KR102253759B1 - Ess embedded photovoltaic system capable of volumetric expansion - Google Patents

Abstract

An ESS embedded photovoltaic generation system capable of volumetric expansion according to the embodiments of the present invention includes: a body unit configured in a modular form for defining an accommodating space therein, and stretched in a length direction to expand the accommodating space; an energy storage unit installed in the body unit; and a photovoltaic generation unit rotatably installed on an outer side of the body unit, and electrically connected to the energy storage unit and configured to supply electric energy produced through sunlight to the energy storage unit. According to the embodiments of the present invention, the body unit for accommodating the energy storage unit is formed in the modular form capable of expanding a space, thereby facilitating the installation and movement to other spaces, the size of the installation space is adjustable according to the place to be installed, thereby maximizing the space utilization performance, and a cover is used to seal the expanded portion, thereby preventing invasion of wild animals.

Description

ESS built-in photovoltaic power generation system with volume expansion {ESS EMBEDDED PHOTOVOLTAIC SYSTEM CAPABLE OF VOLUMETRIC EXPANSION}

The present invention relates to an ESS-embedded photovoltaic power generation system, and more particularly, to an ESS-embedded photovoltaic power generation system capable of volume expansion to enable volume expansion.

As the depletion of petroleum resources and the dangers of nuclear energy have emerged, interest and research on new and renewable energy are increasing significantly.At the same time, energy storage systems for using renewable energy such as solar power generation and wind power generation (Energy Storage System, ESS) is required to be developed.

The energy storage system is a battery device for storing electrical energy produced using renewable energy such as sunlight, and a power control system (PCS) for supplying electrical energy stored in the battery device by controlling these battery devices. ), etc., and by always supplying electric energy to a place where electricity is needed, there is an advantage of improving energy use efficiency and inducing stabilization of the power supply system.

Therefore, if such an energy storage system is applied to various types of consumer groups (industrial complexes, commercial buildings, apartment houses, etc.) where power is used frequently, it is possible to prevent large-scale power outages even during periods when power consumption is concentrated. Of course, there is an advantage that can significantly lower the electricity bill.

However, the conventional energy storage system structurally requires a large space, so it is not suitable for installation in places where the installation space is relatively small, such as industrial complexes, commercial buildings, apartment houses, etc., and is expanded or moved once installed. There was this difficult problem.

Therefore, there is a need to develop a new energy storage system.

The present invention was conceived to solve the above problems, and an object of the present invention is that the energy storage system (ESS) can be stably accommodated and protected, as well as easy installation and space utilization. It is to provide an ESS built-in solar power system that can be expanded in volume.

The subject of the present invention is not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

Features of the present invention for achieving the above object,

A body portion formed in a module shape forming an accommodation space inside and extending along a width direction to expand the accommodation space; An energy storage unit installed in the main body; And a photovoltaic power generation unit that is rotatably installed outside the body unit and is electrically connected to the energy storage unit to supply electric energy generated through sunlight to the energy storage unit, wherein the body unit is inside A first receiving body that is formed in a structure that is separated left and right around the length direction to have an expansion space, has doors at both ends, and is rotatably installed on the outside of the photovoltaic power generation unit to adjust the size of the expansion space. Wow; A support plate installed on an inner bottom surface of the first receiving body and adjusting a moving distance of the first receiving body; And a second receiving body fixed to an upper surface of the base plate, accommodated inside the first receiving body, and having the energy storage unit installed therein.

Here, a guide portion configured to guide the movement of the first receiving body is provided between the first receiving body and the support plate.

Here, also, the support plate is provided with a moving part to move the first receiving body in the width direction.

Here, the first receiving body is provided with a rolling unit on the bottom of which the first receiving body is in contact with the ground to perform a rolling motion.

Here, the first receiving body is installed so that each upper panel is rotatable in a vertical panel, and the photovoltaic power generation unit is rotatably installed on the inner and outer sides of the upper panel and on the outer side of the vertical panel, respectively.

Here, the main body portion is provided on the inside of the second receiving body to support the lower surface of the energy storage unit seismic isolator; And a seismic-proof unit installed inside the second receiving body to support a side surface of the energy storage unit.

