Introduction of off grid solar power system and its application in RV

As a clean energy source, solar energy has a wide range of applications and many use scenarios. Rapidly reducing the cost of power generation is the most likely energy source to fossil fuels in the future. When it comes to solar power generation, photovoltaic power generation is the focus.

Many regions and countries are also developing photovoltaic power generation because it is economical and practical, energy-saving and environmentally friendly. In the process of understanding photovoltaic power generation, you may have heard of off grid solar power system. So what is an off grid solar power system? What are its components?

1. What is an off grid solar power system

off grid solar power system are also called independent photovoltaic power generation systems. It can operate independently without relying on the power grid, convert light energy into electrical energy, and can effectively solve the problems caused by power shortage and power outage.

Since the off grid solar power system is not limited by geography, it is widely used. It can be installed and used as long as there is sunlight, and it can realize "light and electricity". With off grid solar batteries, off grid solar power system are very suitable for use in remote areas without power grids, and can also be used as emergency power generation equipment in areas with frequent power outages.

2. Working principle of off grid solar power system

● The working principle of crystalline silicon n/p type solar cells

When p-type semiconductors and n-type semiconductors are tightly bonded together, p-n junctions are formed at the interface between the two. When the photocell is illuminated by sunlight, the accumulation of positive and negative charges is formed on both sides of the p-n junction, and a photogenerated voltage is generated.

Theoretically, if the electrodes are drawn on both sides of the built-in electric field and an appropriate load is connected, a current will be formed, and power will be obtained on the load. The battery module of the off grid solar power system is a solid-state device that realizes P-V conversion by using the electronic properties of semiconductor materials.

3. Off grid solar power system system composition

Off grid solar power system are generally composed of photovoltaic arrays, solar charge and discharge controllers, battery packs, off-grid inverters, DC loads and AC loads composed of solar cell modules.

● Solar modules

Solar modules are the main part of the solar power supply system and the most valuable component in the solar power supply system. Its role is to convert the sun's radiant energy into direct current electricity.

● Solar charge and discharge controller (photovoltaic controller)

Also known as photovoltaic controller, its role is to regulate and control the electrical energy generated by the solar cell module to maximize the charging of the battery. And play the role of overcharge protection and overdischarge protection of the battery. In places with large temperature differences, the photovoltaic controller should have the function of temperature compensation.

● Battery pack

Lithium battery can store the electricity generated by solar modules during the day for use when there is no light. For the outstanding performance, lithium batteries are becoming increasingly popolar.

● Off-grid inverter

It is the core component of the off-grid power generation system, responsible for converting direct current into alternating current for AC loads. In order to improve the overall performance of the photovoltaic inverter graph power generation system and ensure the long-term stable operation of the power station, the performance indicators of the inverter are very important.

4. Application scenarios of off grid solar power system

Off grid solar power system can be used in a wide range of applications, such as areas without electricity, communication base stations and street lamps. It can also be used on rooftops, as well as RV yachts, monitoring power generation systems, photovoltaic building integration, photovoltaic pump irrigation systems, wind and solar complementary power generation and so on.

Click on the picture for product details of Tycorun 10kwh powerwall for home system

It can effectively solve problems caused by power shortages and power outages.powerwall Is undoubtedly a better choice in the face of difficult problems, it supports a stable and safe power supply. Has played a huge role in the smart home. Powerwall is undoubtedly a better choice in the face of difficult problems, it supports a stable and safe power supply. Has played a huge role in the smart home.

5. The difference between grid connected and off grid solar power system

● Off grid power generation systems

It is composed of photovoltaic modules, solar controllers, inverters, batteries, loads, etc. Independent operation independent of the grid. In the case of light, solar energy is converted into electricity, and the load is powered by the solar controller all-in-one machine to charge the battery.

In the absence of light, the battery can be powered to the AC load through the inverter. The cost of its battery accounts for 30%-50% of the off-grid power generation system. Off grid inverters are generally four-stage structures of controller, boost, inverter and isolation.

A stand-alone system that does not rely on the grid. That is, regardless of whether there is mains power, as long as there is sunlight to meet, the off-grid system can work independently and can independently provide electric energy. There are energy storage devices. That is, batteries are needed, otherwise they cannot work at night or on rainy days.

● Photovoltaic grid connected energy storage system

It is composed of photovoltaic modules, solar controllers, batteries, grid-connected inverters, current detection devices, loads, etc. It can increase the proportion of spontaneous self-consumption.

When solar power is less than load power, the system is powered by solar energy and the grid together. When the solar power is greater than load power, solar energy supplies the load while storing excess electricity through the inverter.

6. Off grid solar power system in RV

What is an off-grid solar RV system? Off-grid solar RV system, also known as on-board off grid solar power system, refers to the installation of a complete set of solar panels for rv.

● Significance

The off-grid solar RV system applies solar photovoltaic panel devices on the roof of the car, and the benefits it brings are enormous:

• Clean and pollution-free

Solar energy is an inexhaustible source of clean energy. The off-grid solar RV system uses solar energy to provide continuous power for the line, effectively reducing carbon emissions, and is economical and practical at the same time clean and environmentally friendly.

• Control the temperature

The off-grid solar RV system can make reasonable use of the roof space, avoid the high temperature caused by direct sunlight, and effectively reduce the temperature inside the car.

• Extend battery life

The off-grid solar RV system can continuously convert light energy into electricity, but the accumulated energy cannot be ignored, which can effectively extend the battery life.

● Application scenarios

Off-grid solar RV systems are widely used in special vehicles such as the field, and can rely on solar power generation systems to supply power and use load equipment when they are far from the power grid. Especially for those who love camping, off-grid solar RVs are simply the ideal choice. Equipped with an off-grid solar power system, it can provide you with continuous energy wherever you go, as long as there is sunlight.

7. Conclusion

Off grid solar power system is mainly used to solve the basic electricity problem of residents in areas without electricity or less electricity. Compared with the photovoltaic grid-connected system, the off grid solar power system has more controllers and colloidal batteries, so the electrical system is more complex.

Since the off-grid system may be the only source of electricity for users, users are highly dependent on the system, so the design and operation of the off-grid system should be more reliable.

Related articles: lithium rv battery, Top 5 home energy storage companies, distributed pv system