Most people are surprised by how quickly the actual installation happens — and how long the paperwork takes. Here's a realistic breakdown of the whole process.
The Full Timeline: Sign to Switch-On
Week 1–2: Quote and sign
After you accept a quote, the company typically does a final site assessment (if they haven't already) and orders your equipment. Popular panel and inverter models can sometimes be in stock; less common configurations may need to be ordered in.
Week 2–4: Scheduling the installation day
Most reputable installers are booked 1–3 weeks out. In peak times (post-rebate announcements, summer), this can stretch to 4–6 weeks. Rush installs are sometimes available for a premium.
The installation day itself: 4–8 hours
For a standard residential system on a single-storey home, the physical installation typically takes one day. A team of 2–3 people will:
- Mount the racking system on your roof
- Install the panels
- Run DC cabling from panels to inverter location
- Install the inverter (usually near your switchboard)
- Connect to your switchboard
- Commission the system and test output
- Set up your monitoring app
Complex installs — multi-storey homes, difficult roofs, large systems, battery additions — may take two days.
After installation: grid connection approval (1–10 business days)
This is where most people get caught out. The system is physically installed and working, but you legally cannot export to the grid until your electricity distributor (not your retailer — your network operator) approves the connection. This paperwork is submitted by your installer and typically takes 1–10 business days.
During this period, your system is generating electricity and you can use it for self-consumption. You just can't export yet.
Metering change: 1–15 business days
Your electricity meter needs to be upgraded to a smart meter (if you don't already have one) to track both import and export. Your retailer arranges this — timelines vary significantly by state and retailer. Some happen within days; others can take 2–3 weeks.
Total Time From Signing to Exporting
Realistically, allow 4–8 weeks from signing your contract to your system being fully operational and exporting to the grid. In Victoria and some other states where smart meters are already prevalent, it's faster. In areas still rolling out smart metering, it can take longer.
What Can Cause Delays
- Equipment availability: If you're getting a specific premium panel brand that's temporarily out of stock, this adds time. Ask your installer about stock availability when signing.
- Heritage-listed properties or strata buildings: These require additional council or body corporate approvals and can take weeks or months.
- Switchboard upgrade required: If your switchboard isn't compatible, this needs to be done first — either by the solar company or a separate electrician.
- Network congestion: Some suburbs have congested distribution networks, and your distributor may impose export limits or require upgrades before approving connection. Your installer should know if your area has known issues.
- Weather: Installers can't work on roofs in rain or high wind. Wet periods can push schedules back.
What You Need to Do
Honestly, not much. The main things required from you:
- Be home (or have someone home) on installation day
- Ensure the installer has clear access to your roof and switchboard
- Notify your electricity retailer that you're installing solar (your installer often does this for you)
- Download the monitoring app and check your system is performing after installation
Start by Knowing Your Numbers
Before you even start the quote process, it's worth knowing what your electricity costs you and what solar is realistically worth to you. Upload your bill to GridBeater — free and takes 60 seconds.
See what solar saves you → Upload your bill free at GridBeater