Thinking About Solar? Here’s Exactly What to Expect
If you’re thinking about installing a solar power system for your home or business, you’ve probably come across a lot of conflicting information. How do you choose the right system? What size do you need? And who should install it?
We get these questions every day at PV Spark. So we decided to create the ultimate guide — a clear, step-by-step breakdown of what the solar installation journey looks like in 2025.
Whether you’re powering your home in Perth or your café in regional WA, this guide will help you make informed choices and avoid common pitfalls — all while getting the most value from your investment.
Understanding the Basics of a Solar PV System
Before we get into the installation steps, let’s quickly cover the components that make up a solar system.
Core Components:
- Solar Panels: These sit on your roof and convert sunlight into electricity.
- Inverter: Converts the DC energy from panels into usable AC power for your home.
- Battery (Optional): Stores excess energy for night-time or blackout use.
- Mounting System: Holds your panels in place, angled for optimal sun capture.
- Monitoring Tools: Allow you to track energy production and savings in real time.
Step-by-Step Installation Process
Installing solar isn’t just about screwing panels onto your roof. There’s a structured process behind every successful setup — and we’ve fine-tuned it to make things simple and stress-free.
Step 1: Initial Consultation & Energy Analysis
We start by asking about your energy habits — How big is your household? What’s your average bill? Do you use power mostly during the day or evening?
Then, we look at:
- Recent electricity bills
- Property location (sunlight exposure, roof orientation)
- Future plans (EVs, pool pumps, air con upgrades)
Step 2: System Sizing & Design Proposal
Based on your energy use and goals, we’ll suggest system sizes like:
- 6.6kW – Most popular for homes
- 13.2kW – Ideal for large homes or home offices
- 20kW to 100kW – Best for commercial sites
We then create a detailed quote showing:
- Panel layout on your roof
- Expected daily/monthly production
- Estimated savings & ROI
- Warranty and product details
Check our Residential Solar Packages
Step 3: Site Inspection & Structural Assessment
Our in-house team will visit your property to:
- Check roof condition & accessibility
- Inspect switchboard compatibility
- Confirm space for inverter and optional battery
We ensure your roof can handle the system and that everything complies with Australian electrical safety standards.
Step 4: Approvals & Paperwork
PV Spark handles all the admin work so you don’t have to.
- Apply for STCs (government rebate)
- Secure grid connection approval with your energy distributor
- Manage all compliance docs with Clean Energy Council (CEC)
💡 Did you know? STCs can reduce system costs by $2,000–$4,000, depending on your system size.
Step 5: Installation Day
Once approvals are done, we lock in a date for your install — typically 1 day for homes and 2–3 days for commercial sites.
What you can expect on install day:
- Panels mounted using corrosion-resistant racking
- Inverter installed in a shaded, accessible location
- Wiring safely connected and tested
- Switchboard upgrades (if needed)
- System turned on and commissioned
All work is done by CEC-accredited installers with years of experience.
Step 6: System Activation & Monitoring
We’ll connect your system to your home Wi-Fi and set up your monitoring dashboard.
- Fronius Solar.web
- Sungrow iSolarCloud
- Tesla App (for Powerwall)
You can view energy generation, self-use percentage, grid exports, and savings right from your phone.
Step 7: Post-Install Support & Maintenance
Solar systems are low-maintenance, but we recommend:
- Annual panel cleaning to remove dirt and debris
- Performance check every 2–3 years
- Occasional inverter firmware updates
We offer affordable maintenance plans to keep your system at peak performance for years.
Choosing the Right Installer — Why It Matters
Solar is a long-term investment, and installation is not something you want to skimp on. Choosing the right installer impacts:
- Safety (incorrect wiring = fire risk)
- Performance (poor roof angles = lost efficiency)
- Warranty (invalid if not CEC-installed)
At PV Spark, we’ve completed 3,000+ successful installs and only use Tier 1 panels and CEC-accredited teams.
Avoiding Common Installation Mistakes
Here are some of the most common pitfalls we see — and how to avoid them:
❌ Going too small or too big: A poorly sized system can waste money or fail to meet your needs.
❌ Choosing cheap, unknown brands: You’ll end up replacing them in a few years.
❌ DIY Installation: Not only dangerous — it voids warranties and could violate council rules.
Need help choosing? Our Solar Calculator makes it easy to size your system.
What’s the Installation Cost in 2025?
Here’s a ballpark idea of what to expect (after rebates):
| System Size | Avg. Cost (After STCs) |
| 6.6kW | $4,500 – $6,000 |
| 10kW | $7,000 – $9,000 |
| 13.2kW | $8,000 – $11,000 |
| 20kW | $13,000 – $18,000 |
| 50kW+ | Custom Quote |
Add-ons like batteries can raise total cost, but rebates (like the WA Battery Subsidy) can offset this.
How Long Will It Take?
From consultation to switch-on:
- Residential Systems: 2–4 weeks
- Commercial Projects: 3–8 weeks (varies with approvals, size)
We’ll keep you updated every step of the way.
FAQs About Installation (2025 Edition)
Q: Do I need council approval?
A: Usually no — unless in a heritage or strata building. We’ll check for you.
Q: Will the power be off during install?
A: Only for about 30–60 minutes while connecting to the switchboard.
Q: What happens on cloudy days?
A: Your system still generates power, just at reduced capacity.
For more: Visit our FAQs Page
Final Thoughts: Solar Installation Made Easy with PV Spark
By now, you should feel confident about how the solar installation process works — and more importantly, how PV Spark makes it simple, stress-free, and value-packed. From helping you choose the right products to handling the rebates, wiring, and aftercare — we do it all. And we’ve done it for thousands of happy Aussie homes and businesses