Here, the energy storage unit includes an electric energy storage unit configured to store and supply electric energy; It is electrically connected to the solar power generation unit and the electric energy storage unit to charge the electric energy produced from the solar power generation unit to the electric energy storage unit, or to the outside together with the electric energy stored in the electric energy storage unit. A power control unit configured to be supplyable; And an energy management unit electrically connected to the electric energy storage unit and the power control unit to control and monitor the electric energy storage unit and the power control unit.

Here, the photovoltaic power generation unit and a hinge portion installed in the main body; It includes a plurality of solar modules that are individually rotatably installed on the hinge.

Here, the volume expansion-capable ESS built-in solar power generation system is installed on both sidewalls of the second receiving body, and circulates the internal air of the second receiving body, or An air conditioning unit configured to adjust the temperature; It further includes an auxiliary solar power generation unit installed on the upper side of the second receiving body and capable of additionally producing electric energy by absorbing sunlight when the second receiving body protrudes to the outside of the first receiving body.

According to an embodiment of the present invention, as the body portion accommodating the energy storage unit is formed in a module shape capable of expanding space, it is easy to install and move to other spaces, and the size of the installation space can be adjusted according to the place to be installed Thus, space utilization performance can be maximized.

In addition, according to the present invention, after the volume of the main body is expanded, the door is opened while the upper wall is rotated 180° to support the upper wall, and the solar panel is unfolded from the inside of the upper wall so that the solar module increases when the main body is expanded. Thus, it is possible to increase the electrical energy production efficiency.

It is possible to prevent damage to the main body by preventing wild animals from invading the inside of the main body.

In addition, according to the present invention, the energy storage unit can be stably accommodated and protected by a vibration-proof means for protecting the energy storage unit from external shocks by supporting the lower surface and the side surface of the energy storage unit inside the body unit.

1 is a perspective view schematically showing an ESS built-in solar power generation system capable of expanding the volume according to the present invention.
2 is a front view schematically showing an expanded state of the ESS built-in solar power generation system capable of volume expansion according to the present invention.
Figure 3 is a partial side cross-sectional view schematically showing the internal structure of the ESS built-in solar power generation system capable of expanding the volume according to the present invention.
4 is a perspective view schematically showing a state in which the volume of the solar power generation system with built-in ESS capable of expanding the volume according to the present invention is expanded.
5 is a view schematically showing a state in which the solar module of the solar power generation system with built-in ESS capable of expanding the volume according to the present invention is deployed.

Hereinafter, various embodiments will be described in more detail with reference to the accompanying drawings. The embodiments described herein may be variously modified. Certain embodiments may be depicted in the drawings and described in detail in the detailed description. However, specific embodiments disclosed in the accompanying drawings are only intended to facilitate understanding of various embodiments. Therefore, the technical idea is not limited by the specific embodiments disclosed in the accompanying drawings, it is to be understood as including all equivalents or substitutes included in the spirit and scope of the invention.

Terms including ordinal numbers such as first and second may be used to describe various elements, but these elements are not limited by the above-described terms. The above-described terms are used only for the purpose of distinguishing one component from other components.

In the present specification, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance. When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. It should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

Meanwhile, a "module" or "unit" for a component used in the present specification performs at least one function or operation. In addition, the "module" or "unit" may perform a function or operation by hardware, software, or a combination of hardware and software. In addition, a plurality of "modules" or a plurality of "units" excluding "module" or "unit" to be performed in specific hardware or performed by at least one processor may be integrated into at least one module. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In addition, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be abbreviated or omitted.

FIG. 1 is a perspective view schematically showing an ESS built-in solar power generation system capable of volume expansion according to the present invention, and FIG. 2 is a front view schematically showing an expanded state of an ESS built-in solar power generation system capable of volume expansion according to the present invention. 3 is a partial side sectional view schematically showing the internal structure of the ESS-embedded solar power generation system capable of volume expansion according to the present invention, and FIG. 4 is a volume of the ESS-embedded solar power generation system capable of volume expansion according to the present invention. Is a perspective view schematically showing an expanded state, Figure 5 is a view schematically showing a state in which the solar module of the solar power generation system built-in ESS capable of expanding the volume according to the present invention.

