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Solar potential in Williams Landing

Local solar output for Williams Landing, from satellite data, plus what Williams Landing homes usually need on the electrical side.

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Updated November 2026 · Litmec Electrical, REC-10383

A 6.6 kW north-facing solar system in Williams Landing makes about 9,400 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. Williams Landing ranks 38th 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 Williams Landing

Output per kW, north
1,417 kWh/yr
Output per kW, east / west
1,209 / 1,198
Best month, per kW
5.2 kWh/day (Jan)
Worst month, per kW
2.2 kWh/day (Jun)
Council
Wyndham City Council
Postcode
3027
From Litmec, Newport
about 12 km
Site visit
Free, no obligation
North-facingWest-facing
0123456Jan: 5.25 kWh a dayJan: 5.21 kWh a dayJanFeb: 4.92 kWh a dayFeb: 4.6 kWh a dayFebMar: 4.22 kWh a dayMar: 3.52 kWh a dayMarApr: 3.33 kWh a dayApr: 2.45 kWh a dayAprMay: 2.59 kWh a dayMay: 1.67 kWh a dayMayJun: 2.25 kWh a dayJun: 1.37 kWh a dayJunJul: 2.46 kWh a dayJul: 1.51 kWh a dayJulAug: 3.07 kWh a dayAug: 2.11 kWh a dayAugSep: 3.94 kWh a daySep: 3.09 kWh a daySepOct: 4.57 kWh a dayOct: 4.05 kWh a dayOctNov: 4.85 kWh a dayNov: 4.69 kWh a dayNovDec: 5.2 kWh a dayDec: 5.2 kWh a dayDec
Average daily output from 1 kW of panels in Williams Landing, by month (kWh). PVGIS 5.3, ERA5 2005–2023, 22.5° pitch, 14% losses.
Modelled for Williams Landing (-37.870, 144.747). Source: PVGIS 5.3 (European Commission Joint Research Centre), ERA5 data 2005–2023, 1 kW of panels with 14% system losses, at a 22.5° pitch. PVGIS.
SystemNorth-facing, kWh/yrEast-facing, kWh/yrWest-facing, kWh/yrJune, kWh/day
6.6 kW9,3537,9797,90614.8
8 kW11,3379,6729,58318.0
10 kW14,17112,09011,97922.5
13.2 kW18,70615,95915,81229.7

These figures use satellite and weather data for Williams Landing 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 Williams Landing

A 2010s estate of double-storey homes and townhouses. Modern switchboards are common, so the work is mostly about roof layout and battery placement.

Newer homes

Most Williams Landing homes are recent, so switchboards usually have room and safety switches already. The work is in the layout: estate roofs are often split into several smaller faces, and some estates have design guidelines for anything visible from the street.

What solar could save in Williams Landing

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 12 km from Williams Landing. 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 Williams Landing home

A few quick questions, using Williams Landing'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

  1. 1 Your bill
  2. 2 Your home
  3. 3 Your estimate
  4. 4 Roof and plans
  5. 5 Your details
Step 1: your bill

How much is your power bill?

Your bill covers
Got your bill handy? Use your exact figures
Step 2: your home

A bit about your home

Is anyone home during the day?
Do you already have solar?
Anything coming up? (tick any)
Power supply (check your switchboard or bill)

Your estimate

    How we worked this out

    We estimate your daily use from your bill and rates (about 30c per kWh and $1.10 a day supply unless you entered your own), then add typical loads for anything you ticked: about 6 kWh a day for an electric car, 4 for a pool pump and 6 for moving off gas.

    Solar output uses Melbourne's yearly average of about 3.5 kWh a day for each kW of panels. How much of it you use directly depends on who's home in the day; the rest charges a battery or is exported at about 4c per kWh.

    This is an indicative yearly average, not a quote. Roof direction, shading, your tariff and how you use power all change the result. An installer confirms every figure once they've seen your roof.

    Next: a few questions about your roof About a minute. Your answers and this estimate go to the installer, so you don't have to explain it all again.
    Step 4: your roof and plans

    Your roof and plans

    A few quick taps so an installer knows what they're looking at. If you're not sure, pick "Not sure" or skip it.

    What are you after?
    When would you like it done?
    What kind of home is it?
    How many storeys? (installers need this for safety gear and access)
    What's the roof made of? (have a look from the street)
    Does anything shade the roof? (trees, a taller house next door, a chimney)
    Roughly when was the home built? (older homes often need switchboard work first)
    What matters most to you? (tick any)
    How are you thinking of paying? (Solar Victoria offers interest-free loans to eligible homes)
    Step 5: your details

    Your details

    We'll call to book your free site visit, or outside about 100 km of Newport, a free assessment from your bill and roof photos. Your estimate and answers come with your details, so you won't have to explain it all again.

    How would you like to be contacted?

    Free and no obligation. We only contact you about this enquiry.

    Solar in Williams Landing: questions

    How much power do solar panels make in Williams Landing?

    Each kW of north-facing panels in Williams Landing makes about 1,417 kWh a year, so a 6.6 kW system makes about 9,400 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 Williams Landing?

    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 Williams Landing?

    Most Williams Landing 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 Williams Landing?

    Yes. Williams Landing is about 12 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 Williams Landing home?

    Size follows your power use. Most homes paying $350 to $600 a quarter suit 6.6 to 10 kW on single phase. Modern switchboards are common, so the work is mostly about roof layout and battery placement.

    See what your Williams Landing roof can do

    Free site visit from a licensed electrician: roof, shading and switchboard checked, options walked through.

    Get my free system design Call 0402 721 816