Factors Affecting Solar Panel Installation Cost
The upfront cost of any solar PV system (e.g. 6.6kW, 8.8kW) can vary from one customer to another depending on some core factors. Today, we are going to address the factors that affect solar panel installation cost in Victoria. Let’s dive right into them.
Important Factors
Impact of installer effort on solar panel installation cost
Many solar companies start by conducting an assessment to find out the level of complexity involved in the solar system installation process and the efforts required by the installer. They evaluate how complicated the installation is and what kind of work the installer needs to do. In some cases, the installation team visits the site or property (and then decide what kind of labor and skill level is required) before giving the customer a cost estimate.
Property type
The property type is one of the important and major factors that significantly impact the cost of solar panel installation. It encompasses multiple domains, ranging from building Storey types to building classification, whether it’s commercial or residential. Moreover, it includes the electrical configuration, such as switch board upgradation and three-phase or two-phase systems. Let’s understand how these property type factors affect the cost differences.
Solar panel installation cost for a single storey residential building
Installing solar panels on a single storey residential building is generally easier and less expensive compared to a double storey building. The simple roof design and easy access make the installation process straightforward.
For example, the installer can use a ladder to reach the roof and complete the job in a few hours (e.g. take a look at the image below. This is one of the jobs we completed for a single storey building). Connecting the inverter near the switchboard box is also uncomplicated. In contrast, double storey buildings often have more complex roof structures and access points, making the installation process more challenging and costly.
Double storey residential building
In the case of a double storey property, the solar company or installer needs to put additional effort. As seen in the image below (e.g. one of our double storey projects), a scissor lift is required to access the roof. Typically, the solar company charges the customer an additional $600 for the use of the scissor lift. The installation process itself also requires more effort, which leads to the installer charging a higher fee for double storey installations.
It’s important to note that if there is an alternative way to easily access the rooftop using a simple ladder, the need for a scissor lift and the associated $600 cost can be avoided. However, even in such cases, the installer may still charge extra for double storey installations due to the increased complexity and effort involved.
Single phase meters
Single-phase meters are suitable for residential and small commercial applications where the electrical load is typically distributed across a single phase.
If the solar installation is smaller in scale and the power generation capacity is within the limits of a single-phase meter, opting for a single-phase meter can be cost effective.
Three phase meters
Three-phase meters are better suited for larger-scale solar installations with higher power generation capacity. If the solar system is expected to generate a significant amount of power that exceeds the capacity of a single-phase meter, a three-phase meter becomes necessary.
While the upfront cost of three phase meters and associated components may be higher, they can accommodate the higher power requirements of the system, making them a more appropriate choice for larger installations.
Age of meter box
The meter box in the below picture appears to be of an older type. In such cases, solar companies often advise customers to upgrade or replace their switchboard. The cost of this upgrade typically ranges from $900 to $1500, which the customer would be responsible for paying.
Why to upgrade the meter box?
There can be following issues if we do not upgrade the aged/old meter box and install a new solar system:
- Compatibility
- Electrical safety
- Capacity
- Monitoring or control
Roof type and condition
Solar companies may vary their installation charges based on the type and condition of the roof. Different roof types, such as tile, terracotta, tin (colorbond), klip-lok, concrete, slate, and others, can present unique challenges and requirements for installing solar panels.
Roof types variation
The variations in roof types can affect the complexity of the solar system installation process eventually it’s cost, the materials needed, and the time required to complete the installation. For example, installing solar panels on a tiled roof may necessitate additional care to avoid damaging the tiles, while installing on a colorbond roof may require specialized mounting systems.
Condition of the roof
Furthermore, the condition of the roof can also impact the installation process and cost. If the roof is in good condition and structurally sound, the installation may proceed smoothly. However, if the roof requires repairs or reinforcement, additional work and materials may be necessary, leading to increased installation charges.
Please note that different roof types may require specific materials and equipment for proper solar panel installation. Considering these factors, solar companies may adjust their solar system installation cost.
System size and capacity
Solar panel installation charges are also dependent on the size of the PV system that the customer is getting.
As you move towards a larger PV size, your upfront cost will increase because a bigger solar system requires more time and effort to install. For example, a 5kW solar inverter with a PV size of 6.6kW costs $1300 (for a single storey, single phase setup), while a 6kW solar inverter with a PV size of 8.8kW costs $1900 (for a single storey, single phase setup).
Inverter, battery storage and solar panels selection
Choosing a Sungrow battery with a Sungrow solar inverter, as compared to Alpha ESS, for your solar system may directly affect the cost.
Similarly, if you opt for Canadian solar panels as compared to Longi, you may have to pay more because Canadian solar panels are slightly more expensive compared to Longi.
Distance from panels to the meter box
If there is long distance between solar panels and meter box, then solar company has to arrange long cables for connection which requires slightly higher cost.
Rebates or STCs
Learn more about solar panel rebates here at solar Victoria. Please note that solar rebates and STCs (Small-scale Technology Certificates) offered by state or federal governments may vary for different suburbs. Hence, this factor also affects the solar panel installation cost in Victoria.
Conclusion
In conclusion, the cost of solar panel installation in Victoria is influenced by various factors. Factors such as the complexity of the installation, property type, meter type, roof condition, system size, and equipment selection all play a role in determining the upfront cost. Additionally, the availability of rebates and STCs provided by the government can impact the overall installation cost. It is important for homeowners to consider these factors and consult with solar professionals to make informed decisions about their solar panel installation, taking into account both the financial implications and the long-term benefits of sustainable energy generation.
Get in touch with us
Contact us or send us an email at support@thesolarpedia.com to get a free solar panel installation quotation.
FAQs (Frequently Asked Questions)
Does a complex roof structure affect solar panel installation cost in Victoria?
Yes, a complex roof structure can affect the cost of solar panel installation in Victoria. The additional challenges and requirements associated with installing solar panels on a complex roof can result in higher installation costs.
What are the benefits of upgrading my meter box for a solar panel installation?
Upgrading your meter box for solar panels ensures safety, compatibility, and the ability to handle increased power capacity, while also enabling advanced monitoring and control features and future system expansions.
How do solar rebates and STCs work in Victoria, and how can they affect the overall cost of solar panel installation?
Solar rebates and STCs in Victoria provide financial incentives to homeowners for installing solar panels. These incentives can help reduce the upfront cost of installation by offering subsidies and allowing the value of STCs to be deducted from the overall cost.
