DE202022105047U1 - Mobile power supply unit - Google Patents

Abstract

Mobile energy supply unit (1) comprising
- a container (10), in particular a standard container, and
- A photovoltaic system (20) for generating electrical energy, wherein
- Photovoltaic modules (21) of the photovoltaic system (22) are arranged on an upper side (11) of the container (10),
- The container (10) has a first connection (30.1), which is coupled directly or indirectly to the photovoltaic system (20), for connecting the container (10) to a building (G) in order to connect the building to the electrical energy take care of.

Description

field of invention

The present invention relates to a mobile energy supply unit, in particular for supplying buildings with electrical and thermal energy.

Background of the Invention

It is known to equip building roofs with photovoltaic systems in order to supply the building with electrical energy. Such a system essentially consists of photovoltaic modules that can be arranged, for example, on the roof of the building. The photovoltaic modules are coupled to an inverter, which converts the direct current provided by the photovoltaic system into alternating current.

The alternating current provided by the inverter can be fed into the public power grid if processed accordingly. Alternatively or additionally, the current provided by the inverter can be supplied to the consumers in the building. In addition, the electricity provided by the photovoltaic system can be stored in an accumulator. The accumulator can make electrical energy available to the building if, for example, the electrical energy provided by the photovoltaic system is not sufficient for the power supply of the building. The procurement of electrical energy from the public power grid can be avoided at least as long as the accumulator provides sufficient electrical energy.

To supply the building with thermal energy, for example for hot water treatment or building heating, it is known to connect the building to a district heating network, for example, or to carry out the hot water treatment by means of a gas heating system. In the case of gas heating, the building usually has to be connected to the public gas network. As an alternative to this, the hot water can also be heated with the help of an oil heater, in which case a suitably dimensioned oil tank must be provided in or on the building for storing the heating oil.

A disadvantage of the systems mentioned above is that the building has to be connected to the public infrastructure (public electricity network, district heating network, gas network, etc.). Another disadvantage is that the individual systems are permanently installed and can therefore only be operated stationary at the installation site. Buildings that are to be retrofitted with a photovoltaic system or efficient heating systems, for example, require a corresponding amount of space that is often not available.

object of the invention

The object of the present invention is therefore to provide solutions that allow buildings to be supplied with electrical and thermal energy independently without the buildings having to be connected to the public supply infrastructure, and with which existing buildings can be easily retrofitted.

Solution according to the invention

According to the invention, this object is achieved with a mobile energy supply unit according to the independent claim. Advantageous configurations are specified in the dependent claims.

• - einen Container, insbesondere einen Normcontainer, und
• - eine Photovoltaikanlage zum Erzeugen von elektrischer Energie,

wobei

• - Photovoltaikmodule der Photovoltaikanlage an einer Oberseite des Containers angeordnet sind,
• - der Container einen ersten Anschluss, der direkt oder indirekt mit der Photovoltaikanlage gekoppelt ist, aufweist, zum Anschließen des Containers an ein Gebäude, um das Gebäude mit der elektrischen Energie zu versorgen.

Accordingly, a mobile energy supply unit is provided comprising

• - a container, in particular a standard container, and
• - a photovoltaic system for generating electrical energy,

whereby

• - Photovoltaic modules of the photovoltaic system are arranged on an upper side of the container,
• - The container has a first connection, which is directly or indirectly coupled to the photovoltaic system, for connecting the container to a building in order to supply the building with electrical energy.

In this way, a building can at least be partially supplied with electrical energy. a connection to the public power grid is only necessary as a backup. In addition, the energy supply unit can not only be used stationary, i.e. it can be brought to another building if necessary in order to supply the other building with energy.

It is advantageous if the mobile energy supply unit also includes a storage device for storing the electrical energy, with the storage device being arranged inside the container and being coupled directly or indirectly to the first connection. Even without solar energy, the building can be supplied with electrical energy.

• - wobei das Wasserstoffsystem eine Wasserstofferzeugungseinrichtung und einen damit gekoppelten Wasserstofftank, und eine mit dem Wasserstofftank gekoppelte Wasserstoffaufbereitungseinrichtung umfasst, wobei
  • - die Wasserstofferzeugungseinrichtung angepasst ist Wasserstoff zu erzeugen, wobei der erzeugte Wasserstoff in dem Wasserstofftank gespeichert wird, und
  • - wobei der Motor mit der Wasserstoffaufbereitungseinrichtung gekoppelt ist, und die Wasserstoffaufbereitungseinrichtung angepasst ist den in dem Wasserstofftank gespeicherten Wasserstoff für den Motor aufzubereiten, wobei der Motor mit dem aufbereiteten Wasserstoff betrieben wird.