1 to 5, the ESS built-in solar power generation system 100 capable of expanding the volume according to the present invention includes a body portion 110.

The main body 110 is formed in the form of a movable module. Accordingly, the main body 110 may be moved to another location as necessary, and the installation structure may be changed.

In addition, the body portion 110 is formed in a polyhedral structure, and a predetermined accommodation space capable of accommodating an energy storage portion 120 to be described later is formed inside the body portion 110. For example, the main body 110 may be formed by combining a plurality of panels with each other. Accordingly, the main body 110 may be changed and applied in various sizes and shapes as necessary.

In addition, the body portion 110 is configured to extend along the width direction to expand the accommodation space.

1 to 3, the main body 110 is installed on the ground so as to be expandable in the width direction, the first receiving body 111 and the inside of the first receiving main body 111 expandable in the width direction It may include a base plate 112 installed on and a second receiving body 113 installed on the upper surface of the base plate 112.

The first receiving body 111 is formed in a structure that is separated from the left and right around the longitudinal direction so as to have an expansion space inside, and has doors 1111 at both ends, and a photovoltaic power generation unit to be described below on the outside ( 130) is installed to be rotatable. At this time, the door 1111 is rotated to support the upper panel 1112 of the first receiving body 111.

In addition, when the first receiving body 111 is expanded in the width direction, an expansion space communicating with the receiving space may be formed inside. In addition, the first receiving body 111 may have a larger length than the second receiving body 113 so that the second receiving body 113 can be completely accommodated inside. In addition, the width of the first receiving body 111 may have a larger size than the height of the first receiving body 111. Accordingly, it can be installed on the ground more stably by increasing the ground area with the ground. In addition, the first receiving body 111 may slide along the width direction in the support plate 112 to be described below through external manipulation. Accordingly, the first receiving body 111 can selectively adjust the size of the expansion space.

In addition, the first receiving body 111 is installed so that each upper panel 1112 is rotatable by a hinge portion H in the vertical panel 1113, and the inner and outer sides of the upper panel 1112 and the vertical panel 1113 ) On the outside, each solar power generation unit 130 is installed so as to be rotatable.

The base plate 112 is installed on the inner bottom surface of the first receiving body 111 and adjusts the moving distance of the first receiving body 111. At this time, the base plate 112 is preferably made of a precast concrete panel or a steel frame structure to support the load of the second receiving body 113.

The second receiving body 113 may be accommodated inside the first receiving body 111.

In addition, the above-described accommodation space may be formed inside the second receiving body 113 so that the energy storage unit 120 may be installed.

Here, as shown in FIG. 3, a guide part 1114 for guiding the movement of the first receiving body 111 may be provided between the first receiving body 111 and the support plate 112.

The guide portion 1114 may be formed in the form of a rail and a groove so that a pair may be installed. In this case, a wheel may be selectively installed in place of the groove.

In addition, referring to FIGS. 2 and 3, a rolling part 1115 may be provided on the bottom of the first receiving body 111 to perform a rolling motion by contacting the ground when moving.

The rolling part 1115 not only supports the load of the first receiving body 111, but also performs a rolling motion when the first receiving body 111 is moved, so that the first receiving body 111 can be moved more quickly. . For example, the rolling part 1115 may be formed in the form of a roller or a wheel.

Further, the support plate 112 is provided with a moving part 1121 to move the first receiving body 111 in the width direction. At this time, it is preferable that hydraulic, pneumatic, and electric cylinders are applied to the moving part 1121.

In addition, the support plate 112 may further include a gap compensation portion 114 for supporting the second receiving body 113 on the ground.

In more detail, the gap compensation part 114 is installed vertically from the edge of the base plate 112 toward the ground, and when the first receiving body 111 is extended and the base plate 112 is exposed, it is extended in the vertical direction. While compensating for the gap between the bottom surface of the base plate 112 and the ground, the load acting in the vertical direction on the second receiving body 113 is distributed to the ground by supporting the base plate 112 and the second receiving body 113 I can make it. For example, the gap compensation unit 114 is preferably a hydraulic, pneumatic, electric cylinder is applied.

