Short answer: Before solar panels or a battery, check that your switchboard has spare space, modern circuit protection with safety switches, sound earthing and room for the inverter and battery connections. Older Inner West boards with ceramic fuses or no spare space often need an upgrade first. If you want backup power, plan which circuits go on the backup side. The federal Cheaper Home Batteries Program gives about a 30% discount on eligible batteries through accredited installers.
Solar and batteries are a big investment, and the installer’s first look is usually at your switchboard. If it’s old, cramped or full, the job can stall or need extra work on the day. Here’s how to get your board ready, and how to avoid surprises in an older Inner West home.
Why the switchboard matters
Solar inverters and batteries connect into your switchboard. They need:
- space for new circuit breakers, isolators and sometimes monitoring equipment
- safety switch protection and modern breakers on the circuits they connect to
- good earthing
- correct labelling and isolation for anyone working on the system later
Many solar and battery installers won’t connect to an old ceramic fuse board, and some will require an upgrade before going ahead.
Readiness checklist
| Check | Ready | Needs work |
|---|---|---|
| Circuit protection | Circuit breakers with safety switches | Ceramic fuses, no safety switches |
| Space | Several spare spaces | Board full, no room to expand |
| Enclosure | Sound, with room for additions | Cracked, crowded, small meter box |
| Backing board | Modern | Older bituminous board that may contain asbestos |
| Earthing | Tested and sound | Unknown or old |
| Labelling | Clear circuit labels | Unlabelled or wrong |
| Future loads | Room for EV, induction, heat pump | No plan for more circuits |
If you have a black backing board, SafeWork NSW explains that boards installed before 1987 may contain asbestos and shouldn’t be drilled. That affects how new equipment can be mounted.
Battery backup: plan your circuits
Many batteries can supply backup power during an outage, but often only to selected circuits. Decide which ones matter to you:
- fridge and freezer
- lights
- internet modem and a few power points
- medical equipment, if relevant
Large loads like ovens, air conditioning and hot water are often left off backup. Your switchboard may need to be rearranged into “backup” and “non-backup” sections, which is much easier during an upgrade.
Batteries: the federal discount
The federal Cheaper Home Batteries Program offers about a 30% discount on eligible small-scale batteries connected to new or existing solar. The discount is provided through the installer, who must be accredited by Solar Accreditation Australia, and the battery must be on the approved list. The program has changed over time and the discount reduces towards 2030, so check the current details.
In NSW, the battery installation discount that applied previously is no longer available, but the NSW virtual power plant (VPP) incentive can be combined with the federal discount if you join an eligible VPP.
Who does what
- Solar and battery installer (accredited): designs the system, installs panels, inverter and battery, and claims the discount
- Licensed electrician: switchboard upgrades, circuit rearrangement, earthing, and any extra circuits
- Level 2 Accredited Service Provider or retailer: network-side work like meter changes or supply upgrades
Blue Link is not Level 2 accredited and isn’t a solar accredited installer. We prepare your switchboard and wiring so your chosen solar or battery installer can connect, and we tell you upfront if any network-side work is needed. See what is a Level 2 electrician.
Think about the whole electric home
If you’re adding solar and a battery, you might also be planning:
- an EV charger, see choosing a home EV charger
- an induction cooktop, see induction wiring requirements
- heat pump hot water, see heat pump electrical requirements
- surge protection for the inverter and electronics, see is surge protection worth it?
Plan the switchboard for all of them at once. One upgrade is cheaper and neater than three.
Getting quotes for solar or a battery? Have your switchboard checked first. We do switchboard upgrades that leave room for solar, batteries and future loads. Call 0421 772 661.
Costs and financing
For typical switchboard upgrade ranges and cost factors, see switchboard upgrade cost in Sydney. The NSW Government’s switchboard upgrade page explains why upgrades are often needed when homes electrify.
We prepare switchboards for solar and batteries in Marrickville, Dulwich Hill, Croydon Park and Stanmore.
Frequently asked questions
Do I need a switchboard upgrade for solar?
Not always. If your board has ceramic fuses, no safety switches or no spare space, an upgrade is often needed. An electrician or your solar installer can check.
Does a home battery need a new switchboard?
Sometimes. Batteries with backup often need circuits rearranged into backup and non-backup sections, which may require a larger or new board.
How much is the federal battery discount?
The Cheaper Home Batteries Program offers about a 30% discount on eligible batteries through accredited installers, reducing over time. Check the current details on the Australian Government’s website.
Can any electrician install solar panels?
For the government discounts, solar and battery systems need an installer accredited by Solar Accreditation Australia. A licensed electrician can prepare the switchboard and wiring.