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When calculating the number of solar panels for your home, you should consider two factors; your space and energy needs on your roof. You can use the table below to calculate the number of panels based on the area on your roof.
| Panel Power (W) | Average Area (cm2) | Average weight |
| 10-20 | 900-1548 | 1,5 |
| 40-60 | 2900-4000 | 5 |
| 80-100 | 5300-6800 | 8 |
If you have enough space on your roof and you are going to calculate the number of panels according to your annual energy consumption, you can benefit from the table below.
| Average Annual Electricity Consumption (kWh) | Panel Power (kW) | Average Number of Panels |
| 7,161 | 5 | 20 |
| 14.165 | 10 | 40 |
| 21.234 | 15 | 70 |
Household solar panels usually differ in 0.5 kW, 1 kW or 2-5 kW. But apart from these, it is also possible to produce special solar panels according to the needs. When choosing between solar panels of different power, location, budget, available space and electricity needs should be considered.
Panels with a power of 0.5 kW are mostly used to power generators and appliances with low electricity consumption. This type of panels are preferred when suitable space is narrow or in moving systems.
1 kW panels are usually offered for low budget systems. These types of panels are recommended for more basic needs such as lighting systems, television, refrigerators and charging electronic appliances.
With 2-5 kW panels, it is possible to set up an energy system that is more flexible and suitable for personal needs. You can create the most suitable system for you with different panel combinations according to your electricity usage and suitable area.
Grid-connected systems (on-grid) are systems where the energy system is connected to the national electricity grid and are subject to a permit process. Off grid systems are systems that are not connected to the national grid and can be considered as generators. In places with grid connection, you should use grid-connected systems to reduce costs.
Legal actions to be taken for grid-connected rooftop systems; It includes processes such as submitting technical documents to the distribution company, submitting various documents to the distribution company for project approval, and signing a connection agreement with the distribution company.
You need the following documents to apply for a solar energy system for your residential building.
For the installation of solar energy in the apartment, the approval of each apartment that has the right to use the roof is required. The installation power of the solar energy electricity generation facility to be installed on the roofs of the residences should not exceed 10 kW for each flat, and the generation and consumption facilities should be located at the same point.
In balcony type solar energy installation, only one solar panel and one micro inverter are sufficient. You can save money on your electricity bill with this less costly solar system.
The solar panel varies according to the area to be installed and the type of roof. However, according to the Unlicensed Electricity Generation Regulation published in the Official Gazette on 12 May 2019, the administrative process for the call letter takes a minimum of 3 months. Average installation time is about 4 months.
Solar panels can be damaged over time due to weather conditions, UV rays and dirt. Periodic maintenance is required to respond to solar panel failures in a timely manner and to increase efficiency. The most common solar panel failures are as follows:
During periodic maintenance, thermal imaging must be performed under specified conditions and by competent personnel.
The use of solar energy at home is not profitable in the short run, but is very profitable in the long run. The average depreciation period in household solar energy systems is 7 years. Solar panels generally have a 25-year performance guarantee. The average life of solar panels is 50-60 years.
However, using solar energy for your home energy needs allows you to pay cheaper electricity bills.
