Introduction
Understanding the technical process of getting an off-grid or backup power system has become the order of the day. A solar power system should be properly installed in order to maximize energy production, ensure safety, and for greater long-term savings. HBOWA provides a custom-fit hardware solution of solar panels, inverters, and LiFePO4 batteries for various types of residential and commercial system needs. This guide will give practical insight into the solar system fitting process. Some instances related to fitting are also given.
Essential Equipment and Planning Before Solar System Fitting
Before the first panel is fitted, or the first wire is connected, you have to do a complete site assessment. You should assess the orientation of your rooftop, the number of hours of sunlight available, and whether the rooftop gets shaded by trees or abutting buildings. You should also assess the strength of the roof. Based on these first observations, the future efficiency of your system is dependent on.
The process of how to fit a solar panel is to first decide on the system components. They must be compatible and suitable for your load requirements. HBOWA PERC solar panels and TOPCon solar panels are high-output modules. They are constructed for long service life. They are ideal for fitting both residential rooftops and commercial buildings. You should next have a stable mounting structure to withstand heavy wind loads and local weather conditions.
HBOWA also supplies suitable Growatt inverters and Deye inverters for power conversion. They are suitable for a system of size 6kW and above. Load shifting, grid interaction, and optimized battery charging are allowed with these inverters. With HBOWA home LiFePO4 battery storage, you can fit any backup or off-grid solar system. They have a higher lifecycle and are also safer in use. You must also have additional equipment like PV combiner box, DC breakers, surge protectors, electrical conduit, etc., to ensure total safety and adhere to the electrical codes. You should also confirm that your system is according to the regional installation codes and the permit requirements.
Step 1 – Mounting and Aligning the Solar Panels
The mounting layout of solar panels on a rooftop or the ground is important not only at the time of the solar panel installation but also for the long-term safety of the structure and the optimal energy output. The type of building, the plane, or the availability of a free shade area confirms the choice of the solar panel mounting method. The type of roof also affects the method of solar panel installation. While flat roofs need the support of ballast or a racking system that is angled, the roofs that are tiled or made of metal are fitted with mounting clamps. Both are conducive to solar panel installation. Rural or commercial plots with open land can also be suited for ground mount options.
The positioning or orientation of the solar panels is crucial for the capture of maximum energy. In case this is important, the panels can be mounted on solar trackers. In the northern hemisphere, the modules must face south, while in the southern hemisphere, the modules must face north. On any flat surface, the panel’s tilt angle should be equal to the local latitude to ensure the maximum capture of solar energy. An incorrectly aligned solar panel can adversely affect the yearly energy yield by as much as 15%.
HBOWA offers solar panel mounting kits that are modular and amenable to a range of clamps. These hardware products are compatible with the installation of PERC and TOPCon solar panels. The kits include tilt angles specific to the site and the locality. The installation is easy and reduces lead time, too. The wind resistance solution adapts to and complies with the wind standard for wind zones, particularly those in residential areas and light industrial locations.
There was a customised HBOWA installation on a metal rooftop in Maharashtra a few weeks ago. The metal rooftop offered no shading but had a marginal angle. The set-up comprised a 5kW solar panel. With the regular monsoons in the area, there would be cloud cover besides a few rainy weeks every year. Despite all of this, due to the correct installation and the on-grid, centrally-monitored solar system, the exact model raked in an output of 18.6 kWh daily, just as had been predicted. It is connected to a cooler room for the preservation of special products, and other lights that are essential for the production of the items.
| Latitude Range | Recommended Tilt Angle |
| 0°–15° | 10°–15° |
| 16°–30° | 20°–25° |
| 31°–45° | 30°–35° |
| 46°–60° | 35°–40° |
Learning how to fit a solar panel and then fitting the same as per the site and the plane with the correct angle installed avoids any sudden difficulty and ensures the repetitive and proper production of power. It is to be noted that every solar panel installation diagram must be changed and adapted as per the terrain and climatic conditions of the project.
