Off-grid Solar System
Say goodbye to traditional utility grids.
Generate your own electricity and gain energy independence with off-grid solar systems.
About Off-Grid Solar Systems
What Is an Off-grid Solar System?
An off-grid solar system is like your personal sunshine powerhouse. These cool setups use solar panels to grab the sun’s energy, store it in batteries, and voila – you’ve got electricity even when the sun’s taking a break.
They’re perfect for places where regular electricity isn’t easy to find – like cosy cabins, recreational vehicles (RV), or homes where the grid plays hard to get.
It’s all about bringing that sunny spark to wherever you are!
Differences
Differences Between Off-grid and On-grid Solar Systems
Access to Electricity
Off-Grid Solar Electricity Access
Off-grid solar systems operate independently of the conventional power grid, relying solely on solar energy captured during sunny periods and stored in solar batteries.
During periods of low sunlight, such as cloudy days or at night, access to electricity is limited or absent.
On-Grid Solar Electricity Access
On-grid solar systems remain connected to the traditional power grid. They offer continuous access to electricity.
During periods of insufficient solar energy, electricity needs are supplemented seamlessly from the grid, ensuring uninterrupted power supply.
Handling Excess Energy
Off-Grid Solar Electricity Access
Off-grid solar systems may generate surplus energy, particularly during peak sunlight hours.
This excess energy is typically stored in batteries for later use when solar production is insufficient, such as during nighttime or overcast conditions.
On-Grid Solar Electricity Access
On-grid solar systems allow users to feed surplus energy back into the grid rather than storing it locally.
Through mechanisms like net metering, users are compensated for the electricity they contribute to the grid.
Response to Power Outages
Off-Grid Solar Electricity Access
Off-grid solar systems operate autonomously and are unaffected by grid outages.
Even during power disruptions caused by storms, these systems continue to provide electricity without interruption, ensuring consistent service reliability.
On-Grid Solar Electricity Access
Grid-tied solar systems rely on the traditional power grid for electricity.
Consequently, during grid outages, these systems cease operation to prevent potential safety hazards for utility workers repairing power lines.
Electricity Billing
Off-Grid Solar Electricity Access
Off-grid solar system users do not receive conventional electricity bills since they are disconnected from the grid.
However, the initial setup costs for off-grid systems tend to be higher due to the need for battery storage and other equipment essential for standalone operation.
On-Grid Solar Electricity Access
Grid-tied solar system users may still incur minimal charges on their electricity bills, despite relying primarily on solar energy.
Solar energy production can help offset some of these charges, especially during peak demand periods, potentially resulting in cost savings over time.
Costs of an Off-grid Solar System
The typical price tag falls between SGD $45,000 – 65,000. However, it also depends on factors like system size, type, and components such as the inverter and solar charge controller. These impact performance, efficiency, and long-term function. So, let’s break down the big factors that make up the cost of your off-grid journey:
Cost by type
| System type | Average cost | |
|---|---|---|
| DC system | SGD $6,000 – 10,000 | |
| Hybrid system | SGD $10,000 – 50,000 | |
| Solar system with backup generator | SGD $40,000 – 70,000 |
Cost by components
| Component | Average cost | |
|---|---|---|
| Solar panels | SGD $4,000 – 14,000 | |
| Solar battery | SGD $4,000 – 14,000 | |
| Inverter | SGD $7,000 – 8,000 | |
| Solar charge controller | SGD $500 – 600 | |
| Backup generator | SGD $10,000 – 20,000 |
Benefits of an Off-grid Solar System
Energy independence
Going completely off-grid implies you rely solely on your self-generated electricity. This ensures that your home will run smoothly, even during emergencies, providing you with peace of mind and security.
Reduce carbon footprint
Off-grid solar systems leave a tiny environmental footprint when compared to old-school fossil fuels. They help reduce greenhouse gas emissions and reliance on non-renewable resources.
Lower energy costs
Once you’ve got your off-grid solar system up and running, you’ll love the fact that you can save significantly in the long run. With sunlight as a free and abundant energy source, you can wave goodbye to those hefty electrical bills!
Scalability
Off-grid solar systems are super versatile! You can customise them to match your energy needs, whether it’s for your cosy home, farm, or an industrial setup. The cool part? As your energy needs grow, you can easily expand and adapt them to keep up!
FAQ
Frequently asked questions
What is the drawback of off-grid solar systems?
The drawback of an off-grid solar system is that it typically requires a significant upfront investment in batteries for energy storage. These batteries can be expensive, have a limited lifespan, and may require regular maintenance.
Plus, on cloudy days, the power supply can be unreliable, which may be disruptive for those who need continuous electricity!
How many solar panels are needed to run a house off-grid?
Sizing your off-grid system involves calculating your daily electricity consumption, factoring in seasonal variations, and determining the number and capacity of solar panels and batteries required to meet your energy needs.
Contact us and our experts will be happy to help you with your system requirements and needs.
How much does an off-grid solar system cost?
To get an accurate estimate for your specific needs and location, get in touch with our solar experts. We can help assess your energy requirements, site conditions and other factors to provide a customised quote.
Thereafter, we’ll connect you with the right solar partners to facilitate your off-grid solar installation.
How many batteries do I need for an off-grid solar system?
For modest goals like trimming energy bills or powering a small space like a cabin or RV, a single battery may suffice. But if you’re looking to store as much energy as you can from your solar panels, two to three might be more reasonable. Aiming for complete off-grid independence might necessitate 8 to 12 backup batteries to reliably sustain your home’s energy demands.
Is an off-grid solar system worth it?
Off-grid solar systems are great if you want to live independently, using your own energy without relying on outside sources. They’re perfect for folks who love sustainability and self-sufficiency. However, we would recommend on-grid solar systems in Singapore, as you can receive credits for excess energy generated, leading to potential cost savings on your electricity bills.
Additionally, being connected to the grid allows for flexibility, as you can easily access electricity whenever needed, even during periods of low solar energy production.
