How good is a Solar Rooftop? It ‘s one of the questions that must be addressed every time when it comes to utilizing solar energy. Because in today’s era where technology and innovations is growing by leaps and bounds It’s not a new word any more. But it’s a word that’s quite familiar and widely talked about, but we believe that there are still many people who still do not understand exactly how good Solar Rooftop is, is it really worth it or not? But you can find the answer from this article.
What is a Solar Rooftop?
Solar Rooftop is a solar cell system that generates electricity on the roof from solar energy. In principle, solar power systems, whether installed on the roof (Solar Rooftop) or the solar farm industry, all work on the same principle: Solar Panels will Convert solar energy (Solar Energy) to direct current (DC), which is known as the Photovoltaic Effect, then DC electricity can be stored in the battery. Or change to alternating current (AC) by a device called Inverter and can be used with various electrical devices in the house.
Now that you know what Solar Rooftop is, you need to understand its type first. Because it will affect the design of Solar Rooftop for installation in accordance with the needs of use. Solar Roof Top installed on the roof for electricity generation is divided into 3 types as follows:
1. Solar Roof Top with On Grid System
Solar system generates electricity on the roof without batteries. It is also called an On-grid System, which is connecte to the power grid. The remaining electricity produce from daily use can be sold back to the government. It is consider the most popular system. Both home and business including industrial plants. Because it focuses on actual use during the day and at night switch to normal lights
It is currently the most cost-effective option for those interested in installing a solar rooftop system. Because there is no maintenance cost batteries or replace batteries that are expensive. The permanent on-grid system has a service life of more than 25 years. The system is durable. And the size of the production capacity (KW) to choose according to the suitability of the user. But the on-grid system will not generate electricity without power from the grid in the event of a power outage for maintenance. because if the on-grid system still distributes electricity The electricity will return to the transmission line. which may be dangerous to the staff working A good on-grid system must have a device that prevents reverse power transmission lines, called ZERO EXPORT.
2. Solar Roof Top Off Grid System
Solar system generates electricity on the roof using batteries. but not connected to electric wire of electricity, also known as Off-grid System. It is a system that connects to a backup battery (Off grid) without connecting to the electricity grid. The solar cell will generate electricity and then the electricity will flow through the Charge controller to store the electricity in the battery. During the day when there is enough sunlight The solar cell can produce direct current (DC) and the inverter converts it to alternating current (AC) for use. Electrical equipment inside the house and the excess produced will be store in the battery. At night, the system will use the electricity stored in the battery. Suitable for areas with inaccessibility of electricity or want to use to backup power to use when there is a power failure
Off-grid systems require accurate calculations of the home’s electricity consumption. To be enough for daily use or even in the season when there is less sunlight. Moreover, the prices of batteries and off-grid inverters are much higher than on-grid systems. Therefore, off-grid systems are commonly use in areas with no access to electricity. It is mostly use in conjunction with generators. In the event that the battery does not store enough electricity for use This may be due to rain, cloudy skies, or clouds, dust or fog obscuring the sun.
3. Solar Roof Top Hybrid System
Solar system generates electricity on the roof using batteries. and connecte to the electric wires of the electricity Also known as a hybrid system (Off-grid System). Which is a combination of on-grid and off-grid systems (Hybrid) is a battery system. Come to reserve energy The principle of operation is when the solar panel receives solar energy. It will convert into direct current power (DC) and then pass it to the hybrid inverter to convert it to alternating current (AC), which will then be connected to the power distribution system of the Electricity Authority. One connector is connect to the battery. And the other terminal is connect to electricity for various applications
When the system generates electricity in excess of the amount of use in the home. Electricity from the system will be store until the battery reaches. Its full capacity, so it stops. And will supply electricity to be use to the devices in the house again. It may be at night when the electricity bill is usually more expensive than during the day. The hybrid system is the least expensive. and is not very popular nowadays