In addition, the main body 110 may further include a seismic isolation unit 115 and an earthquake isolation unit 116 for supporting the energy storage unit 120 installed therein.

The seismic isolating unit 115 is installed inside the second receiving body 113 and configured to support the lower surface of the energy storage unit 120, and the seismic isolating unit 116 is installed inside the second receiving body 113 It may be configured to support the side of the energy storage unit 120.

Accordingly, when an impact is applied to the body unit 110 from the outside, the seismic isolating unit 115 and the seismic isolating unit 116 absorb and disperse the impact to prevent the impact from being transmitted to the energy storage unit 120.

For example, the seismic isolating unit 115 is formed of an elastic material such as rubber or silicon, and is installed around the first elastic member and the first elastic member supporting the lower surface of the energy storage unit 120, in the form of a coil spring. It may include a second elastic member that is formed to elastically support the lower surface of the energy storage unit 120. The earthquake-proof unit 116 includes a first link member rotatably connected to the side of the energy storage unit 120, a second link member rotatably connected to the inner side of the second receiving body 113, and a first link. It may include an elastic member rotatably connected to the member and the second link member and elastically supporting the first link member and the second link member to each other. However, the seismic isolator 115 and the seismic isolator 116 are not necessarily limited thereto, and may be changed and applied in various forms within a condition capable of performing the same function.

In addition, the main body 110 may further include an elevating unit 117 installed on the outer surface of the first receiving main body 111 to lift the first receiving main body 111.

The elevating part 117 is installed at a plurality of positions along the circumference of the first receiving body 111 and may be raised or lowered integrally or individually. Accordingly, when it is necessary to adjust the height of the body part 110 or when the ground to be seated is not flat, the lifting part 117 may be integrated or individually driven to keep the body part 110 in a horizontal state at all times.

For example, the lifting unit 117 is a tubular receiving unit installed on the outer surface of the first receiving body 111, a support unit accommodated in the receiving unit and supported on the ground through the lower end, and the support unit protruding from the receiving unit through hydraulic pressure. It may include a power unit to let. Here, the receiving portion may be rotatably installed on the outer surface of the first receiving body 111 by a predetermined angle, and the end of the supporting portion supported on the ground may be provided in a rotatable state according to the shape of the ground.

In addition, the present inventors' volume expansion is possible ESS built-in solar power generation system 100 includes an energy storage unit 120 (Energy Storage System, ESS).

2 and 3, the energy storage unit 120 is installed inside the second receiving body 113 provided in the body unit 110, and produced from the solar power generation unit 130, which will be described below. It is configured to store the stored electrical energy and supply the stored electrical energy to the outside.

Specifically, the energy storage unit 120 includes an electric energy storage unit 121 (Battery Energy Storage, BES), a power control unit 122 (Power Conditioning System, PCS), and an energy management unit 123 (Energy Management System, EMS).

The electric energy storage unit 121 may be configured to store and supply electric energy. For example, the electric energy storage unit 121 may include a lithium polymer battery, a battery management system (BMS), and a power control module (PCM).

The power control unit 122 is electrically connected to the solar power generation unit 130 and the electric energy storage unit 121, and charges the electric energy produced from the solar power generation unit 130 to the electric energy storage unit 121 Alternatively, the electric energy produced from the solar power generation unit 130 may be supplied to the outside together with the electric energy stored in the electric energy storage unit 121.

The energy management unit 123 is electrically connected to the electric energy storage unit 121 and the power control unit 122 to control and monitor the electric energy storage unit 121 and the power control unit 122 at the same time.

In addition, the present inventors ESS built-in solar power generation system 100 capable of volume expansion includes a photovoltaic power generation unit (130).

2 and 3, the photovoltaic power generation unit 130 is rotatably installed outside the body unit 110. In addition, the solar power generation unit 130 is electrically connected to the energy storage unit 120 to supply electric energy generated through sunlight to the energy storage unit 120.

The solar power generation unit 130 may include a hinge unit (H) and a plurality of solar modules (M).

The hinge portion (H) is a cylindrical shaft member having a length corresponding to the length of the first receiving body 111, the outer one end, the inner other end and the vertical panel of the upper panel 1112 of the first receiving body 111 The photovoltaic power generation unit 130 may be installed to be rotatable, respectively, in the outer central portion of 1113.

