A township roof and an ordinary single-phase supply can carry far more than most quotes suggest. Our written-up Hastings install pairs 15.675kW of Jinko panels with 45.2kWh of Sigenergy storage. Designed and fitted by our own A-Grade electricians from Somerville, 13 minutes up the road.
Hastings is a Western Port town with a marina, a foreshore and a main street, and its housing reads like a town, not an estate. Back from the water the streets are weatherboard and brick homes from the 1960s through to the 1990s, with newer estates on the edges and blocks of units in between. Roofs are tin or tile, most are uncomplicated, and plenty have never had a panel on them.
The Hastings system we have written up shows what one of those roofs will take. Thirty-three Jinko panels went across a tin roof for 15.675kW, and five Sigenergy modules went into the garage for 45.2kWh of storage. The house is on single-phase power. That surprises people who have been told a battery that size needs three-phase. It does not. The family wanted the evening, the next morning and a grey day covered, so the storage was sized for that and the array was sized to fill it.
Two things about the location shape every design here. Salt air comes in off Western Port, so close to the marina and the foreshore we specify salt-rated mounting and outdoor gear and keep the battery under cover. And when the wind takes the power out on this side of the Peninsula, backup circuits are what keep the fridge and the lights going. Both are covered in the quote, alongside the other work we do in Hastings.
We start with how much power the house uses after dark and work back to the panels.
Jinko Tiger Neo and Aiko panels, clamped to the roof sheeting on a tin roof or bracketed under the tiles on a tile roof. Older Hastings homes often have one long ridge, which suits two clean runs of panels. Where the best face is short, we split the array across two faces and wire each on its own input.
Sigenergy SigenStor is modular, so storage goes up a module at a time until it matches the house. GoodWe, Tesla Powerwall and Sungrow are the alternatives. The garage is the usual spot, on the wall nearest the switchboard, with bollards if a car parks beside it.
One hybrid inverter manages the panels, the battery and the grid. On a single-phase supply the network limits what you can export, so a large array makes most sense with storage behind it. We lodge the connection application and set the export limit the network approves.
Boards in the older weatherboards and brick homes are often original. We check the board at the site visit and price any replacement into the same quote. Backup circuits are chosen with you: usually the fridge, lights, internet and a few power points.
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.
Each of these is a published case study with the full specification.
33 Jinko Tiger Neo III panels across a tin roof, a Sigenergy single-phase hybrid inverter and five SigenStor modules in the garage. The owner went big on solar and bigger on storage.
The same size array just south of Hastings, this time on a tiled hip roof with a three-phase Sigenergy inverter and four SigenStor modules.
An old 16-panel system on its third inverter came off. 38 Jinko Tiger Neo III panels, a GoodWe inverter and 41.6kWh of GoodWe storage in the carport took its place.
Hastings is close enough to the depot that a site visit rarely waits long.
Roof material and condition, which faces get sun, how close you are to the water, the switchboard, and where a battery can sit under cover.
We ask what runs after dark and what is coming: reverse cycle heating, a heat pump, an EV. The battery size comes from that.
A drawing of the panels on your roof, the inverter and battery models, and one price after the discounts that apply to you.
We lodge the network application and the rebate paperwork. The install is normally a day, two for the largest systems.
We switch the grid off at the board, show you the backed-up circuits running, set up the app and issue the Certificate of Electrical Safety.
Panels and batteries are funded by different programs. The quote shows each one against the item it applies to.
The Cheaper Home Batteries discount takes around 30 percent off an approved battery, with no income test. On a large battery it is the biggest line on the quote. There is no Solar Victoria battery rebate or battery loan. Both closed in 2025.
Small-scale technology certificates apply to the solar panels and come off the price at the point of sale. Nothing to claim afterwards.
The Solar Victoria rebate and interest-free loan cover solar panels and inverters for eligible owner-occupiers. Eligibility depends on the household and the property, so we check it before the quote goes out.
Our depot is at Speedwell Street in Somerville. Hastings is the next town along.
Every panel, battery and switchboard is installed by Powerband's own A-Grade electricians. We are SAA accredited and a New Energy Tech Approved Seller.
A 45.2kWh system on a single-phase Hastings home is already written up, with the owner's review. Ask us to walk you through it.
If the app shows something odd after a storm, a 13 minute drive is the difference between a visit this week and a ticket in a queue.
We also install the reverse cycle and heat pump hot water the battery will run, so the storage is sized with them in mind. See heating and cooling in Hastings.
Live Google reviews. Look for the Sigenergy, GoodWe and Powerwall jobs.
Prefer to talk it through? Call 0466 355 441 and you will speak to an electrician.
Larger than most people are told. Our Hastings case study runs 45.2kWh of Sigenergy storage on a single-phase hybrid inverter. The right size depends on what the house uses overnight, and we work that out from your bills.
Yes. Panels clamp or fix to the sheeting without lifting tiles, and the install is quick. We check the condition of the sheets and the fixings first, more carefully on older roofs close to the water.
It changes the specification. Near the water we use salt-rated mounting and outdoor gear and keep the battery and inverter out of direct weather. Further back into town it is a standard install.
Often, if you own the roof above your unit and have a wall for the battery. Where the roof is common property the owners corporation needs to agree first. We can supply the layout and details for that.
The circuits we set up as backup, usually the fridge, lights, internet and selected power points. With solar on the roof the battery recharges during the day while the grid is still down.
It can come later. We fit a hybrid inverter with the panels so a battery connects without replacing anything. The federal battery discount applies whenever it goes in, under the rules at that time.
A site visit, then a written quote with the panel layout, battery size, brands and the price after discounts. No obligation.