Step 2 – Wiring: Series, Parallel, and Hybrid Connections
The wiring plays a significant role in the solar system’s voltage and current flow. Furthermore, the inverter also plays a significant role in wiring system compatibility. Your solar system connection diagram should be according to your choice, the panel’s voltage, and the total power needed by your inverter and battery.
If you take the solar panels in series, the voltages of the panels are added, and the current remains the same. The series connection is used for high-voltage input inverters. In the case of the parallel connection, if you increase the number of panels, the voltage remains the same, but the current increases. Parallel connection is suitable for adding multiple current sources to one load, which is preferred when your battery banks need a higher amp input. A hybrid connection acts as both options and can be used in both modular systems and mixed-orientation arrays.
Proper cable sizing can help reduce voltage drop and thermal losses. In general, 4mm² PV cable is used for cable runs less than 15 meters. If your runs are longer, or you are dealing with a higher current, then you will need 6mm² or more. Moreover, all terminals must be securely crimped. Moreover, MC4 connectors need to be locked in securely, and they should be tested for their insulation resistance before turning your solar system on.
Below is an easy-to-understand solar power diagram installation showing a six-panel setup wired in 2S3P format.
12V, 24V, and 48V Solar Wiring Diagrams Explained:
A 12v solar panel wiring diagram is perfect for an RV, boat, or cabin. It works well for small things such as lighting or small appliances. The wiring diagram for a 24v solar system wiring diagram provides a little more power than the previous system. They are great for medium-sized systems such as farms, or a tiny shop. The 48v solar panel wiring diagram is more widespread when it comes to commercial and residential systems. Though it’s mostly used in commercial settings, the 48v wiring system is beneficial since longer wire runs lose less power. Also, they allow the use of larger inverters.
Step 3 – Connecting the Hybrid Inverter and Battery Backup
Connect the Hybrid inverter to the battery backup to ensure the solar power system performs optimally. Mount the inverter on a wall on a stable, vertical surface while maintaining a clearance of 20 cm on all sides to enable the inverter to dissipate heat adequately. This prevents the inverter from a thermal shutdown that might affect the performance of the inverter and, in turn, the entire solar power system.
The Hybrid solar inverters of 6kW hybrid solar inverters. These inverters manage the flow of power between the solar panels, the batteries, and the grid. During peak sun hours, the inverter always supplies the electrical loads directly to the grid. The solar power excess can be sent to the batteries or the grid as configured.
HBOWA provides Lithium Iron Phosphate batteries, and you can connect them either in series or parallel configuration, depending on the voltage and capacity requirements. The communication between the inverter and battery is done using RS485 or CAN protocol, and the inverter gets to know the battery’s status in real-time to program charging the battery in the smart schedule, manage the state of charge, and ensure the batteries don’t discharge completely often.
To attain your usage objectives, you must make the necessary settings. The backup priority ensures the inverter continues the supply the critical loads during the power outage. Adjust the depth of discharge, charging current, and voltage setting to suit your HBOWA battery module‘s specification.
In Nakuru County, Kenya, a remote clinic has installed an HBOWA 6kW hybrid inverter with a 10kWh battery pack that supplies power to the vaccine refrigerators, lights, and various diagnostic loads in the medical centres. The clinic has a history of significant grid failures, and with the installation, they have stabilised the medical service even during the grid’s minimum operation in a low infrastructure, intense area.
On-Grid, Off-Grid, and Hybrid Solar Connection Diagrams:
Solar systems for houses or office buildings in your city might have 3 different setups ” the on-grid, off-grid, and hybrid. The on-grid solar system wiring diagram connects panels directly to the utility grid with the help of an inverter to provide solar power without battery storage. However, in off-grid solar system wiring, batteries are used to store energy and are primarily for remote areas where utility lines don’t reach. The third kind of installation, our hybrid solar installation diagram, is increasingly used because of its ability to combine the power sources.
Step 4 – Load Connection and Safety Components Setup
This step of solar system fitting includes the connection of an AC load and safety installation to ensure system longevity. An AC distribution box is mounted near the inverter, and it is connected to handle domestic or commercial loads. It is rated according to peak power consumption rather than average power consumption.