It is advantageous if the mobile energy supply unit also includes a hydrogen system arranged inside the container and a motor,

• - Wherein the hydrogen system comprises a hydrogen generation device and a hydrogen tank coupled thereto, and a hydrogen treatment device coupled to the hydrogen tank, wherein
  • - the hydrogen generating device is adapted to generate hydrogen, the generated hydrogen being stored in the hydrogen tank, and
  • - wherein the engine is coupled to the hydrogen processing device, and the hydrogen processing device is adapted to process the hydrogen stored in the hydrogen tank for the engine, the engine being operated with the processed hydrogen.

The electric power provided by the photovoltaic system and/or by the storage device can be used to operate the hydrogen generation device.

• - das Gebäude mit Warmwasser aus dem Wassertank zu versorgen und/oder
• - dem Wassertank Frischwasser zuzuführen.

It is advantageous if the mobile energy supply unit also includes a hot water system arranged inside the container, the hot water system including at least one water tank with a heating system, the heating system being adapted to heat the water contained in the water tank, and the container having a second Connection, which is coupled to the water tank, has for connecting the container to the building in order to

• - supply the building with hot water from the water tank and/or
• - supply fresh water to the water tank.

This means that the building can also be supplied with thermal energy, such as hot water, so that, together with the electrical energy, the building can be supplied with energy independently.

It is advantageous if the engine is assigned a generator for generating electrical current, with the generator being driven by the engine. The engine or generator can thus be used to generate thermal or electrical energy if, for example, the photovoltaic system does not provide enough electrical energy.

It is advantageous if the mobile energy supply unit also includes a control device arranged inside the container for controlling the components, the components including the photovoltaic system, the storage device, the hydrogen system, the engine and the hot water system.

All components for the self-sufficient energy supply and its control are housed in the container.

• - der von dem Photovoltaiksystem erzeugte elektrische Strom dem Heizsystem zugeführt wird, um das Wasser im Wassertank zu erwärmen, und/oder
• - der von dem Photovoltaiksystem erzeugte elektrische Strom zum Speichern in der Speichereinrichtung zugeführt wird, und/oder
• - der von dem Photovoltaiksystem erzeugte elektrische Strom oder der in der Speichereinrichtung gespeicherte elektrische Strom an dem ersten Anschluss zur Verfügung gestellt wird, wobei der in der Speichereinrichtung gespeicherte elektrische Strom an dem ersten Anschluss zur Verfügung gestellt wird, wenn das Photovoltaiksystem nicht ausreichend elektrischen Strom für die an dem an dem ersten Anschluss angeschlossenen Verbraucher liefert, und/oder
• - der von dem Photovoltaiksystem erzeugte überschüssige elektrische Strom der Wasserstofferzeugungseinrichtung zum Erzeugen von Wasserstoff zugeführt wird, und/oder
• - dem Motor Wasserstoff aus dem Wasserstofftank zugeführt wird und der Motor gestartet wird, um mit dem Generator elektrischen Strom zu erzeugen, der an dem ersten Anschluss zur Verfügung gestellt wird oder in der Speichereinrichtung gespeichert wird oder dem Heizsystem zugeführt wird, und/oder
• - die thermische Energie des Motors über einen Wärmetauscher dem Wassertank zugeführt wird.

The control device can be adapted to control the components in such a way that

• - the electrical current generated by the photovoltaic system is fed to the heating system in order to heat the water in the water tank, and/or
• - the electrical power generated by the photovoltaic system is supplied for storage in the storage device, and/or
• - The electric current generated by the photovoltaic system or the electric current stored in the storage device is made available at the first connection, the electric current stored in the storage device being made available at the first connection if the photovoltaic system does not have sufficient electric current for which delivers to the consumer connected to the first connection, and/or
• - the excess electrical current generated by the photovoltaic system is fed to the hydrogen generation device for generating hydrogen, and/or
• - the engine is supplied with hydrogen from the hydrogen tank and the engine is started in order to generate electricity with the generator, which is made available at the first connection or is stored in the storage device or is supplied to the heating system, and/or
• - the thermal energy of the engine is fed to the water tank via a heat exchanger.

The control device is adapted to carry out the measures mentioned above individually or in combination with one another.

