Solar potential in Altona
What solar would make on your Altona roof, what it could save, and what to check before you buy.
Updated November 2026 · Litmec Electrical, REC-10383
A 6.6 kW north-facing solar system in Altona makes about 9,500 kWh a year: around 35 kWh a day in midsummer and 15 kWh a day in June. East or west-facing roofs make about 85% of that.
On a $450 quarterly bill, that could save roughly $600–800 a year. Altona ranks 6th of the 38 Melbourne suburbs we've modelled for solar output, but the spread across Melbourne is only 3%: your roof's direction and shade matter far more than your postcode.
Solar output in Altona
- Output per kW, north
- 1,438 kWh/yr
- Output per kW, east / west
- 1,224 / 1,215
- Best month, per kW
- 5.3 kWh/day (Jan)
- Worst month, per kW
- 2.3 kWh/day (Jun)
- Council
- Hobsons Bay City Council
- Postcode
- 3018
- From Litmec, Newport
- about 5 km
- Site visit
- Free, no obligation
| System | North-facing, kWh/yr | East-facing, kWh/yr | West-facing, kWh/yr | June, kWh/day |
|---|---|---|---|---|
| 6.6 kW | 9,490 | 8,082 | 8,020 | 15.0 |
| 8 kW | 11,503 | 9,796 | 9,722 | 18.2 |
| 10 kW | 14,379 | 12,245 | 12,152 | 22.7 |
| 13.2 kW | 18,980 | 16,163 | 16,041 | 30.0 |
These figures use satellite and weather data for Altona from 2005 to 2023 and already allow for heat, wiring and inverter losses. They don't know your roof: shade, pitch and the faces available decide the real number, which is what the site visit checks. Try the roof calculator for your own direction and pitch.
Homes and roofs in Altona
Mostly postwar brick veneer and weatherboard homes from the 1950s to the 1970s, plus newer units and rebuilds. Plenty of single-storey hipped tile roofs with good open faces; near the Esplanade, salt air is a factor in choosing panels and mounting.
Salt air near the bay
Parts of Altona are close to Port Phillip Bay. Near the water we specify panels certified for salt-mist exposure (IEC 61701) and corrosion-resistant mounting hardware, because standard fittings corrode faster in salt air.
Older switchboards
A lot of Altona housing pre-dates the 1980s, so ceramic fuses, missing safety switches and old fibrous switchboard backings are common. These have to be fixed before solar connects. We're electricians: we check the board on the visit and price any work in the quote. Check your switchboard.
What solar could save in Altona
For a home paying $450 a quarter with someone in some days, the calculator suggests a 6.6 kW system saving about $600–800 a year, or $1,000–1,400 with a 10 kWh battery. Your own bill gives a better answer: use the calculator below.
How it works with Litmec
Litmec Electrical is a registered electrical contractor based in Newport, about 5 km from Altona. We sell the system, design it from your bills, organise the paperwork and rebates, and stand behind the whole system with a 5-year warranty. Accredited installers we subcontract and supervise fit the panels, and our own electricians do any switchboard work. Not sure what size you need? Try the system finder.
Nearby suburbs
Check your bill: solar for your Altona home
A few quick questions, using Altona's solar output. See the system that fits and what it could save, then get a free design and quote.
Building a new home? Skip the bill and send us your plans
Solar in Altona: questions
How much power do solar panels make in Altona?
Each kW of north-facing panels in Altona makes about 1,438 kWh a year, so a 6.6 kW system makes about 9,500 kWh a year, or 26 kWh a day on average. East or west-facing panels make about 85% of that. (PVGIS satellite data.)
Is solar worth it in Altona?
For most owner-occupied homes with a typical bill, yes. On a $450 quarterly bill with someone home some days, a 6.6 kW system could save roughly $600 to $800 a year. Small bills and heavily shaded roofs save less; the site visit tells you honestly.
Do I need council approval for solar panels in Altona?
Most Altona homes don't need a planning permit for rooftop solar. Heritage overlays, some estate design guidelines and owners corporations can add rules; we check for your address before quoting.
Does Litmec do solar in Altona?
Yes. Altona is about 5 km from our base in Newport and well within our 100 km service area. Site visits are free, and your contract and 5-year whole-of-system warranty are with Litmec Electrical.
What size solar system suits a Altona home?
Size follows your power use. Most homes paying $350 to $600 a quarter suit 6.6 to 10 kW on single phase. Plenty of single-storey hipped tile roofs with good open faces; near the Esplanade, salt air is a factor in choosing panels and mounting.
See what your Altona roof can do
Free site visit from a licensed electrician: roof, shading and switchboard checked, options walked through.