Sunway Solar is an On Grid Solar System manufacturer and supplier in China. We commit to providing high-performance on grid solar system that satisfy your needs. With decades of combined experience in the solar system, we have advanced manufacturing facilities and extensive experience in solar system projects.
On-grid means your solar system is tied to your local utility’s GRID. This is what most residential homes will use because you are covered if your solar system under or over-produces in regard to your varying energy needs. All this means for you is that your utility system acts as your battery space. If you are producing more energy with your solar panels or system than you are using, the excess energy is sent to your grid’s power company, allowing you to build credit that you can cash out with at theend of the year, in a process called net metering.
We pride ourselves in providing timely support, adhering to high standards, and providing tailor-made solutions that meet the needs of our customers, which is the basis of our growing reputation.
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If you don’t know how to choose the on grid solar system for your project, we can recommend system according to your needs. These are free services for all of our customers.
If you have questions about on grid system installation, feel free to let us know, and we can assist you with installation at any time, or we can send an engineer to the system plant to give you support.
We have compiled the most frequently asked questions about our on grid solar system here for your convenience, but please feel free to contact us if you have any additional questions.
You can submit the form at the bottom of the page or send email to us: sales39@sunwaypv.com. You can also leave a message on Whatsapp: +86 18655051685. When you send an inquiry for a quote, it’s better to provide us with the details, like generation capacity, whether to sell electricity, load power,Local grid voltage ,frequency, quantity, etc. These pieces of information will help us to give you a more accurate quotation.
Benefits of Grid-Connected Solar Systems for Homeowners
A grid-tied solar system, as the name implies, means that the solar system is connected to an electrical grid.
Does this system offer homeowners any long-term benefits?
Here are 7 of the major benefits homeowners can enjoy from grid-connected solar systems:
The grid-connect solar system, unlike the other solar systems, is not very expensive. The cost-efficiency of this option can be attributed to the fact that there is no need to buy batteries and some other equipment. You will not have to bother with the reform costs that accompany batteries.
Also, the system helps to reduce bill expenses. The less you consume, the more energy you save to the utility grid, and the more money you gain from your state government.
In comparison, the grid-tied system costs less than other systems since installing one off-grid system costs up to 3 times the price of a grid-connected system.
Installing solar panels in your home does not only help you to save thousands of dollars yearly.
Do you plan to sell your house someday?
Every homeowner wants to make improvements and repairs that will increase the value of their home when they are ready to sell.
The PV cell components of your solar system, in addition to generating energy, also raises the selling point of your home by adding a more technologically related and modern look that will attract more buyers.
By investing in grid-connected solar panels, you will be making a major improvement that will boost the value of your home. You should prioritize this enhancement because buyers prefer a house that has a working solar system.
Grid-connected photovoltaic systems are very affordable and easy to build and maintain. Since there is no need to buy a battery, which is the most expensive component, you do not have to worry about damaging the battery by under or over-charging.
What would you do when faced with a power shutdown?
If you install a grid-tied solar system, it would have collected and saved solar radiation in the utility grid. Therefore, when there is a power shutdown, it can provide you with power for your electrical appliances.
Also, it will continue to produce power whenever you use it. If you only consume a small amount of energy, the rest will be converted into money for you by your state government.
Using some energy sources can cause considerable contamination. Thankfully, grid-connected solar systems use clean, renewable power to generate energy that will positively impact human beings and the environment.
Grid-connected solar systems do not require batteries, helping to reduce the environmental contamination caused by batteries, allowing you to breathe fresher air.
Most people prefer this type of solar system because it can be used for a very long time without experiencing any side effects or damage. It is safe to say that it has the longest lifespan compared to other solar systems.
You do not need that much help in connecting your solar system to the grid. It involves a simple process that you can easily complete with the help of a friend over a weekend.
All you need to do is take note of the minimum requirements of 100 square feet for every kilowatt when installing the panels on your rooftop.
Here are the necessary steps you need to follow to install a grid-connected solar system:
The grid-connected solar system uses a very simple working process to produce energy.
The sun shines on the panels, producing a direct current, which is converted to AC for use in your home. Any excess energy is transferred to the utility. The grid stores energy to be used when the sun is down, instead of requiring batteries or a myriad of other costly equipment.
An on-grid solar system, also known as a grid-tied solar system, is the most widely deployed form of rooftop solar across the world. These systems do not need any batteries and are connected to the utility grid power.
It is best suited for customers with stable grid power and minimal power cuts. Other than homes, even educational institutions, industrial units, commercial establishments use these systems as their primary source of power.
An on-grid system is designed to first allow solar energy to be consumed by the customer. Beyond this, if the customer needs any excess power, it is drawn from the grid. If the customer’s energy requirement is lower than power generated from the solar system, excess solar units are exported to the grid. This is possible through a ‘Net-meter’’.
Net-meter is a device that records the energy supplied to the grid and the energy drawn from it. At the end of each month, the net energy consumed is recorded and the consumer is provided with a bill. This feature makes the on-grid solar system a great investment with high returns.
Benefits of on-grid solar
1. Huge reduction in electricity bills
With net-meter in place, the consumer has to pay only for the surplus electricity he consumes, ensuring the bill generated every month is reduced drastically. Many of our customers have been able to reduce their monthly bills by 90%.
2. Easy maintenance
The elimination of batteries in the on-grid system makes the maintenance quite easy. It also eliminates the cost of upkeep of the batteries
3. Synchronize with other sources of power
These systems can also synchronize with a diesel generator on site. This is important in case grid power is not available.
