Long single-storey roofs, big blocks and tall eucalypts on the fence line. We map the shade before we count panels, then pair the array with a Sigenergy, GoodWe or Tesla battery. Our own A-Grade electricians, 11 minutes up the road in Somerville.
A Langwarrin house gives a solar designer more to work with than most. The suburb filled in through the 1980s and 1990s with brick homes on blocks larger than the Melbourne average, nearly all single storey, with long tile roofs and a double garage. What it also has is gum trees. Around the Flora and Fauna Reserve and McClelland Sculpture Park, and along a lot of back fences, eucalypts throw moving shade across one end of the roof for part of the day.
So the first job here is a shade map, not a panel count. We work out which faces are clear in the morning, which are clear after lunch, and wire the array so a shaded section does not pull the rest down. Sometimes the answer is to skip the obvious north face and load up the east and west. The three Langwarrin systems we have written up show how much the result varies: 6.65kW with a 30.6kWh battery on one home, 13.775kW added to an existing system on another, and 21.85kW with 45.2kWh on a busy family house.
Head east or south and the blocks turn into acreage and hobby farms, where three-phase supply, a shed roof and a long cable run change the design again. Whichever side of Langwarrin you are on, the layout and the fixed price come from a site visit, alongside the other work we do in Langwarrin.
The four pieces of a Langwarrin system, and what the suburb does to each of them.
Jinko Tiger Neo and Aiko panels placed on the faces that stay clear of the trees, with the stringing planned so one shaded group cannot limit the others. A long single-storey Langwarrin roof usually has room to move panels away from a problem tree instead of living with it.
Sigenergy SigenStor, GoodWe, Tesla Powerwall and Sungrow. Double garages make siting easy: the battery goes on a non-combustible wall near the switchboard with bollards where a car parks beside it. Modular units mean storage can be added later if the household changes.
On the acreage side of Langwarrin, three-phase supply is common and the best roof is often on the shed. We run the cable back to the main board, size the inverter to the supply, and can keep pumps and other essentials on backup circuits. One Langwarrin job used a 30kW three-phase inverter.
An older system on the roof does not have to come off. On one Langwarrin home we added 13.775kW of new panels and a Sigenergy battery, and tied the existing solar in through the gateway so the whole roof feeds one system.
The full range is on our products page.
Tier-one panels with 25-year performance warranties, laid out for the roof faces you have.
Hybrid and string inverters, chosen so a battery can join the system now or later.
Home batteries sized to the evening peak, with backup circuits set up for outages.
Home chargers wired into the same system and set to charge from your solar first.
The largest of our three Langwarrin systems, plus a Frankston tile roof and a three-phase Somerville home.
A busy family home with the heaters on and the kids home all holidays. 21.85kW of Jinko panels, 45.2kWh of Sigenergy storage behind an upgraded switchboard in the garage, a 270L iStore heat pump for hot water and an EV charger.
Next door in Frankston, 32 Jinko Tiger Neo panels on a tile roof with a Sigenergy hybrid inverter. The three battery modules sit directly behind the switchboard so the cable run stays short.
Thirty Jinko panels, north-facing and tilted, feeding a three-phase Sigenergy hybrid inverter and five SigenStor modules, with an EV charger on the same system. All of it in a single day.
One Langwarrin owner was quoted a two month wait elsewhere. He was in our schedule within a week and the system was installed and commissioned in a day. Lead times vary with the season and the site.
We look at every tree that can reach the roof, the shed if there is one, the switchboard and whether the supply is single or three-phase.
Each roof face is checked through the day. You see where the panels go and why some faces are left empty.
Panels, inverter, battery and any switchboard work in one after-discount price, with eligibility checked against your household.
We lodge the network application and the rebate paperwork. Most Langwarrin systems are on and running in one day.
Monitoring on your phone, backup circuits tested, and the Certificate of Electrical Safety issued before we leave.
Two are federal and apply to almost everyone. The third depends on your household.
Cheaper Home Batteries takes around 30 percent off an approved battery, with no income test. On the larger batteries Langwarrin homes tend to choose, it is the biggest line on the quote.
For eligible owner-occupiers, on solar panels and inverters only. The Solar Victoria battery rebate and battery loan both closed in 2025, so batteries now rely on the federal discount.
Federal small-scale technology certificates come off the panel price at the point of sale. Going electric on heating as well? See heating and cooling in Langwarrin, where a separate Victorian discount applies.
Langwarrin is the next suburb up the road from our Somerville depot, and we have three written-up systems here to show for it.
Nobody is asked to cut down a gum to make a layout work. The array is planned around the shade that is there.
Suburban tile roofs and acreage sheds are both everyday work for this crew, including long cable runs back to the main board.
Being 11 minutes away means site visits are quick to book, and the people who quoted are the people who come back if you want something added.
Solar Accreditation Australia accredited, a New Energy Tech Approved Seller, with our own A-Grade electricians on every job.
Live Google reviews. Look for the Sigenergy, GoodWe and Powerwall jobs.
Anything else, call 0466 355 441. You will get an electrician, not a salesperson.
Rarely. Shade usually reaches part of the roof for part of the day. We map it, put panels on the faces that stay clear, and wire the array so a shaded section does not hold back the rest.
It varies more here than in most suburbs. Our written-up Langwarrin jobs run from 6.65kW to 21.85kW, with batteries from 30.6kWh to 45.2kWh. Roof, shade and what the household runs decide it.
Yes, in a good way. Three-phase supply allows a larger inverter and more export, and a shed roof often gives a clear, unshaded array. We size the cable run from the shed to the main board at the site visit.
Usually. The battery and inverter are best near the main switchboard, and the shed array is cabled back to them. We check the distance and the trench route before quoting.
In most cases. We did exactly that on a Langwarrin home, adding 13.775kW of new panels and a Sigenergy battery and connecting the older system through the gateway.
The federal Cheaper Home Batteries discount, around 30 percent, applies. There is no Solar Victoria battery rebate or loan now. The Solar Victoria rebate and loan cover panels and inverters for eligible owner-occupiers.
We walk the block, map the shade and send a written quote with the layout, battery size, brands and the after-discount price. No obligation.