It is advantageous if the photovoltaic modules of the photovoltaic system are fastened to the container by means of a fastening device, the fastening device having adjusting means with which the inclination and/or alignment of the photovoltaic modules can be adjusted. The sun's energy can thus be used optimally. It can be provided that the photovoltaic modules for the purpose of transporting the energy supply ment unit by means of the adjusting means rest essentially flat on the top of the container.

It is advantageous if the walls of the container have thermal insulation.

The container can have an access door.

character list

• 1 eine schematische Darstellung der erfindungsgemäßen mobilen Energieversorgungseinheit.

Further details and features of the invention as well as specific exemplary embodiments of the invention result from the following description in conjunction with the drawing. It shows:

• 1 a schematic representation of the mobile power supply unit according to the invention.

Detailed description of the invention

1 shows a schematic representation of the mobile energy supply unit according to the invention, with which a self-sufficient supply of electrical and thermal energy to buildings is made possible. Containers and buildings are not shown here to scale.

Essentially, the energy supply unit according to the invention comprises a photovoltaic system 20, a storage device 22 (accumulator) coupled to the photovoltaic system for storing the electrical current provided by the photovoltaic system, a hydrogen system 40 for generating hydrogen and for processing the hydrogen generated for the engine 50 (gas engine) , an engine to which the hydrogen generated and processed by the hydrogen system is supplied, a hot water system 60 (including a water tank 61) with which hot water is provided for the building, and a control device 70 with which the power supply unit is controlled. The hot water system 60 is also referred to below as hot water treatment.

According to the invention, these components are all arranged in a container, with only the photovoltaic system (also called photovoltaic system below) being arranged on the upper side of the container. The container can be a standard container, such as a standard shipping container or other ISO container. This makes it easy to bring the energy supply unit to another location, since all means of transport suitable for transporting standard containers can be used.

To attach the photovoltaic modules of the photovoltaic system on the roof of the container are in 1 adjusting means, not shown, are provided, which on the one hand ensure secure attachment, and with which on the other hand the inclination and orientation of the photovoltaic modules can be adjusted. For the purpose of transporting the energy supply unit according to the invention, the photovoltaic modules can be folded down so that they rest essentially flat on the top of the container.

The electricity generated by the photovoltaic system is stored in the accumulator, from where it can be fed to the first connection 30.1. from here it can be fed to the house distributor. Alternatively or additionally, the electricity generated by the photovoltaic system can also be fed directly to the first connection 30.1, i.e. it is not stored in the accumulator.

The accumulator can also provide electricity to "fill up" an e-car. Here, the accumulator can be coupled to a charging station. Alternatively or additionally, the electricity generated by the photovoltaic system can also be fed directly to the charging station, i.e. it is not stored in the accumulator. Appropriate facilities for this are also arranged in the container. Charging cables can be arranged on the outside of the container.

If the electrical current of the accumulator is fed both to the house distributor and to the charging station, then the accumulator should be dimensioned accordingly larger. It is advantageous here if the accumulator provides, for example, 10 kWh for the house distributor and a further 10 kWh for the charging station. In this case, the accumulator can be constructed in a modular manner in such a way that it has n (e.g. four) storage modules with a specific nominal capacity, with each storage module being able to be exchanged. In addition, the accumulator can be expanded with additional storage modules, for example if additional consumers are provided in the house or more than one electric car is to be charged at the same time.

The control of the system according to the invention is provided in such a way that first the storage modules for the house distributor are fully charged before the storage modules for charging the electric cars are charged. This means that the house distributor is treated with priority.

An accumulator with only one storage module can also be provided. In this case, the control of the system according to the invention is designed in such a way that an e-car can only be charged with the accumulator as long as a specific charging value of the accumulator is not reached is undercut. This also ensures that sufficient electrical energy can always be made available by the accumulator for the house distributor.

A control unit or control device 70 can be designed in such a way that it independently decides whether the electrical current provided by the photovoltaic system is fed to the accumulator and stored there, or whether the current is fed directly to the house distributor/charging station. For example, this control unit 70 can be designed in such a way that it treats the electrical consumers in the building with priority, i.e. when there is an increased demand for electrical energy, for example, the electricity generated by the photovoltaic system is not stored in the accumulator but fed directly to the house distribution board. Excess electricity, on the other hand, can be stored in the accumulator.

