What size solar system do I need in Adelaide?
It depends on how much power you use and when, not just your roof size. We size from your bills and interval data and check winter as well as summer, because Adelaide panels make about 2.4 kWh per kW a day in winter against about 5.8 in summer. Our guide on how many solar panels you need goes deeper.
How much does solar cost in Adelaide?
On typical NG Elec jobs in 2026, after rebates, incl GST, 5 to 6 kW of solar only starts from about $5,000. Solar with a battery starts from about $11,000, and most land between $14,000 and $25,000. Every quote is free and itemised, and $0 deposit options and flexible payment options are available. See our price guide and what solar costs in Adelaide.
Is there a solar rebate in South Australia?
Yes. Most home solar qualifies for the federal small-scale technology certificate (STC) incentive. We apply it directly on your quote, so there's nothing to claim later.
Do I need approval to connect solar in SA?
Yes. SA Power Networks approves every connection and sets your export limit. Single phase homes are usually limited to around 10 kW of inverter. We handle the application for you.
Should I add a battery now or later?
If the budget allows, doing both together means one install and one approval. If not, we fit a battery-ready hybrid inverter so you can add one later. Keep in mind the federal battery rebate steps down every January and July, next on 1 January 2027, and it's the install date that counts.
Do I still need solar if I get free power from 12 to 3?
For most homes, yes. The federal Solar Sharer offer gives free grid power from midday to 3pm in SA, but it's only three hours, it's capped at 24 kWh a day, and those plans usually have higher daily supply charges and peak rates. Solar covers your daytime use outside those hours, and with a battery, your evenings. Where the free window really helps is a small roof or a winter day: a battery can top up free between 12 and 3. See Solar Sharer free power.
Do you install outside Adelaide?
Yes, anywhere in South Australia. We're based in Hackham and have trusted install partners in the South East, Yorke Peninsula and Eyre Peninsula, with every job designed, managed and signed off by NG Elec. Recent installs include Hayborough (18.3 kW with a 35 kWh usable Sigenergy battery), Morphett Vale (12.75 kW with 24 kWh usable and blackout backup) and Myponga (11.4 kW with 26.3 kWh usable).
Who actually installs it?
Licensed electricians, on every job. Every system is designed, managed and signed off by NG Elec. We're SAA accredited, a Tesla Certified Installer and a Master Electricians member, with licence PGE285103 and $20M public liability cover.