Other than that, a PV combiner box is placed between the panels and the inverter. It serves as a central unit in which the incoming DC cables from the solar panels are connected. This box provides overcurrent protection. A surge protector known as (SPD) is placed on both AC and DC sides to make the system free from high voltage spikes caused by lightning or switching faults.
The input and output breakers are sized according to the system current. These breakers can be damaged by the excess current flowing through them. They prevent short circuit conditions and isolate the fault.
Earthing connections are mandatory for all the metal parts of the solar array, the inverter, and the battery housing. Earthing prevents the user from receiving an electric shock. Also, an earthing connection ensures system stability during voltage fluctuations.
In regions with a larger number of lightning incidents, an external arrester or a lightning rod might be used for the added safety of the system.
Step 5 – System Commissioning and Performance Verification
After completion of installation, system commissioning follows a set pattern. The battery bank is first switched on, followed by the inverter, after which, the photovoltaic array is connected, and finally, the load is switched on. Following the sequence lets each component initialize safely without causing overloads or false faults.
The ‘HBOWA’ hybrid inverter app displays real-time information on the charge level, discharge rates and load consumption. The app also displays system alerts and logs, helping in identifying usage trends and potential problems. Early identification of inefficiency or misconfigurations makes every bit of digital monitoring crucial.
Right solar power diagram installation will reflect equalized voltage over all circuits. Stable voltage output, zero error codes and similar battery mirrors the successful start-up of a circuit.
In one such application, a homestay business in Northern Thailand accessory, uses an HBOWA 5kW system. On an overcast day, the owner of the homestay checks the load prioritization using the inverter dashboard. It helps him manage the lighting and refrigeration based on the charge availability, avoiding sudden shutdowns, while not letting the already spared out solar go in vain.
Post-Installation Maintenance and Common Issues
A stable system post-installing a solar power system demands regular checks and basic diagnostics. A monthly visual inspection can help in noting any wear and tear, corrosion, or accumulation of debris. Clean panels reduce efficiency to about 10%, and dry climates may considerably affect it.
Performance issues may partly be the outcome of partial shading. Loss of MC4 connectors or water entering conduit points will affect the system’s generation. Inverter displays error codes for overvoltage, undervoltage, or problems in communication.
HBOWA LiFePO4 batteries have set charge cycles and thermal characteristics. Observing the depth of discharge and charging imbalance may help to enhance their life cycle to more than 6000 cycles under the best conditions.
Home vs Small Business Solar Installation – What’s Different?
The size of the solar power system to be installed varies with the user’s type of solar power system being installed. Homes can have basic lighting, refrigeration, and entertainment loads, while small businesses will require energy for machines and the working of the HVAC systems.
The small business may also require energy with the use of computers and the refrigeration units operating continuously. A home will need system sizing roughly between 3kW to 5kW, while a small business, depending on hours of operation and the critical load demand of users, will need 6kW to 10kW and even more sometimes.
System design also helps in maintaining the energy audit, and thus, compliance may vary. Commercial setups in some locations have stricter interconnection or inspection standards than homes. The system design of the small business facilities uses some features like load prioritisation and remote system monitoring tools.
RV and Portable Solar Power Wiring Diagrams:
RV solar power wiring diagram includes 2 or more panels connected to a charge controller. These panels are then fed to a 12 V battery with a very stable voltage. When the battery has a stable value, it can power appliances such as lights, fans, and even refrigerators when you are on the road. Similarly, drawing a simple solar panel wiring diagram for portable panels can be quite straightforward and can be ready-made plug-and-play equipment, also supporting camping gear or even grid backup power. The efficiency of the equipment usually depends on the amount of sun exposure, correct fusing, and grounding.
Compact systems are very popular in the USA, Europe, and Australia, as mobile living and off-the-grid life are usual in these countries.
Conclusion
From early site analysis to final testing, each phase of the installation of solar power system must be executed with precision. By understanding electricity requirements, component selection, and confirming that the connections are made safe and effective.
If you choose HBOWA products, you will have the ease of installation for solar panels, hybrid inverters, and LiFePO4 batteries. In the long run, it will allow you to be self-sufficient and incur lesser operating costs.
