JP2003235354A - Method for utilizing land - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for obtaining even an income with photovoltaic power generation besides an agricultural income by which the photovoltaic power generation besides agriculture is carried out while creating new agricultural land by regulating the quantity of light reaching the ground surface using a photovoltaic power generation apparatus as a light screening apparatus in land, etc., inadequate for agriculture and incapable of performing agricultural production itself due to conditions such as latitude or drying. <P>SOLUTION: The photovoltaic power generation apparatus 1 having functions also as the light screening apparatus is provided by arranging power generating elements in a reticulate form for regulating the sunlight reaching the ground surface, etc., as a method for utilizing the land. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of using a solar power generation device as a light shielding device to adjust the amount of sunlight reaching the surface of the earth to create an environment suitable for agriculture.

[0002]

2. Description of the Related Art Conventionally, agriculture has essentially been destined to be affected by natural conditions such as sunlight, precipitation and other weather conditions, geographical conditions, etc. In addition to the amount of land, there were many agriculturally unsuitable lands that could not be agriculturally produced due to conditions such as latitude and aridity, and most of these lands remained unused. Also, due to the recent remarkable economic development, the relative income of workers in agriculture, which must be said to be at a disadvantage in terms of natural economic and social conditions, is declining, and It is also true that the labor force is moving toward.

[0003]

[Problems to be Solved by the Invention] The prosperity in a highly developed civilized society, which we are finally in the palm of our hands, is based on the technology and ideas based on the civilization that the ancestors have built up over many trials. It is due to accumulation. By the way, looking back on the civilizations of the past that left us with a great heritage, it is an undeniable fact that in each of them there was a background of abundant agricultural productivity, and this is true even in our modern civilized society. It does not need to be said that the stability and expansion of agricultural production is inseparable to social stability and even prosperity. However, even now, in some areas, the stability of agricultural productivity, which is the foundation of this civilization, has not been secured, and this continues to be a major cause of various social unrest. It is a fact that cannot be obtained. The present invention has been made in view of these problems of the prior art, and an object thereof is to adjust the amount of sunlight reaching the ground surface by using a solar power generation device as a light shielding device. By doing so, in areas that are not suitable for agriculture due to conditions such as latitude and dryness, while performing solar power generation,
In addition to creating an environment suitable for agriculture, that is, farmland, even in areas where agriculture is already being carried out, in areas where more than the required amount of sunlight can be obtained, solar power generation is performed in addition to agriculture It is meant to provide a way to try to earn even more income.

[0004]

In order to achieve the above object, the present invention provides a method for utilizing land by using a solar power generation device as a shading device to adjust the amount of sunlight reaching the ground surface. Effectively, that is, to give a concrete example, by arranging the power generation elements of the photovoltaic power generation device installed at a height of several meters above the ground in a mesh pattern,
It has a function as a light-shielding device that adjusts the amount of sunlight, performs solar power generation with the solar power generation device, and performs agriculture, livestock farming, etc. with the sunlight that reaches the ground surface after being adjusted appropriately. That means to take.

[0005]

The solar power generation device, which is installed at a height of several meters above the ground and also has a function as a shading device, generates electricity. At the same time, the amount of sunlight is adjusted as a light shielding device. Furthermore, agriculture etc. will be performed on the surface of the earth with appropriately adjusted sunlight.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of an example in which a solar power generation device including photovoltaic power generation elements arranged in a mesh is used, and FIG. 2 shows the suns arranged in a checkered pattern. It is a perspective view of an example at the time of using the photovoltaic power generation device which consists of a photovoltaic power generation element. Moreover, what is shown in FIG. 3 is a perspective view of an example in which a solar power generation device including a transparent or semi-transparent solar power generation element having a light shielding property is used, and what is further shown in FIG. It is a perspective view of an example at the time of using the facility which has a closed structure which can intercept outside air in addition to using a photovoltaic device as a shading device.