A plurality of photovoltaic modules (M) is individually rotatably installed on the hinge portion (H) can maintain a preset angle.

Here, the plurality of photovoltaic modules (M) is a first photovoltaic module (M1) that can be rotated at a preset angle from the side of the vertical panel 1113, and the upper panel (1112) It may include a second photovoltaic module (M2) and a third photovoltaic module (M3).

In more detail, the first photovoltaic module M1 may be rotated by an angle within 45° so that it does not interfere with the second photovoltaic module M2 from the side of the vertical panel 1113 around the hinge part H. In addition, the second solar module M2 can be rotated by an angle maintaining 90° perpendicular to the ground from the outer one end of the upper panel 1112 around the hinge portion H, and the third solar module M3 may be rotated by an angle within 180° horizontally from the inner other end of the upper panel 1112 with the hinge portion H as the center.

Accordingly, the solar power generation unit 130 may maintain the most efficient angle for absorbing sunlight in real time according to the position of the sun.

For example, each photovoltaic module (M) may include a photovoltaic panel capable of absorbing sunlight and converting it into electrical energy, and a connection member provided on one side of the photovoltaic panel and rotatably installed on the hinge part (H). have.

In addition, the third solar module M3 may be formed in an expandable structure.

Referring to FIG. 4, the third solar module M3 may be provided in a state in which two solar panels are folded through a hinge. Accordingly, the third solar module M3 can be expanded more widely as the two solar panels are deployed. Accordingly, the electric energy production efficiency can be further improved.

In addition, although not shown in the drawings, the solar power generation unit 130 may further include a rotation unit capable of rotating the plurality of solar modules M.

The rotating unit is accommodated inside the first receiving body 111 and is mechanically connected to the plurality of solar modules M, respectively, and generates a rotational force to rotate the plurality of solar modules M at a preset angle. .

For example, a plurality of rotating parts may be provided and each may be connected to a plurality of solar modules (M). In addition, each rotation unit may include a motor that generates a rotational force, and a driving gear coupled to a front end of the motor and engaged with a gear unit provided in the plurality of solar modules (M). However, the rotating part is not necessarily limited thereto, and may be changed and applied in various forms within a condition capable of performing the same function.

In addition, the photovoltaic power generation unit 130 may be provided in plural in the body unit 110.

In more detail, as shown in FIG. 3, the photovoltaic power generation unit 130 includes a plurality of corner portions provided on the upper side of the body portion 110 so that they may be disposed opposite to each other along the width direction of the body portion 110. Can be installed on each.

In addition, the present inventors can expand the volume of the ESS built-in solar power generation system 100 may further include an air conditioning unit 140 and an auxiliary solar power generation unit 150.

2 and 3, the air conditioning unit 140 may be installed on both side walls of the second receiving body 113. In addition, the air conditioning unit 140 may circulate the internal air of the second receiving body 113 or may adjust the temperature of the internal air of the second receiving body 113.

The auxiliary solar power generation unit 150 may be installed on the upper surface of the second receiving body 113. Accordingly, when the first receiving body 111 is expanded and the second receiving body 113 is exposed, the auxiliary solar power generation unit 150 additionally absorbs solar light together with the photovoltaic power generation unit 130 It can produce additional electric energy.

For example, the auxiliary photovoltaic power generation unit 150 is provided under the photovoltaic panel (M) and photovoltaic panel (M) capable of absorbing sunlight and converting it into electrical energy, and is installed on the upper surface of the second receiving body (113). It may include a supporting member (not shown).

As described above, according to an embodiment of the present invention, as the body unit 110 accommodating the energy storage unit 120 is formed in a module shape capable of expanding space, it is easy to install and move to another space, as well as a place to be installed. Depending on the size of the installation space can be adjusted, the space utilization performance can be maximized.

In addition, the energy storage unit 120 is stably provided with a vibration-proofing means for protecting the energy storage unit 120 from external shock by supporting the lower surface and the side surface of the energy storage unit 120 inside the body unit 110. It can be accommodated and protected.

