The solar power plant has a complex structure and innovative elements. On average, its service life is 25 years. To achieve this, it is best to buy directly from manufacturers, select quality items and have them checked at service centers.

Main elements:

Solar panels;

Inverter. It is necessary to convert the incoming current into alternating current;

Controller for monitoring the fullness of the battery;

Battery for accumulating and transmitting current;

Without the combination of these components, it is impossible to convert energy into electricity. The panels themselves differ in power and size.

They are divided into the following categories:

Monocrystalline. Feature - durable housing and preventing moisture from entering the system;

Thin film. Popular for easy installation;

Polycrystalline. Monocrystalline analogs. Feature - silicon for the base.

Pros of choosing to buy from the factory:

Lower price due to direct sale, without wrapping up from sellers;

Low risk of getting a bad product;

In rare cases of factory defects, quick replacement of components;

Consultation with specialists.

Thanks to these advantages, many have already chosen to buy from the manufacturer.

An important factor is also the savings on electricity, which allows for 25 years of operation of the station, recoup the initial costs of its purchase.

Commissioning of solar power plants

It is recommended that a complete audit be carried out during commissioning of the installation to ensure that the entire system meets the required levels of quality, performance and safety. sunlife The audit can also identify risks and issues that could affect the performance of the plant, which could lead to negative consequences for the profitability and efficiency of the project.

The international standard IEC 62446 of photovoltaic systems connected to the mains - the minimum requirements for system documentation and tests that are required at the beginning of operation. The following tests are recommended in every facility adhering to this standard.

Be sure to check:

The integrity of the equipment grounding conductors and the system grounding conductors.

The polarity of all DC cables and the correct identification and connection of the cables.

Open circuit voltage [Voc] for each PV source circuit.

Short circuit current [Isc] for each PV source circuit.

The operability of the main components (switchgear, controls, inverters), including the anti-insulating inverter.

Insulation resistance of conductors of a DC circuit

GWS-ENERGY has a professional team and technical equipment to perform and verify commissioning tests.

Design of solar power plants

Designing solar power plants only seems to be a simple task, it should be done by specialists. The computer model allows you to get a visual picture of the future station and location. The modes of its use and options of operation are taken into account, all parameters of the station are calculated.

Model building solves several problems at once. All calculations are carried out taking into account the long service life of the station, as a rule, it is 25-30 years. It is necessary to break even the power plant, to determine the minimum terms for which it will pay off. It is important to perform all calculations with the highest accuracy, since any errors in calculations and model building can lead to a significant decrease in efficiency. Solar Energy in Pakistan At the same time, even minimal investments in the optimization of the primary project can significantly increase energy efficiency, and this, ultimately, will have a positive effect on profits.

Main components

1. Solar panel

2. Inverter

3. Central network

Supporting components

1. DC junction boxes

2. AC buses (switches)

3. Control panel

4. Cables

5. Mounting structures

6. Grounding and lighting

7.SCADA (Supervisory Control and Data Acquisition System)

8. Water supply and fencing and perimeter roads.

What you need to know about the installation site:

1) Location

2) Area

3) Infrastructure

4) Aspects of the environment such as fauna, health risks, archaeological and historical significance.

What are the requirements for installing a power plant?

1. Load power (size and type)

This is usually the maximum instantaneous load that the power plant must withstand. This will determine the size of the required power inverter.

Load calculation is the first step in sizing the system. The customer must decide which loads need to be backed up during a power outage.

2. Energy requirement

This will give you an idea of ​​the amount of energy you need to store. It may be that the equipment to be turned on is a critical load. In this case, the battery OR the power supply must be able to provide the specified load for the required period of time.

3. Purpose

The purpose of a power plant can be to provide uninterrupted power supply OR to reduce dependence on the mains. In cases where the power system is stable, it is better to use a system tied to the backbone. In cases where power availability is required, an array of batteries is required.

4. Requires shadow-free area

Solar panels should be placed in an unshaded area facing directly into the sun for best performance. This requires sufficient space on or near the roof, where it will not be shaded by solar radiation.

5. Budget / Finance

Budget is a very important aspect of design. For example, a battery system may technically be required, but without it, the cost could be reduced by 40%.

Choice of technology

Solar module technology converts the sun's natural energy into usable electrical energy. Photovoltaic modules are made of monocrystalline / polycrystalline solar cells connected in series and in parallel. Solar Panel in Pakistan Monocrystalline solar panels are an efficient type of solar cell, but they are also the most expensive. Their performance is slightly better in low light conditions. The design itself is carried out on special software, taking into account all the listed parameters of the installation site and possible obstacles.