick charging stations at service areas or charging solutions for car parks, to large charging parks with numerous charging stations by the motorway – we offer the right product for every area of application. Whether by increasing self-consumption from renewable energies, peak shaving, avoiding grid expansion or smart control of the charging stations tailored to individual requirements – battery storage systems and energy management contribute significantly to lowering electricity costs in the charging infrastructure.

Benefits of a TESVOLT storage system

  • Increase self-consumption from renewable energies
  • Avoid peak loads
  • Cut electricity costs
  • Avoid expensive grid expansion

Benefits of the TESVOLT Energy Manager

  • Smart control over the charging park
  • Prioritisation of vehicles
  • Quick charging

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Smart control of charging stations

Smart control of the charging station infrastructure with the TESVOLT Energy Manager offers great benefits not only for operators of large charging parks but also for commercial enterprises, supermarkets or lessors of apartment buildings, for example.

It allows you to configure the settings dependent on the charging stations and vehicles in advance, thereby saving costs while meeting the requirements of your individual situation. The range of features includes: the prioritisation of individual charging stations to ensure, for example, that customer parking spaces are given priority over employee parking spaces; charging supplied exclusively or primarily from in-house electricity production; time-dependent control of charging parks; and quick charging with the support of a battery storage system.

Features of the TESVOLT Energy Manager

Charging exclusively/primarily
from electricity produced in-house

Prioritising charging stations

Time-dependent control
of charging parks

Quick charging
(when more is needed than the grid connection can provide)

Avoiding electrical peak loads

If many electric vehicles need to be charged simultaneously at peak times, electricity consumption from the grid increases, leading to what are known as electrical peak loads. This drives up electricity bills because electricity suppliers need to keep the output available constantly just in case, even if it is only briefly required. Even one peak load can push up costs for the entire year.

If you cover this increased electricity demand with the aid of a battery storage system, you can avoid peak loads and save costs in the long term. The storage system can be charged either from the grid at times when electricity is cheap or with electricity from plants for generating renewable energy, such as photovoltaic or wind power installations.

More about charging station control

Increase self-consumption from renewable energy

Owners of plants for generating renewable energy often only use a fraction of the electricity they produce. This is because it is not always needed exactly when it is generated. The rest is fed into the grid. With a battery storage system, charging station operators can significantly increase their self-consumption and thus save money with every kWh. After all, the purchase price for electricity from the grid is usually at least 25 cents per kWh. With a solar installation and storage system, however, each kWh only costs around 8–15 cents, including procurement costs.

More about self-consumption optimisation

Cut grid connection costs

A plant for generating renewable energies, such as a photovoltaic installation, combined with charging stations is the ideal mix from a climate perspective. In this case, however, the energy supplier usually has to expand the grid transmission point for the amount of electricity that the plant feeds into the utility grid. The costs for expanding transformers, for example, can total up to EUR 200,000, and are invoiced to the operator by the energy provider.

This is where TESVOLT storage systems come into play. Self-generated electricity can be temporarily stored, grid expansion can be avoided and huge cost savings can be made.

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See Selected References

Charging park
100% green electricity for Europe’s largest charging station for electric vehicles
Electric Buses
Increase in self-consumption of electricity from the PV installation for the electric bus fleet
Corporate Car Park
Quick charging of company cars, including peak shaving

Bmvi Tender for the German Grid

The Federal Ministry of Transport and Digital Infrastructure (BMVI) has launched a tender to set up and operate around 900 quick charging sites. 8,000 new quick charging points will be established throughout Germany, thereby promoting the expansion of e-mobility. Companies and corporate consortia can apply.

TESVOLT supports installation companies and project developers both with scalable storage solutions and smart control management as well as with taking part in the tender.

Contact us today via our Partner Portal.

More About the Tender

Our Products

TS-I HV 80
The all-star: Convinces with durability, efficiency and flexible expandability.

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Energy storage systems from TESVOLT – impressive across the board

Long Lifespan

The operator can make huge cost savings with every hour of storage system operation. Battery storage systems are subjected to wear with each charge cycle, however. There is therefore a specified number of full charge cycles for a storage system before it goes below a certain residual capacity. There is also a lifespan in calendar years that specifies the maximum lifetime in years.

With the intelligent ABO battery management system, every battery cell is always optimally charged and discharged in the TESVOLT storage system. For this reason, and thanks to the use of premium Samsung battery cells, TESVOLT storage systems are designed for a 30-year lifespan and 8,000 cycles.

Short charging and discharging times/high performance

The C-rate indicates how quickly a storage system can be charged or discharged. 1C means that a storage system can be fully charged or discharged within an hour. A storage system with 0.5C requires two hours for the same, while with 2C it takes just half an hour.

TESVOLT storage systems are capable of 1C, which is essential for high-performance consumers such as charging stations. If the C-rate is too low, the storage system will need to be very large in size (since a battery with a greater capacity can withstand higher charging and discharging currents) in order to provide the necessary performance. This ultimately makes the storage system unnecessarily expensive.

High overall efficiency

Some energy is “lost” in each storage process. The storage system efficiency indicates how much of the energy in the storage system can be taken out of it. This value should be well over 90%, while stand-by losses should be no greater than 5 watts.

High usable capacity

The nominal capacity describes the maximum possible energy content of a battery. However, many storage systems cannot be fully discharged as their depth of discharge is limited, so not all of the energy in the storage system is available as usable capacity.

Battery storage systems from TESVOLT have a discharge depth of 100%, thus making their entire nominal capacity available.

Modular expansion options

The more electrically powered vehicles there are on the road, the more charging stations are needed. TESVOLT storage systems of the same type can therefore be expanded or replaced at any time – not just during the first few months after commissioning, but even many years later. This means nothing stands in the way of installing additional charging points.

Wide temperature range

The permissible ambient temperature describes the temperature range in which safe operation of the storage system is possible. A wide temperature range opens up numerous installation options in the countryside.

TESVOLT storage systems have a permissible ambient temperature range of -10–50°C and can therefore be set up almost anywhere. The outdoor version can even withstand temperatures down to -33°C.

Greatest level of safety

Defects are identified by the control software and, if necessary, the system switches off immediately. Our prismatic battery cells have five safety mechanisms to minimise risks even in the event of physical damage.