More space, more stable output, vertically installed solar panels

author: SUNPRO POWER Marketing

2023-02-03

As the global New Year season draws to a close,

In February 2023,

The first weekend will usher in the solar term - the beginning of spring,

Agricultural activities have revived.

After the fluctuation of energy prices last year,

Many farms have also begun to pay attention to the introduction of agricultural photovoltaic,

Share solar energy facilities with farmland,

The generated clean energy can reduce the cost of agricultural electricity,

At the same time, it will not affect the land use.

But for the direct sunlight angle,

The traditional installation mode mostly adopts the inclined angle installation mode.

Although this can guarantee the power generated,

However, it also increases the land area.

Doing so on limited agricultural land will reduce agricultural income in disguised form.

Therefore, more and more regions are beginning to adopt the elevated installation method,

That is, agricultural activities are carried out under the solar panels,

Make room for agricultural equipment or livestock to move freely below.

This can effectively use the land area,

However, the corresponding cost of accessories will increase a lot,

Therefore, in addition to this common way,

Another installation method has become a hot research direction.

Freer installation mode - vertical installation

Vertical agricultural photovoltaic devices.

Place the solar panels vertically to leave a wide open space.

For example, the University of Mälardalen in Sweden is doing similar research.

This is a simple installation method.

Use the holes in the component frame to simply connect the two piles without the need for a heavy support system.

Double-sided solar modules generate electricity on both sides of the vertically oriented array.

This installation method allows you to use different components for matching installation,

By adjusting the distance between each component, to easily adapt to changes in panel size.

If necessary, you can also adjust the height of the component from the ground.

Of course, this is not the best way to install.

According to the current technology, this practice will reduce the electricity generated.

For example, suppose that the double-sided coefficient of a solar module is 90%,According to the conventional installation method, the annual power generation is 999 Wh/W,Then the annual power generation of the north-south vertical system is 926 Wh/W

It is obviously lower than the conventional power generation.

Reduce the power rejection rate of solar energy

Although for some people, 70% of vertical power generation seems not ideal,

But even lower power can have beneficial effects

If a farmer just wants to reduce the cost of electricity,

When this approach can produce more stable income,

Maybe it can make people ignore the reduced production of electricity.

Scientists at Leipzig University of Applied Science and Technology

Large-scale deployment of vertical photovoltaic systems in German power plants,

It was used to study the potential impact on power generation,

and the results were unexpected.

They found that compared with traditional terrestrial photovoltaic power stations,

A vertical system can have a beneficial impact on the stability of the national grid,

At the same time, greater integration with agricultural activities is allowed.

Vertical photovoltaic system can improve the utilization rate of solar power generation,

More power supply can be provided in winter,

So as to reduce the waste rate of solar energy*

* Referring to the waste caused by the power generation greater than the storage capacity and power demand of the power plant.

More stable power output

Niigata, famous for its high snow load area,

The snow thickness in winter is as high as 2-3 meters.

A local factory has adopted a vertical photovoltaic system,

Verified that solar energy can be more stable in winter

This system can make more efficient use of the extra energy generated by the reflection of snow.

At the same time, reduce the impact of snow cover on power generation.

In addition,

More efficient HJT components are used to supplement the shortage of power generation and production reduction,

Power the rice processing plant next to the system.

The local government also provided support of 2 million yen (14390 US dollars) for the project.

It is planned to promote this model in local agricultural areas.

A way that is more conducive to crop growth

The illumination rate is far higher than that of overhead installation

It is an important indicator for selecting vertical installation, for agriculture.

It only occupies the minimum space of farmland,

At the same time, more than 85% of the light reaches the crops,

Ensure the best balance between solar energy and agriculture,

This can make wheat, potato or rice and other photophilic crops grow

Large-scale establishment of agricultural photovoltaic system

Mälardalen University also analyzed the area illumination blocked by the module through the data model.

← PV module assembly under CFD model Source: Mälardalen University

In the ground area covered by vertical PV modules,

The solar radiation intensity decreased by 38%.

Comprehensive installation area and shadow area

The influence of light is less than that of traditional and elevated installation.

This is crucial for the introduction of agricultural photovoltaic in the narrow farmland.

More efficient modules

If you are considering introducing agricultural PV,

Vertical installation may be a good way,

As in the above case,

The use of efficient solar modules can supplement the short board of power generation,

Correspondingly, the purchase quantity of modules can also be reduced,

High-quality modules can extend the service life and generate more benefits.

Here, SUNPRO recommends the use of this HJT module,

bifacial Transparent,

SP-144DSNxxx

The maximum power is 480W, HJT module, mono-crystalline silicon battery.
Multi busbars design, the conduction efficiency is better, and the maximum efficiency can reach 22.08%.
Double glass, bifacial Transparent, bifaciality > 95%, improve power generation efficiency, reduce the probability of PID, delay aging, improve flame retardant performance, and make it easier to clean
Quiet operation, no need to worry about noise pollution.
Flexible installation, both on the ground and roof, and effective use of space. It is a good choice to install on the factory roof.
No additional raw materials, no emissions, 12 hours a day, power generation all year round.
Longer service life, 15-year warranty, 30-year performance guarantee.
Strong environmental pressure resistance, able to withstand 2400pa wind pressure and 5000Pa snow pressure, fearless of wind and sand.
SUNPRO POWER has TUV, CE, ISO and other international quality certification and fire prevention certification to ensure that the product is put into efficient operation.