In addition, a plurality of photovoltaic modules (M) capable of angle adjustment are provided on the outside of the body part (110), and the photovoltaic module (M) is increased when the body part (110) is expanded, thereby producing electric energy. It can increase the efficiency.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and the present invention is generally in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, various modifications may be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or perspective of the present invention.

110: main body 111: first receiving body
112: base plate 114: second receiving body
113: mask 114: gap compensation unit
115: seismic isolation unit 116: seismic isolation unit
117: lifting unit 120: energy storage unit
121: electric energy storage unit 122: power control unit
123: energy management department 130: solar power generation department
140: air conditioning unit 150: auxiliary solar power generation unit

Claims (9)

A body portion formed in a module shape forming an accommodation space inside and extending along the width direction to expand the accommodation space;
An energy storage unit installed in the main body; And
It is rotatably installed on the outside of the main body and is electrically connected to the energy storage unit to supply electric energy generated through sunlight to the energy storage unit, and a hinge unit installed in the main unit and the hinge unit Including first to third photovoltaic modules that are individually rotatably installed, wherein the first photovoltaic module has an angle within 45° so as to be non-interfering with the second photovoltaic module from the side of the vertical panel around the hinge part And the second solar module is rotated by an angle maintaining 90° perpendicular to the ground from the outer one end of the upper panel around the hinge, and the third solar module includes two solar panels. It is provided in a folded state through a hinge, and includes a solar power generation unit in which two solar panels are deployed and expanded by rotating by an angle within 180° horizontally from the inner other end of the upper panel around the hinge,
The body part,
It is formed in a structure that is separated left and right around the length direction so as to have an expansion space inside, and a door is provided, and the photovoltaic power generation unit is rotatably installed on the outside to adjust the size of the expansion space, and the ground on the bottom surface A rolling unit that is in contact with and performs a rolling motion is provided, and each upper panel is installed to be rotatable in a vertical panel, and the photovoltaic power generation unit is installed to be rotatable on the inside and outside of the upper panel and on the outside of the vertical panel, respectively, And a first receiving body in which the door is rotated to support the upper panel;
It is manufactured in a precast concrete panel or a steel frame structure to support the load and is installed on the inner bottom of the first receiving body, adjusting the moving distance of the first receiving body, and moving the first receiving main body in the width direction. A support plate provided with a so as to move part;
A guide part installed between the first receiving body and the support plate to guide the movement of the first receiving body;
A second receiving body fixed to an upper surface of the base plate, accommodated inside the first receiving body, and having the energy storage unit installed therein;
A seismic isolation unit installed inside the second receiving body to support a lower surface of the energy storage unit; And
It is installed inside the second receiving body further comprises a seismic resistant portion for supporting the side of the energy storage,
The base plate,
A gap compensation part for supporting the second receiving body on the ground is provided, and the gap compensation part is installed vertically from an edge of the base plate toward the ground, and the first receiving body is extended to expose the base plate in a vertical direction. It is extended to compensate for the gap between the bottom surface of the base plate and the ground, and at the same time, supports the base plate and the second receiving body to distribute a load acting in a vertical direction on the second receiving body to the ground. Expandable ESS built-in solar power system delete delete delete delete delete The method of claim 1,
The energy storage unit,
An electric energy storage unit configured to store and supply electric energy;
It is electrically connected to the solar power generation unit and the electric energy storage unit to charge the electric energy produced from the solar power generation unit to the electric energy storage unit, or to the outside together with the electric energy stored in the electric energy storage unit. A power control unit configured to be supplyable; And
An ESS built-in photovoltaic power generation system with volume expansion, characterized in that it comprises an energy management unit configured to control and monitor the electric energy storage unit and the power control unit by being electrically connected to the electric energy storage unit and the power control unit. . delete The method of claim 1,
The ESS built-in solar power generation system capable of expanding the volume,
An air conditioning unit installed on both sidewalls of the second receiving body and configured to circulate the internal air of the second receiving body or to adjust the temperature of the internal air of the second receiving body;
It characterized in that it further comprises an auxiliary solar power generation unit that is installed on the upper side of the second receiving body and capable of additionally producing electric energy by absorbing sunlight when the second receiving body protrudes to the outside of the first receiving body. ESS built-in solar power system that can be expanded in volume.

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