FIG. 1 shows the procedure of the land use method according to the present invention.
(A) First of all, as a premise, the amount of sunlight more than necessary is required even on land that is considered unsuitable for agriculture due to conditions such as latitude and dryness, or in areas where agriculture is already being carried out. There is land available. (B) In order to create farmland or to make more effective use of farmland on these lands, install a photovoltaic power generator that also functions as a shading device at a height of several meters above the ground. . However, the ground height of the installation of the solar power generation device is adjusted to an appropriate height according to individual aspects such as agriculture performed on the land, regardless of the height described in the examples. (C) At this time, the degree of light-shielding property of the photovoltaic power generator that also functions as a light-shielding device is adjusted so that the amount of sunlight reaching the surface of the earth becomes an appropriate amount of light necessary and sufficient for agriculture. To do. (D) The installed solar power generation device generates electricity. (E) At the same time, the amount of sunlight is adjusted as a shading device. (F) The sunlight reaches the surface of the earth with an appropriately adjusted amount of light. (G) In addition, agriculture will be carried out on the surface of the earth with appropriately adjusted sunlight. Becomes

In FIG. 1, a solar power generation device 1 composed of solar power generation elements arranged in a mesh has a pillar 5 or is supported by a pedestal 5 with a pillar. Is installed. By arranging the power generation elements in a mesh pattern, the amount of sunlight can be easily adjusted. Then, the solar power generation device 1 that also has a function as a light shielding device performs power generation and, at the same time, functions as a light shielding device and adjusts the light amount of the sunlight 6. Further, agriculture 9 and the like are performed on the ground surface 8 by the appropriately adjusted sunlight 7. The arrangement of the mesh-shaped photovoltaic power generation elements is a shape suitable when the amount of sunlight is relatively large and it is desired to adjust the amount of sunlight reaching the ground surface to a small degree.

In FIG. 2, a solar power generation device 2 composed of solar power generation elements arranged in a checkered pattern has pillars 5 or is supported by a pedestal 5 with pillars. It is installed at the height. By arranging the power generation elements in a checkered pattern, the amount of sunlight can be easily adjusted. The solar power generation device 2 that also has a function as a light shielding device generates power, and at the same time functions as a light shielding device to adjust the amount of sunlight 6. Furthermore,
Agriculture 9 etc. are performed on the ground surface 8 by the appropriately adjusted sunlight 7. The checkerboard-like arrangement of the photovoltaic power generation elements is a shape suitable when the amount of sunlight is relatively small and it is desired to adjust the amount of sunlight reaching the ground surface to a large extent.

In FIG. 3, the power generating element itself is transparent or semitransparent and has light shielding properties, or the power generating element is embedded in a transparent or semitransparent material as a whole to have light shielding properties. A solar power generation device 3 including a solar power generation element has a pillar 5 or is supported by a pedestal 5 with a pillar, and is installed at a height of several meters above the ground. Since the power generation element is transparent or semitransparent and has a light shielding property, the amount of sunlight is adjusted. And the solar power generation device 3 which also has a function as a light-shielding device.
Generates electricity and at the same time acts as a shading device,
Adjust the light intensity of. Further, agriculture 9 and the like are performed on the ground surface 8 by the appropriately adjusted sunlight 7. In addition, the solar power generation device including the solar power generation element of this embodiment is shown in FIG.
In addition to the case shown in the above, it is suitable for the case where the degree of adjustment of the amount of light of sunlight is sufficiently known in advance and no adjustment of the amount of light is required thereafter.

In FIG. 4, in addition to adjusting the amount of sunlight reaching the surface of the earth using the solar power generation device shown in FIGS. 1, 2 and 3 as a shading device, a facility having the device is provided. By making the entire structure a closed structure that can block the outside air, it is possible to reduce the loss due to evaporation of water. Then, the solar power generation device 4, which also has a function as a light shielding device, generates electric power, and at the same time, functions as a light shielding device to adjust the light amount of the sunlight 6. Further, agriculture 9 and the like are performed on the ground surface 8 by the appropriately adjusted sunlight 7.
This method is suitable for dry areas where installation costs are rather high. The reason why a closed structure such as this is used despite the fact that the dry area is generally hot is that the dry area is extremely dry not only on the surface but also in the atmosphere. If the entire facility 10 that is incidental or that constitutes these is constructed as a closed structure that can block the outside air to the extent that it can be seen in a so-called vinyl house, the loss of water supplied for agriculture due to evaporation, etc. will be remarkable. This is because it can be reduced. Further, at this time, when the temperature rise inside the facility 10 having a closed structure becomes a problem, the temperature control device 11 such as a so-called air conditioner is installed by the electric power supplied from the solar power generation device 4. All you have to do is run it. Needless to say, the temperature adjusting device 11 can be useful for collecting the evaporated water at the same time as adjusting the temperature. In addition, this facility 10 has a door 12 so that the airtightness will not be impaired even if a person for agriculture or the like goes in and out.