Furthermore, it is provided according to the invention that the electricity generated by the photovoltaic system (or part of the electricity generated by the photovoltaic system) is fed to the hydrogen system 40 . With the hydrogen system, hydrogen is generated, for example by means of water electrolysis, which requires electricity. The hydrogen generated by the hydrogen system is processed by means of a hydrogen treatment 43 in such a way that it can be used as fuel in the engine 50 of the system according to the invention. For example, during hydrogen processing, oxygen can be added to the hydrogen produced in order to obtain an optimal and homogeneous fuel mixture for engine 50, which can be a gas engine. Additionally or alternatively, the generated hydrogen can also be stored in hydrogen tanks.

The hydrogen system may be coupled to a hydrogen dispenser to refuel hydrogen-powered automobiles.

With the engine 50 powered by the hydrogen generated by the hydrogen system, the hot water treatment for the building is performed.

For example, the water circuit of the cooler of the gas engine can be used to supply thermal energy to the water circuit of the building via a heat exchanger. Alternatively or additionally, a heating element can also be operated with a generator that is operated by the gas engine, with which the water in the water tank 61 is heated. The water tank 61 is coupled to the water circuit of the building via a second connection 30.2.

Additionally or alternatively, the generator of the engine can also be coupled to the accumulator in order to charge the accumulator, for example when the photovoltaic system does not generate any electricity due to poor weather conditions or at night. The electric power generated by the engine can also be fed directly to the house distributor.

In addition, it is provided according to the invention that the electricity from the photovoltaic system (or part of the electricity generated by the photovoltaic system) can be used for hot water treatment. For this purpose, the photovoltaic system can be coupled directly to the hot water system, for example with one or more heating rods of the water tank, for heating the water in the water tank.

• - Das Photovoltaiksystem erzeugt elektrischen Strom, der im Akkumulator gespeichert wird, oder alternativ dem Hausverteiler zum Verbrauch zugeführt wird.
• - Erzeugt das Photovoltaiksystem überschüssige elektrische Energie, wird diese verwendet, um mit Hilfe des Wasserstoffsystems Wasserstoff zu erzeugen, der in einem Wasserstofftank gespeichert werden kann und bei Bedarf aus dem Wasserstofftank dem Motor als Treibstoff zugeführt werden kann. Darüber hinaus kann der von dem Photovoltaiksystem erzeugte überschüssige Strom für die Warmwasseraufbereitung verwendet werden.

With the components mentioned above, which are housed in the container, and the inventive interaction of the individual components (including the control required for this), a self-sufficient supply of electrical and thermal energy to a building is made possible, with the entire energy supply unit still being mobile. Connections to the public supply infrastructure are not required for either electrical or thermal energy. This self-sufficient supply of electrical and thermal energy to a building is made possible by the process described below:

• - The photovoltaic system generates electricity, which is stored in the accumulator or, alternatively, fed to the house distributor for consumption.
• - If the photovoltaic system generates excess electrical energy, this is used to generate hydrogen with the help of the hydrogen system, which can be stored in a hydrogen tank and, if required, can be fed from the hydrogen tank to the engine as fuel. In addition, the excess electricity generated by the photovoltaic system can be used to heat the water.

• - Liefert das Photovoltaiksystem keinen elektrischen Strom, wird der im Gebäude benötigte Strom vom Akkumulator bereitgestellt. Zusätzlich oder alternativ kann der benötigte Strom auch vom Generator des Motors bereitgestellt werden.
• - Liefert das Photovoltaiksystem keinen elektrischen Strom und unterschreitet die Temperatur des Wassers im Wasserstofftank eine vorbestimmte Minimaltemperatur, veranlasst die Steuereinrichtung das Starten des Motors, mit dessen Hilfe das Wasser in dem Wassertank erwärmt wird (entweder über den Generator, dessen elektrischer Strom zum Erwärmen von Heizstäben verwendet wird, und/oder über ein Wärmetauscher, der die Abwärme des Motors nutzt). Die von einem Generator des Motors bereitgestellte, elektrische Energie kann neben dem Erwärmen des Wassers auch zum Aufladen des Akkumulators verwendet werden.

The control device decides what the excess electricity from the photovoltaic system is used for. For example, if the water in the water tank has already reached maximum temperature, the controller can cause hydrogen to be generated with the excess electricity. The control can be adjusted here so that the water in the water tank is first brought to a maximum temperature before hydrogen is generated with the excess electricity from the photovoltaic system. Furthermore, the controller can be set so that in the event that the water in the tank has already reached the maximum temperature and the hydrogen tanks are full, the maximum permissible maximum temperature of the water in the water tank can be briefly increased in order to further heat the water with the excess electricity from the photovoltaic system. In addition, the excess electricity can be stored in the accumulator.

