Solar panels installed across a tiled Sydney roof by Sinvesta Group.

Solar packages

Systems sized for real Australian roofs.

Premium panels, accredited installers. Outputs are yearly estimates for Sydney.

30-year output warranty
Accredited installers

Savings estimator

What could solar do to your bill?

Tell us your bill and your home. We size the system the same way our written proposals do, then show the savings month by month.

Your electricity bill $1,450

Before solar, including supply charges.

Your home

Recommended system

15kW

+ 45kWh battery

29 × 510W panels · 5 × 9 kWh Sigenergy modules

Premium large-scale residential or light commercial setup.

Closest package: 13kW + 36kWh →

Estimated bill reduction

per quarter

Saving per year: $0
Solar self-consumption: 0%
Usage covered by solar: 0%
Solar generated: 0 kWh/yr
Roof area needed: 0 m²

How this is worked out: your bill sets the system: under $600 a quarter, 6.6 kW + 13.5 kWh Tesla Powerwall; $600–$800, 10 kW + 27 kWh; $801–$1,000, 13 kW + 36 kWh; $1,001–$1,500, 15 kW + 45 kWh; over $1,500, a custom-engineered proposal. Usage is your bill ÷ 33c/kWh, solar yields 4.1 kWh per kW a day (Sydney), 83% of it is used on site and exports earn 5c/kWh. Your real result depends on your roof and tariff. See what the government adds in the rebate estimator.

Month by month

kWh per month

Consumption before solar
Consumption after solar
Solar generation

With solar and a battery working together, the power you buy sits close to zero all year.

Compare at a glance

Comparison of Sinvesta solar packages
System	Panels	Est. annual output	Inverter	Battery	Est. saving / yr	Price	Best suited to
6.6kW	13 × 510W	~9,920 kWh	Tesla integrated inverter	13.5 kWh Tesla Powerwall 3	up to ~$2,800	$14,500 $16,900incl. GST	1–4 person homes
10kW	20 × 510W	~15,260 kWh	10kW Sigenergy SigenStor	27 kWh SigEnergy	up to ~$4,400	$16,800 $19,200incl. GST	Larger family homes
13kW	26 × 510W	~19,840 kWh	Sigenergy SigenStor hybrid	36 kWh SigEnergy	up to ~$5,700	$19,500 $22,500incl. GST	High usage & EV homes
50kW	50 kW array	~75,100 kWh	30 kW	50 kWh	Site-specific	Request quote	Warehouse & retail
100kW	100 kW array	~149,700 kWh	50 kW	180 kWh	Site-specific	Request quote	Manufacturing & distribution
200+kW	Over 200 kW array	Modelled per site	100 kW	Over 200 kWh	Site-specific	Request quote	Enterprise, agribusiness & utility

Estimates use 4.1 kWh per kW of panels per day (Sydney, CEC zone 3). Your roof's pitch, orientation and shading will shift these figures — we model your specific site before quoting.

Residential

For the home.

Tesla Powerwall batteries and inverter wall-mounted in a garage by Sinvesta Group. — At the wall

Tesla Powerwall battery with solar panels — **Powerwall 3**13.5 kWh · integrated inverter

Residential

6.6kW

+ 13.5kWh battery

Small to medium homes · 1–4 people

The most common system in Australia, now paired with storage. A 6.6kW array covers the daytime load of an average household, and the 13.5 kWh Tesla Powerwall 3 holds the surplus for the evening instead of exporting it for a few cents.

Panels13 × 510W

Array output6,630 W

Est. annual generation~9,920 kWh

Battery13.5 kWh Tesla Powerwall 3, expandable

Avg. daily generation~27 kWh

Blackout backupSupported*

InverterTesla integrated solar inverter

Roof area needed~28 m²

Panel warranty30-year linear output

Request a quote

Fully installed including a Tesla Powerwall battery system. Estimated saving up to ~$2,800 a year, depending on your bill.

Battery can be expanded later without replacing it
Online monitoring set up on handover
STC rebate deducted from your quote

Estimate savings

Larger residential solar array photographed at dusk. — On the roof · 20 panels

Sigenergy SigenStor with three battery modules on a side wall, AC isolator and labelled conduit beside it. — At the wall

Sigenergy SigenStor with three battery modules, and solar panels — **SigenStor**27 kWh · 10kW inverter

Most popular

10kW

+ 27kWh battery

Larger family homes · ducted air-con, pool

Our best-value residential package. This is a full-service job: we review your actual energy usage, look at when you draw power, and size the array and the 27 kWh battery around how your household really runs rather than a number off a price list.

