Written by a licensed electrician

Solar and electrical guides.

Straight answers on solar, batteries, rebates and electrical work in South Australia, written by our team. Start with the battery rebate, sizing and cost guides, or browse by topic.

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NG Elec
The short answer

Plain-English advice from the NG Elec team on solar, batteries, rebates, the Solar Sharer free power window and electrical work in South Australia, with real 2026 prices from our own jobs.

Advice

Solar and batteries.

Sigenergy battery and inverter installed on a brick wall at an Adelaide home
7 min readHow much do solar and batteries cost in Adelaide in 2026?In 2026, a typical NG Elec solar and battery system in Adelaide costs about $14,000 to $25,000 after rebates, incl GST, starting from about…
Sigenergy home battery installed in an Adelaide garage by NG Elec
6 min readSolar Sharer: three hours of free power in SA, and how to use it with a batterySolar Sharer is a federal government offer. Since 1 July 2026, SA retailers must offer at least one plan with at least three free hours of…
Sigenergy home battery installed in an Adelaide garage by NG Elec
6 min readSolar battery rebate in South Australia: how it works in 2026South Australian homes get the federal Cheaper Home Batteries Program. It's paid through small-scale technology certificates (STCs), so an…
Sigenergy battery and inverter on a brick wall under the eaves of an Adelaide home
7 min readWhat size solar battery do I need for an Adelaide home?Size a solar battery to your evening and overnight use. Many Adelaide homes use roughly 8 to 15 kWh between sunset and sunrise, so 10 to 20…
Sigenergy home battery installed in an Adelaide garage
7 min readBest solar battery in Adelaide: Sigenergy vs Sungrow vs TeslaThe best battery is the one sized to your overnight use, with the backup you need and a good match to your inverter. For most Adelaide…
Sigenergy battery and inverter added to an existing solar system on a brick wall
6 min readCan you add a battery to your existing solar system?Almost any solar system can take a battery. You either add a battery with its own inverter next to your existing one (AC coupling) or…
Rear of an Adelaide brick home with a solar array on a dark roof
7 min readSolar battery payback in Adelaide: how to work it outPayback equals the installed cost after the federal battery rebate, divided by your yearly saving. The yearly saving is roughly the kWh the…
Three Tesla Powerwalls installed side by side on a rendered wall
6 min readTesla Powerwall installation in Adelaide: what to knowTesla Powerwall is a single-unit home battery with 13.5 kWh usable per unit, according to Tesla. Installing one in Adelaide means a site…
Rows of solar panels on a grey corrugated roof in the Adelaide foothills
6 min readHow many solar panels do I need in Adelaide?Many South Australian family homes suit somewhere around 6.6 to 13 kW of solar. A family using 15 to 25 kWh a day usually suits 6.6 to 10…
Solar panels installed on a silver corrugated roof under a blue Adelaide sky
7 min readSolar panel installation cost in Adelaide: what drives the priceSolar panel installation in Adelaide starts from about $5,000 for a 5 to 6 kW system on typical NG Elec jobs in 2026, after the STC…
Angled aerial of an Adelaide home with two solar arrays and the NG Elec crew at work
7 min readWhat affects your quote for solar panel installation, and how to compare quotesA solar quote depends on system size, roof type and layout, shading, panel and inverter brand, whether a battery is included, switchboard…
NG Elec crew finishing a solar install, seen from above
7 min read5 signs you've found the best solar company in AdelaideA good Adelaide solar company sizes the system from your bills, names the panel and inverter brands, holds an electrical contractor licence…
Angled aerial view of a home with two solar arrays on different roof faces
6 min readWhat's the best angle for PV panels for better solar output?For maximum yearly output in Adelaide, face PV panels north at roughly 30 to 35 degrees. Flatter panels favour summer and steeper ones…
Aerial of an off-grid property with a shed solar array, ground-mounted panels and work vehicles
7 min readOff-grid solar installation in South Australia: costs and what you needTo go off-grid in South Australia you need a solar array sized for June and July, not summer, a battery sized for your overnight use plus…

Advice

Care and repairs.

Thermal image of solar panels showing bright hot spots on damaged cells
6 min readHail damage on solar panels: how to check, what to do and how to claimAfter a hail storm, stay off the roof, check your monitoring app and inverter for errors or lower output, and photograph any visible damage…
Rows of solar panels on a grey corrugated roof in the Adelaide foothills
6 min readWhen should you schedule solar panel maintenance in Adelaide?For most Adelaide homes, a yearly solar check in late spring (October to November) is the right rhythm. Adelaide's dry summers let dust…
Solar panels on a silver corrugated roof under blue sky
6 min readHow to protect solar panels from birdsSeal the gap under your solar panels with bird-proofing mesh fixed to the panel frames, with no drilling into panels. Clean out any nests…
Inverter and battery mounted on a brick wall under the eaves
6 min readHow to connect a Sungrow inverter to WiFiStand near the inverter with your WiFi name and password. Open the iSolarCloud app and find the WLAN or network configuration option.…

Advice

Grid, VPPs and electrical.

Sigenergy home battery installed in an Adelaide garage
6 min readVirtual power plants in South Australia: are they worth it?A virtual power plant links lots of home batteries so a retailer or operator can draw on them when the grid needs power, usually paying you…
Rows of solar panels on a grey corrugated roof in the Adelaide foothills
6 min readSA Power Networks solar export limits and approvals explainedSA Power Networks (SAPN) runs the electricity network in South Australia, so it approves solar and battery connections and sets export…
Rear of a brick home with a solar array on a dark roof
7 min read7 warning signs your switchboard needs upgrading in AdelaideYou should upgrade a switchboard when it has old ceramic fuses, no safety switches (RCDs), frequent tripping, heat or a burning smell,…
Rear of a brick home with a solar array on a dark roof
6 min readThree-phase power upgrades: when does an Adelaide home or business need one?Most Adelaide homes run on single phase, which is fine for everyday use. A three-phase upgrade makes sense when you want solar above about…
Angled aerial of a home with two solar arrays and an NG Elec crew working
7 min read7 things to consider before installing an EV charger at homeBefore installing a home EV charger, check seven things: your switchboard and supply capacity, the charging speed your car accepts, where…
Rear of a brick home with a solar array on a dark roof
7 min readWhat size split system do I need for an Adelaide home?For a typical Adelaide room with 2.4 m ceilings and decent insulation, allow about 0.125 to 0.15 kW per square metre. That's roughly 2 to…
Large solar array across a commercial roof
7 min readWhat should a commercial electrical maintenance schedule cover?A commercial electrical maintenance schedule covers switchboards, RCD safety switches, emergency and exit lighting, fixed wiring and power…

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