• - If the photovoltaic system does not supply electricity, the electricity required in the building is provided by the accumulator. Additionally or alternatively, the required power can also be provided by the engine's generator.
• - If the photovoltaic system does not supply electricity and the temperature of the water in the hydrogen tank falls below a predetermined minimum temperature, the control device causes the engine to start, with the help of which the water in the water tank is heated (either via the generator, whose electricity is used to heat heating elements is used and/or via a heat exchanger that uses the waste heat from the engine). The electrical energy provided by an engine generator can be used not only to heat the water but also to charge the accumulator.

Provision can also be made for the electrical energy stored in the accumulator to be used to heat the water in the water tank. This can be advantageous, for example, when the engine fails and the photovoltaic system does not supply any electricity and the minimum temperature of the water in the water tank is not reached. However, the likelihood of any conditions occurring that require the accumulator to heat the water is extremely low and this is only considered as a last resort.

The photovoltaic system essentially comprises a network of solar modules that are arranged on the top of the container. The direct current generated by the photovoltaic system is fed to an inverter, which converts the direct current into alternating current in a manner known per se.

The energy required for generating hydrogen is supplied to the hydrogen system by the photovoltaic system or the accumulator. The hydrogen system here essentially consists of a device 41 for generating hydrogen, for example by means of water electrolysis, a hydrogen tank 42 in which the generated hydrogen is stored, and a hydrogen treatment 43 with which the hydrogen stored in the hydrogen tank can be used as fuel in the Gas engine 50 is processed. As a rule, the control device is set in such a way that the electricity generated by the photovoltaic system is then used to produce hydrogen if this electricity does not have to be used elsewhere.

A gas engine is connected downstream of the hydrogen treatment, to which the treated hydrogen is fed as fuel. The gas engine is primarily intended to generate electricity by means of the generator, with which the water in a water tank can be heated, for example by means of heating rods. The controller of the energy supply unit according to the invention can be designed so that the water in the tank is heated by the generator in any case if the electrical current provided by the photovoltaic system is not sufficient for heating the water, or the photovoltaic system is not generating any electricity.

In order to increase the efficiency of the gas engine, it is also planned to couple the cooler of the gas engine to the water tank via a heat exchanger. The cooling liquid of the cooler is fed to the heat exchanger via a feed and a return, so that the thermal energy of the cooler or the cooling liquid can be transferred to the water in the water tank, with the water tank also being coupled to the heat exchanger via a corresponding feed and a return .

In addition, it can advantageously be provided that the exhaust gases from the gas engine are also used to heat the water in the water tank, as a result of which the overall efficiency of the gas engine is further improved. For this purpose, the exhaust gases emerging from the exhaust of the gas engine are fed to a condensing boiler. Typically, the temperatures of the exhaust gases are between 230°C and 270°C when they reach the condensing boiler. The exhaust gases are then fed to a filter system and from there led out of the container via an exhaust pipe.

In an advantageous embodiment of the condensing boiler, it has a housing with a pipe coil arranged therein. The tube can run spirally in the housing so that the largest possible tube surface is formed in the housing of the condensing boiler. The exhaust gases of the gas engine are fed into the pipe. The supplied exhaust gases are cooled in the housing and leave the housing at the other end of the tube at a temperature of between 40°C and 70°C.

The configuration of the gas engine according to the invention not only heats the water in the water tank via the generator, but also with the help of the cooler and the exhaust gases of the gas engine, so that the water is heated particularly efficiently.

As explained above, the gas engine is provided to heat the water in the water tank when the electrical current provided by the photovoltaic system is not sufficient to heat the water. However, it can be advantageous if the water in the water tank is heated both with the help of the gas engine and with the help of the electricity from the photovoltaic system, for example when hot water consumption is particularly high and the water temperature in the water tank is already close to the minimum water temperature or threatens to fall below the minimum water temperature. When which system (photovoltaic system or gas engine or both) is used to heat the water in the water tank is decided by the control device.

After appropriate rectification, the electric current generated by the generator can also be fed to the accumulator and stored there.

The control device is coordinated in such a way that sufficient electrical energy for the electrical consumers in the building and sufficient hot water (e.g. for heating in the building) is available at all times.

These two requirements are therefore met with the highest priority, i.e., for example, that electricity from the photovoltaic system is only used to produce hydrogen when the supply of electrical consumers in the building is sufficiently ensured.

The accumulator and the hydrogen tank can be dimensioned according to the requirements. Tests have shown that in a conventional 20-foot container (in addition to the other components) accumulators and a hydrogen tank can be accommodated, the dimensions of which can be chosen so that a building of a 4-person household can be supplied with electrical and thermal energy for up to 10 days be supplied, even if no solar energy is available for the photovoltaic system.

