On-Grid or Hybrid Systems (Main Points)
- On-Grid System: A system without a battery, that depends on net metering and fails in case of load shedding.
- Hybrid System: It combines the characteristics of on-grid and off-grid, so you can enjoy savings as well as luxury during the load-shedding period.
- Recent Changes: Switch from an on-grid system to a hybrid one because of the increased load-shedding and changes in energy dynamics.
- Recommendation: In the current situation, it is better to go with a hybrid system, due to its versatility although capital cost will be on the higher side.
Understanding On-Grid and Hybrid Systems in Pakistan
On-Grid System (Battery-less System)
In an on-grid system, solar energy is produced without batteries. Solar energy is injected into the house without storage, and extra energy is sent back to the grid via a green meter. This system is cost-effective and long-lasting but does not work during load shedding.
Hybrid System (Combining On-Grid and Off-Grid Features)
Just like the On-grid system, a hybrid system also uses net metering but a hybrid system has an edge of working in load shedding as well. This is possible by adding batteries to the system to still provide electricity even if the grid is off.
Evolving Trends in Pakistan’s Solar Energy Landscape
Past Trends
A few years back, people were using the on-grid system because of its lower price, longer life, and more efficiency. In the old days when load shedding was less frequent and people’s first choice was on-grid solar systems.
Shift in Dynamics (2022 Onwards)
In 2022, energy dynamics changed in Pakistan due to the increased load shedding because On-grid systems were unable to provide electricity during load shedding where they were supposed to perform so this shift forced many people to move with the hybrid system or add a hybrid inverters with their existing on-grid setup.
Load Shedding Challenges
In heavy load shedding, on-grid systems are unable to contribute to the grid resulting in the wastage of energy they generate. At this time, hybrid systems are a good choice because they can operate during load shedding.
Choosing the Right System for Pakistan’s Environment
Why Hybrid System is Recommended in the Current Scenario
Looking at the current energy situation and the possibility of ongoing load shedding, a hybrid system is our recommendation. A hybrid system ensures that during load shedding there should be no interruption in power supply. It can save you money along with luxury.
Optimizing Solar System Size for Cost-Efficiency and Backup
While determining the size of your solar energy system, make sure to keep a balance to ensure continuous power supply and cost-effectiveness in load shedding. For a powerful and cost-effective solution, follow these guidelines:
System Size Recommendations:
- 20 kW System:
- Assign 5 kW for Hybrid and 15 kW for On-Grid.
- Benefit: Reduces the cost and capital expenditures.
- Advantage: Provides 5 kW backup during hybrid operation.
- 10 kW System:
- Choose Hybrid System.
- Reasoning: A hybrid system is a good option because it can work during load shedding, so you will get a continuous supply of electricity.
- 5 kW System:
- Choose a Hybrid System.
- Importance: Ensures that all limited loads in your house continue running during load shedding, both day and night.
Budget Considerations
It should be noted that the capital cost of a hybrid system is higher it will be around 1.5 times more than the on-grid system. But if there are no budget constraints, then the additional benefits make it a good investment.
Frequently Asked Questions
Q1: What is the main benefit of a hybrid system as compared to an on-grid system?
A: The biggest benefit of the hybrid system is that it can work during load shedding to provide a continuous power supply.
Q2: Will I be able to save money with the on-grid system?
A: Yes, the on-grid system is budget-friendly and it will save money on the electricity bills but it doesn’t work during load shedding.
Q3: Is it beneficial to invest more money in a hybrid system?
A: A hybrid system has an initially high cost but as it provides energy during load shedding and ensures uninterrupted power supply it is worth the investment.