Panels20 × 510W

Array output10,200 W

Est. annual generation~15,260 kWh

Battery27 kWh SigEnergy, expandable

Avg. daily generation~42 kWh

Blackout backupSupported*

Inverter1 × 10kW Sigenergy SigenStor

Roof area needed~43 m²

Panel warranty30-year linear output

Request a quote

Fully installed including a 27 kWh SigEnergy battery system. Estimated saving up to ~$4,400 a year, depending on your bill.

Energy usage review before design
Finance available through our lending partners
Comfortably runs ducted air-conditioning

Estimate savings

Solar array on a metal roof with bird-proofing mesh around the panel edge. — On the roof · 26 panels

Sigenergy SigenStor battery installed along a side path, cabling and warning labels in place. — At the wall

Sigenergy SigenStor battery and solar panels — **SigenStor**36 kWh · hybrid inverter

Residential

13kW

+ 36kWh battery

High-usage households & EV owners

Outstanding performance for homes that run hard — multiple air-conditioners, a pool, a workshop, or an electric car in the garage. The 36 kWh battery gives enough storage to carry a heavy evening load.

Panels26 × 510W

Array output13,260 W

Est. annual generation~19,840 kWh

Battery36 kWh SigEnergy, expandable

Avg. daily generation~54 kWh

Blackout backupSupported*

InverterSigenergy SigenStor hybrid

Roof area needed~56 m²

Panel warranty30-year linear output

Request a quote

Fully installed including a high-capacity SigEnergy battery system (36 kWh). Estimated saving up to ~$5,700 a year, depending on your bill.

Covers home EV charging from daytime surplus
Tesla Powerwall 3 available instead
Three-phase compatible

See battery rebates

*Blackout backup depends on how your switchboard is configured. Savings use the same assumptions as the savings estimator above.

Commercial & industrial

For the business.

Commercial solar works because your load and the sun peak at the same time. Every kilowatt-hour you generate at 1pm is one you don't buy at your highest tariff. We install with CEC-accredited crews and flexible mounting for tin, tile and Klip-Lok.

Commercial

50kW

Medium commercial · warehouse & retail

High-efficiency multi-inverter configuration for large roofs, engineered and commissioned to suit the site.

Panel output50 kW

Inverter capacity30 kW

Battery capacity50 kWh

FinanceFinance available

Structural assessment included
Large-scale monitoring & reporting

Request a quote

Commercial

100kW

Large industrial · manufacturing & distribution

For warehouses, factories and large sites, designed around your roof and load and commissioned in stages so operations keep running.

Panel output100 kW

Inverter capacity50 kW

Battery capacity180 kWh

FinanceFinance available

Structural assessment included
Grid application handled for you

Request a quote

Custom engineered

Over 200kW

Enterprise · factories · agribusiness · utility

A custom industrial solution: array, storage and grid connection engineered as one project, from feasibility to network approval.

Panel outputOver 200 kW

Inverter capacity100 kW

Battery capacityOver 200 kWh

FinanceFinance available

Dedicated project engineer
Grid-tie & network approval handled

Request custom quote

Solar panels installed on a dark tiled roof in a Sydney suburb, lit by late-afternoon sun.

Not sure which size fits?

We also design industrial systems beyond the standard packages — multiple arrays, three-phase, and staged commissioning. Send us your roof plan and twelve months of consumption data and we'll model it properly.

Talk to us about a custom system

Every package

What you get, whichever size you pick.

30-year panel warranty

Linear output warranty on Tier 1 modules, backed by manufacturers with Australian support.

Online monitoring

Watch production and consumption in real time from your phone. We set it up before we leave.

Rebate handled

STCs are deducted from your quoted price up front — you never pay it and claim it back later.

CEC-accredited install

Licensed electricians, compliant workmanship, and the electrical certificate supplied on completion.

Battery-ready

Residential systems are wired so adding storage later is straightforward, not a rebuild.

Finance options

Spread the cost through our lending partners. Terms come from the lender — we'll walk you through them.

No obligation

Not sure which size fits?

Send through your last power bill. We'll model your usage against your roof and come back with the size that actually pays — not the biggest one we can sell you.

Get my free quote Call 0415 301 979