Advantages of photovoltaic systems
1. High reliability
Photovoltaic systems are still highly reliable even under harsh conditions. Photovoltaic arrays ensure continuous, uninterrupted operation of critical power supplies.
2. Strong persistence
Most modules in a PV system have a warranty period of up to 25 years and remain operational even after many years.
3. Low maintenance costs
Photovoltaic systems require only regular inspections and occasional repairs, which are extremely low cost compared to conventional fuel systems.
4. Zero fuel consumption
Photovoltaic systems do not require fuel and can eliminate associated procurement, storage and transportation costs.
5. Noise pollution is small
The photovoltaic system can operate quietly with minimal mechanical movement.
6. There is photovoltaic supervision
In order to improve energy efficiency, photovoltaic systems may need to add some modules.
7. Strong security
Photovoltaic systems do not require fuel and can be safely operated after proper design and installation.
8. Strong independence
The reason for adopting this new technology in many residential areas is that photovoltaic systems maintain the independence of energy production and are therefore unaffected by utilities.
Disadvantages of photovoltaic systems
1. High startup cost
Each PV installation should be economically evaluated and compared to existing alternatives. At present, the construction cost of photovoltaic systems is relatively high, but with the reduction of photovoltaic system construction costs and the rise of traditional energy prices, photovoltaic systems will have strong economic competitiveness.
2. Available solar radiation instability
For any solar system, weather changes will greatly affect the amount of electrical energy output. Therefore, the system design needs to be adjusted according to changes in climate and location.
3. Have energy storage requirements
Some photovoltaic systems use batteries as energy storage devices. This increases the footprint, cost and complexity of the system.
4. Efficiency needs to be improved
In order for PV systems to reflect cost-effectiveness, we need to use an efficient method to distribute the energy generated during use. However, they are now often used to power alternative inefficient appliances.
5. Lack of knowledge and skills
Photovoltaic technology is an emerging technology. The lack of relevant information limits the development of its markets and technologies.