[0012]

Since the present invention is configured as described above, it has the following effects.

Since the amount of sunlight reaching the surface of the earth can be easily adjusted by adjusting the distance between the solar power generation elements, it is possible to cope with various weather conditions and geographical conditions.

The electric power generated by the solar power generator is
In addition to general applications, it can be used as a power source for desalination facilities such as seawater and water transmission facilities in dry areas.

It is very preferable to perform solar power generation, which is said to emit a small amount of carbon dioxide, from the viewpoint of so-called global warming and other effects on the global environment. Further, by performing agriculture and the like, not only the agricultural products absorb carbon dioxide, but also the carbon dioxide is absorbed by the propagation of microorganisms in the soil.

The installed photovoltaic power generation device functions as a shading device, so that it can play a role of not only adjusting the amount of light but also protecting the land from drying. That is, in a dry area, the loss of the supplied water due to evaporation or the like can be reduced. In addition to this, if a closed structure that can block the outside air is used, the loss due to evaporation of water can be significantly reduced.

Since the installed photovoltaic power generator does not perform any action other than the photovoltaic power generation and the adjustment of the amount of light, it has almost no effect on the land and farmland, and unnaturally alters the providence of nature. There is no such thing.

[0018] In areas where it is considered unsuitable for agriculture due to latitude, dryness, etc., new farmland is created and solar power is generated to increase agricultural income from increased food production and income from solar power generation. Can be earned.

Further, even in areas where agriculture is already carried out, in areas where more sunlight than necessary can be obtained, the amount of sunlight is adjusted to obtain a light quantity suitable for the target agricultural product and Photovoltaic power is generated, which can generate not only agricultural income but also solar power income.

Therefore, according to the present invention, the combined use of solar power generation and agriculture leads to a dramatic increase in productivity, and the stabilization and expansion of agricultural production due to this is our civilization. It will make a great contribution to the peace and well-being of society and further development.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention when a photovoltaic power generation device including photovoltaic power generation elements arranged in a mesh is used as a light shielding device.

FIG. 2 is a perspective view of an embodiment of the present invention when a solar power generation device including solar power generation elements arranged in a checkered pattern is used as a light shielding device.

FIG. 3 is a perspective view of an embodiment of the present invention when a solar power generation device including a transparent or translucent solar power generation element having a light blocking property is used as a light blocking device.

[Fig. 4] In addition to using a solar power generation device as a shading device to adjust the amount of sunlight that reaches the surface of the earth, the entire facility that has the device has a closed structure that can block the outside air, reducing the loss due to evaporation of water etc. It is a perspective view of the Example of this invention when using the facility which enables it.

[Explanation of symbols]

1 ... Photovoltaic power generation device that also has a function as a shading device by arranging power generation elements in a mesh shape, etc. 2 ・ ・ ・ As a light shielding device by arranging power generation elements in a checkered pattern Photovoltaic power generator 3 that also has a function ... A photovoltaic power generator 4 that has a function of a light-shielding element that is transparent or semitransparent and has a function as a light-shielding device. Photovoltaic power generator 5 that also has the function of a light-shielding device that forms part of a facility that can reduce the loss of water due to evaporation etc.・ ・ Sunlight 7 ・ ・ ・ Sunlight after adjustment 8 ・ ・ ・ Ground surface 9 ・ ・ ・ Agriculture etc. 10 ・ ・ ・ Facilities 11 with solar power generators in a part of the entire facility・ Temperature control device 12 ... Door

Claims (5)

[Claims] 1. A method of using land by adjusting the amount of sunlight reaching the surface of the earth by using a solar power generation device as a shading device. 2. A method of utilizing land by adjusting the amount of sunlight reaching the surface of the earth using a photovoltaic device composed of photovoltaic elements arranged in a mesh as a shading device. 3. A method of utilizing land by adjusting the amount of sunlight reaching the surface of the earth using a photovoltaic device composed of photovoltaic elements arranged in a checkered pattern as a shading device. 4. A method of utilizing land by adjusting the amount of sunlight reaching the surface of the earth by using a solar power generation device composed of a transparent or translucent solar power generation element having a light shielding property as a light shielding device. 5. In addition to adjusting the amount of sunlight reaching the surface of the earth by using a solar power generation device as a shading device, the entire facility having the device is provided with a closed structure capable of blocking the outside air so that disappearance due to evaporation of moisture or the like occurs. How to use land by making it possible to reduce it.