4. Better ROI
Cost of a On-grid solar system is lower than other types of solar systems because there are no batteries. It also generates the highest amount of power compared to other types of solar systems. The minimal maintenance and reduction in monthly power bills ensure the customer gets an ROI of 25 – 30%. This means the customer earns Rs.25,000 for every 1,00,000 they invest in solar.
With these advantages, an on-grid system is best suited for a customer with stable grid power and minimal power cuts. Other than homes, even educational institutions, industrial units, commercial establishments install an on-grid system as the system can synchronize with diesel generators to provide uninterrupted power.
Solar power systems are not a standardised product and the same configuration may not be suitable for all users, but need to be designed and configured according to the user’s own circumstances. So for those who are interested in purchasing a solar power system, which points should be considered before purchasing?
The objective environment of the place of residence
Usually, an individual or company does not need much qualification to apply for a solar PV plant to be connected to the grid other than to sort out the right to use the roof. However, there are a number of objective factors that need to be considered before installing a solar PV plant, in addition to the policy requirements. It is advisable to consider the installation location and area of the PV module. Generally speaking, south or east-west facing roofs are more suitable for installation, while families with a yard or balcony can also consider installing a sun canopy, carport or awning.
Economic factors
Although distributed photovoltaic projects are a large investment, they are a long-term and environmentally friendly investment. It has been calculated that, with the current sunshine conditions in China’s Anhui province, for example, each 10,000 yuan piece of equipment can generate between 3,500 kWh and 4,000 kWh of electricity a year, which will pay for itself in five to six years, assuming 100% integration into the national grid. And the life span of PV equipment is generally around 25 years, after which it is all a net gain.
Shading effects
From a safety and stability point of view, the design needs to take into account the effects of permanent loads, wind loads, snow loads and temperature loads on the photovoltaic square and the building. Ensure that the PV cube can withstand local weather extremes. Before the distributed system is installed, the load capacity of the building is surveyed, calculated and calibrated to design a reasonable installation plan.
Certifications
Currently, the main international certifications for photovoltaic products include: UL certification for the USA and CSA certification for Canada. However, there are regional requirements in different parts of the USA, such as the California CEC listing. The basic and most important requirement in Europe is the TÜV certification.
The main certification standards for photovoltaic modules in the European market are IEC/EN 61215 (IEC/EN 61646 for thin film products), IEC/EN 61730 (and IEC/EN 61646); in the US market, the main standard is UL 1703.
In addition, it is worth mentioning that European countries have special requirements for inverters. The main test standards for PV inverters exported to Europe are EN 50178, EN 62109, DIN VDE-0126, etc.; the test standards for inverters exported to the US are mainly UL 1741; G83 for the UK market; VDE 0126 certification for the German grid connection requirements; DK 5940 certification for Italy; AS certification for Australia; SEMKO certification for Sweden; NEMEKO certification for Norway NEMEKO certification; Japan is mainly JET, JQA certification; South Korea is mainly KEMCO certification; other Asian and African countries are now basically recognized TüV certificate. China mainly needs to have Golden Sun Project certification, CQC certification, CE certification.
Selection of photovoltaic power generation equipment
A photovoltaic power generation system mainly includes photovoltaic modules, inverters and various electric wires as well as electricity meters and monitoring devices. Once the quality of the equipment is not good, it will not only affect the safety of your own electricity consumption, but may also affect other users. It is recommended that you choose formal, quality-assured photovoltaic modules and related equipment when purchasing to avoid worries.
So in the end how to buy photovoltaic power generation equipment? To see these 5 points.
Brackets
Firstly, look at the material of the bracket. Photovoltaic brackets are generally required to be galvanised C-beams or aluminium profiles. If it is angle steel or square secondly, look at the angle of inclination of the bracket. Every region has an optimum tilt angle. Any angle greater or less than this will affect power generation. The vast majority of installers do not carefully adjust the optimum tilt angle. Take a schoolboy’s tilt angle measuring tape and you can see if it is the optimum angle.
Finally, look at the aesthetics of the bracket. A high quality power station will have a straight and level installation with a neat and tidy appearance. Poor construction quality power stations, crooked, or even components show wavy, seriously affect the power generation.
Wiring
In a good power station, all cables are wrapped in PVC pipe and it is rare to see exposed wires. Even when boards are connected in series with each other, the parts that have to be exposed are put into C-slots and tied off with ties.
Photovoltaic connectors
Photovoltaic connectors, the least costly but most likely to affect power generation, are the smallest things in a power station. The connectors are waterproof, sunlight-proof and corrosion-proof. Quality is difficult to see with the naked eye, but there is a very simple way to determine the good or bad, pull the connector together, if the wire falls off or the connector off, indicating that the quality is not qualified.
Distribution boxes
The main function of a PV distribution box is to protect the power station. It must have an isolation switch with obvious break points (note that it is not an air switch), lightning protection devices, overvoltage protection and overcurrent protection functions, any less will reduce the safety of the power station. The first thing to look at is whether the relevant devices are all there. Secondly, look at the box material, can use 25 years and the cost is relatively low, the most widely used is stainless steel box. And poor quality tin box, outdoor use for two years may not be able to carry, once the rust, broken circuit, leakage, fire may occur. There are also plastic ones, which have a very short service life and are not strong enough and can easily be damaged.
Shadows
Shadows are an important factor in power generation and may even lead to non-generation and damage to the components over time. According to technical standards, the winter solstice (when the shadow is longest) is not shaded for the modules to meet the requirements. The reality is that most installers are unable to measure shadows accurately and what may not be shaded at the time can, after a few months, become shaded and seriously affect power generation. To judge the quality of a plant installation, just look at whether it is shaded in winter.
Our Industry Experts can help if you have specific questions about on grid solar system. We are happy to answer any questions you may have!
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