As the use of solar energy grows, understanding the differences between off-grid and on-grid solar inverters is crucial for making an informed decision. These devices are vital in converting DC power from solar panels into AC power for various applications. Here’s a comparison of their features, advantages, and the latest prices in Pakistan for 2024.
Off-Grid Solar Inverters
Off-grid solar inverters are ideal for locations without access to the main power grid. They are essential for creating independent solar power systems.
Key Features:
- Battery Compatibility: Store excess energy in batteries for use during periods without sunlight.
- Voltage Regulation: Ensures a stable AC output despite variations in solar input.
- Multiple Input Sources: Integrate energy from solar panels, wind turbines, and generators.
- Power Management: Includes features like load priority and adjustable charging algorithms to enhance efficiency and battery life.
- Monitoring and Control: Allows users to manage settings and monitor performance via apps.
- Surge Capacity: Handles sudden power spikes from high-demand appliances.
- Durability and Weather Resistance: Designed to endure extreme temperatures and harsh conditions.
Advantages:
- Independence from the Grid: Perfect for remote areas or during power outages.
- Energy Independence: Reduces reliance on fossil fuels and lowers electricity costs over time.
- Initial Costs: Higher initial expenses, including battery costs, but long-term benefits.
Latest Prices in Pakistan:
| Product Name | Price (PKR) |
|---|---|
| Homage HBS-3216SCC BOLT Series UPS | 170,000 |
| Knox Argon VM II 3Kw | 145,000 |
| Knox Argon VM II 5Kw | 195,000 |
| Power Square Infini V III Twin 6kw | 225,500 |
| Power Square VM III Twin 4kw | 170,500 |
| Power Square VM III Twin 6kw | 203,500 |
| Ziewnic MARVEL 4.5KW VM IV PV5000 | 172,000 |
| Ziewnic MARVEL 6.0KW VM IV PV7000 | 181,400 |
| Tesla Axpert VM III 5 KW MPPT 48V | 180,000 |
| MaxPower Sunbridge 1000 Solar Inverter | 46,000 |
| MaxPower Sunbridge 3000 Off Grid | 97,000 |
| MaxPower Sunbridge 4000 Off Grid | 146,000 |
| Tesla Axpert Infini VII 3 KW 4000 | 160,000 |
On-Grid Solar Inverters
On-grid solar inverters connect to the national power grid and are used in systems that send excess electricity to the grid.
Key Features:
- Maximum Power Point Tracking (MPPT): Continuously adjusts to the optimal operating position of solar panels to maximize energy output.
- Grid Synchronization: Ensures a smooth connection with the utility grid.
- Monitoring Capabilities: Advanced tools for real-time performance monitoring and issue detection.
- Efficiency: Minimizes energy losses during conversion.
- Safety Features: Includes protections against overvoltage and overcurrent.
Advantages:
- Cost-Effective: Generally less expensive than off-grid systems due to the absence of battery storage.
- System Support: Extra energy is fed back into the grid, reducing dependency on non-renewable resources.
- Simplicity: Easier installation and maintenance.
- Net Metering Options: Allows users to sell excess solar energy back to the grid, lowering electricity bills.
Disadvantages:
- Grid Dependency: Cannot provide power during grid outages.
- Restricted Control: Limited ability to manage energy production and use.
- Regulations: Local utility policies may affect the viability of installations.
- Lack of Backup Power: No backup power during grid failures.
Latest Prices in Pakistan:
| Product Name | Price (PKR) |
|---|---|
| Inverex Nitrox 10 KW On Grid Solar Inverter | 320,000 |
| Inverex Nitrox 15 KW 3 Phase PV Solar On-Grid | 475,000 |
| Inverex Nitrox 20 KW 3 Phase PV Solar On-Grid | 630,000 |
| Fox 5KW On Grid Solar Inverter | 287,250 |
| Goodwe 5Kw On-Grid Solar Inverter | 299,000 |
| Huawei 5kw On-Grid Solar Inverter | 340,000 |
| KNOX ASW T 5KW Three Phase On Grid Solar Inverter | 245,000 |
| Solax 5Kw On-Grid Solar Inverter | 272,000 |
| Solis 5kW Wi-Fi – 3P On-Grid Solar Inverter | 334,520 |
| Sungrow 5 KW On-grid Solar Inverter | 380,000 |
| Fox 10KW On Grid Solar Inverter | 298,000 |
| Goodwe 10Kw On-Grid Solar Inverter | 395,000 |
| Hopewind 10kW On Grid Solar Inverter | 365,000 |
| Huawei 10kW On-Grid Solar Inverter | 595,000 |
