Cables for Renewable Energy

Believing that the earth’s fossil fuel supplies will be depleted, many energy experts feel that the future is based on renewable and environmentally friendly sources such as solar and wind energy.

Solar Cables:

The solar cables are mainly copper conductors for photovoltaic applications designed to comply with good industry practices and engineering internationally. Further Installers, who are at the forefront of this technology, seek quality in each of the elements that are part of the installation.

Conductors can be made of copper and aluminum with insulating materials that vary depending on the application. Each part of the cable is correctly selected, and the final product is produced with the highest quality, complying with international standards.

Cable choice

When choosing a photovoltaic cable that links the solar panels with the inverter of direct or alternating current.  It will be essential to connect the resistance conditions and the security it offers. The correct selection of the electrical solar PV wire will optimize the performance of the solar garden in the short, medium, and long term.

The electrical connection cable is the essential requirement for the transport of energy between the different integrating elements of a photovoltaic system. The growing demand for more environmentally responsible and more sustainable energy sources has contributed to the development and implementation of solar energy installations.

Now, the choice of solar cables will determine the overall performance of the solar installation. They will allow there to be no voltage losses or that the panels will heat up and deteriorate.

In the same way, they guarantee that no losses of energy produced from the plates to the regulator. Proper wiring sizing for photovoltaic installations is important to ensure power supply in areas of difficult access or isolation.

Finally, if batteries incorporated into the installation, the energy that is not consumed during the day. Similarly, It can be stored to guarantee the energy supply at night.

The thickness of solar cable can also call the section of the cable. It will depend on the number of amps that we are going to need to pass through the wire. We also have to know how much distance we are going to need to transport energy.  The range that there are from solar panels to regulators and from regulators to batteries.

How to calculate the solar and wind energy cable?

  1. Knowing the voltage that solar cable will transport will depend on the solar panels and how they are connected. Our advises a cable insulation voltage of 0.6 / 1kV. As this cable will be outdoors, it needs to noted that the higher the temperature, the greater the loss of tension. We usually work with a voltage drop of 3%.
  2. Meters of regulator cable to batteries, this section of wire is still direct current. Which we usually work with a voltage drop of 1%.
  3. Inverter-consumption cable section of our home, where the current is already alternating thanks to our inverter. Here we use a 3% voltage drop.

Have a useful life of 30 years at -20C to +90C, withstand up to 120  C permanently. This is possible using electric PV wire specially designed for photovoltaic applications. That has class 5 (flexible) tinned electrolytic copper conductors and a rubber jacket or cover. Both features provide superior performance to any conventional cable.

Its flexibility and diameter of cable need to note. Choosing those cables that are more flexible and of reduced diameter to increase their manageability and reduce the space they occupy.

Its admissible intensity is higher, with equal sections than conventional cables.  The temperatures of cable not more then 120ºC to reached in the conductor. That means significant increases inadmissible powers compared to similar sections of conventional cables.

Finally, it does not compulsory but very convenient that the photovoltaic cable offers the guarantee of internationally renowned certificates such as TUV.

Question raise after all information:

  1. Are you a distributor of solar PV wire or electrical equipment?
  2. Do you have a project with special electrical wiring needs?
  3. Are you in contact with an international supplier in purchasing solar cables directly?

Work hand in hand with high-quality international warranty providers like ZW-Cable.

ZW-Cable aims to develop the highest performance electric cables to meet the requirements of the industry and consumers.

Wind Energy Cables:

Wind energy cables specially developed to withstand the environmental conditions of the sun and the wind. This is the fastest-growing market for renewable energy. New wind farms developed on every continent. This will replace the energy from fossil fuels and will make an important contribution to the environment.

New wind power plants built where winds at high speeds constantly. In order to ensure proper operation, special cables used in different applications in the field.

Requirements for cabling solutions in wind applications:

Due to different climatic conditions in locations such as Asia and Europe, where Wind energy cables, specific technical requirements, the demands on cables, cable glands, cabling and connectors for resistance to extreme temperatures, resistance to vibration, and resistance to torsion are incredibly high. Many of the installed components have to demonstrate correct operation for many years in temperature from -40 to + 90ºc.

The design of Wind energy cables, and all the elements that guarantee its reliability, is key to ensure the evacuation to the earth of the energy generated. Bearing in mind that subjected to continuous movements, friction, tension, therefore, a hostile environment.


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