The mobile design of the energy supply unit also has the advantage that it can be connected to the building without structural changes. only breakthroughs for power and water lines have to be provided.

Reference List

G

Building, e.g. single-family house

1

mobile power supply unit

10

Container

11

Top of container 10

20

photovoltaic system

21

Photovoltaic modules of the photovoltaic system 20

22

Storage device for storing electrical energy

30.1

first connection of the container 10

30.2

second connection of the container 10

40

hydrogen system

41

hydrogen generating facility

42

hydrogen tank

43

hydrogen processing facility

50

engine

51

generator

60

hot water system

61

water tank

62

heating system

70

control device

Claims (10)

Mobile energy supply unit (1) comprising - a container (10), in particular a standard container, and - A photovoltaic system (20) for generating electrical energy, wherein - Photovoltaic modules (21) of the photovoltaic system (22) are arranged on an upper side (11) of the container (10), - The container (10) has a first connection (30.1), which is coupled directly or indirectly to the photovoltaic system (20), for connecting the container (10) to a building (G) in order to connect the building to the electrical energy take care of. Mobile power supply unit (1) after claim 1 , wherein this further comprises a storage device (22) for storing the electrical energy, wherein the storage device (22) is arranged inside the container (10) and is directly or indirectly coupled to the first connection (30.1). Mobile energy supply unit (1) according to any one of the preceding claims, wherein this further comprises a hydrogen system (40) arranged inside the container (10) and a motor (50), - the hydrogen system (40) having a hydrogen generating device (41) and a hydrogen tank (42) coupled thereto, and a hydrogen tank ( 42) comprises a coupled hydrogen processing device (43), wherein - the hydrogen generating device (41) is adapted to generate hydrogen, the hydrogen generated being stored in the hydrogen tank (42), and - the motor (50) being coupled to the hydrogen processing device (42). and the hydrogen processing device (43) is adapted to process the hydrogen stored in the hydrogen tank (42) for the engine (50), the engine being operated with the processed hydrogen. Mobile energy supply unit (1) according to one of the preceding claims, wherein this further comprises a hot water system (60) arranged inside the container, wherein the hot water system (60) comprises at least one water tank (61) with a heating system (62), the heating system ( 62) is adapted to heat the water held in the water tank (61), and wherein the container (10) has a second connector (30.2) coupled to the water tank (61) for connecting the container (10) to the building (G) to - to supply the building with hot water from the water tank (61) and/or - supply fresh water to the water tank (61). Mobile energy supply unit (1) according to one of claims 3 or 4 , wherein the engine (50) is associated with a generator (51) for generating electrical power, the generator being driven by the engine. Mobile energy supply unit (1) according to one of the preceding claims, which further comprises a control device (70) arranged inside the container for controlling the components, the components being the photovoltaic system (20), the storage device (22), the hydrogen system (40) , the engine (50) and the hot water system (60). Mobile energy supply unit (1) according to the preceding claim, wherein the control device (70) is adapted to control the components such that - the electrical current generated by the photovoltaic system is supplied to the heating system (62) in order to heat the water in the water tank (61), and/or - the electrical power generated by the photovoltaic system is supplied for storage in the storage device (22), and/or - the electrical power generated by the photovoltaic system or the electrical power stored in the storage device (22) is made available at the first connection (30.1), the electrical power stored in the storage device being made available at the first connection (30.1). , if the photovoltaic system does not supply sufficient electricity for the consumers connected to the first connection (30.1), and/or - the excess electrical current generated by the photovoltaic system is supplied to the hydrogen generation device (41) for generating hydrogen, and/or - The engine is supplied with hydrogen from the hydrogen tank (42) and the engine (50) is started in order to generate electricity with the generator (51), which is made available at the first connection (30.1) or in the storage device ( 22) is stored or fed to the heating system (62), and/or - the thermal energy of the engine is fed to the water tank via a heat exchanger. Mobile energy supply unit (1) according to one of the preceding claims, wherein the photovoltaic modules (21) of the photovoltaic system (22) are fastened to the container by means of a fastening device, the fastening device having adjusting means with which the inclination and/or orientation of the photovoltaic modules can be adjusted. Mobile energy supply unit (1) according to any one of the preceding claims, wherein the walls of the container have thermal insulation. Mobile energy supply unit (1) according to any one of the preceding claims, wherein the container has an access door.

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