Solar potential in Mortlake
What solar would make on your Mortlake 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 Mortlake makes about 8,900 kWh a year, about 6% less than Melbourne: around 34 kWh a day in midsummer and 14 kWh a day in June. East or west-facing roofs make about 87% of that.
On a $450 quarterly bill, that could save roughly $550–750 a year. Mortlake ranks 423rd of the 429 places across Victoria we've modelled for solar output.
Solar output in Mortlake
- Output per kW, north
- 1,350 kWh/yr
- Output per kW, east / west
- 1,169 / 1,152
- Compared with Melbourne
- -6%
- Best month, per kW
- 5.2 kWh/day (Jan)
- Worst month, per kW
- 2.1 kWh/day (Jun)
- Council
- Moyne Shire
- Postcode
- 3272
- Region
- Western District
| System | North-facing, kWh/yr | East-facing, kWh/yr | West-facing, kWh/yr | June, kWh/day |
|---|---|---|---|---|
| 6.6 kW | 8,911 | 7,713 | 7,602 | 13.9 |
| 8 kW | 10,802 | 9,349 | 9,214 | 16.8 |
| 10 kW | 13,502 | 11,686 | 11,518 | 21.0 |
| 13.2 kW | 17,823 | 15,426 | 15,204 | 27.7 |
These figures use satellite and weather data for Mortlake 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. Try the roof calculator for your own direction and pitch.
Solar in the Western District
South-west Victoria is cooler and cloudier in winter than Melbourne, but long spring and summer days still give good yearly output. Many homes sit on bigger blocks or farms, and properties a long way down rural lines can have tighter export limits, which makes using solar on site, or storing it, more valuable.
The Western District is on the Powercor network. Your distributor sets how much you can export and approves the connection; we apply for you before anything is ordered.
Acreage, sheds and pumps
Around Mortlake, many properties have sheds, bores or pumps and long distances between buildings. Panels can go on a shed roof or a ground frame, cable runs are designed to keep voltage drop within the wiring rules, and daytime pumping is one of the cheapest ways to use your own solar. Some rural lines (including SWER lines) have tight export limits, which we confirm before you commit. Solar for rural properties.
Backup when the power goes out
Properties around Mortlake can be on long rural lines that are exposed to storms and bushfire. Standard solar switches off in a blackout; a battery with backup wiring keeps the fridge, lights, internet and water pump running. How battery backup works.
What solar could save in Mortlake
For a home paying $450 a quarter with someone in some days, the calculator suggests a 6.6 kW system saving about $550–750 a year, or $1,000–1,350 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, Melbourne, and sells solar and batteries across Victoria. For homes in Mortlake we start with a free assessment: your bills, photos of your roof and switchboard, and satellite imagery. You get a written design and quote, we apply to your distributor to connect, and an accredited installer checks the site before anything is installed. Your contract and the 5-year whole-of-system warranty are with Litmec. Not sure what size you need? Try the system finder.
Nearby
Check your bill: solar for your Mortlake home
A few quick questions, using Mortlake'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 Mortlake: questions
How much power do solar panels make in Mortlake?
Each kW of north-facing panels in Mortlake makes about 1,350 kWh a year, so a 6.6 kW system makes about 8,900 kWh a year, or 24 kWh a day on average. East or west-facing panels make about 87% of that. (PVGIS satellite data.)
Is solar better in Mortlake than in Melbourne?
In the model, panels in Mortlake make about 6% less than Melbourne. Mortlake ranks 423rd of the 429 Victorian locations we've modelled. Roof direction and shade still matter more than location: east or west panels cost about 15%, and a shaded roof can cost more.
Is solar worth it in Mortlake?
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 in Mortlake could save roughly $550 to $750 a year. Bigger bills, electric heating and daytime loads save more.
Does Litmec install solar in Mortlake?
Yes. We sell, design and warrant solar and battery systems across Victoria, including Mortlake. We start with a free assessment from your bills and roof photos, and an accredited installer checks the site before installation. Your contract and 5-year warranty are with Litmec Electrical.
Can solar keep my power on during outages in Mortlake?
Only with a battery designed for backup. Standard solar shuts down in a blackout. A backup-capable battery keeps chosen circuits, such as the fridge, lights, internet and water pump, running, and the panels recharge it in daylight.
Who is the electricity distributor in Mortlake?
The Western District is on the Powercor network. The distributor sets export limits and approves the connection; we apply on your behalf before the system is ordered.
See what your Mortlake roof can do
Free assessment from a registered electrical contractor: your bill, your roof and your switchboard, with a written design and quote.