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13.3kW Solar + 32.2kWh Battery in Cashmere, Brisbane

A Cashmere family installed a modern solar and battery system, now generating 364% of their household energy needs.

The Story

For this Cashmere home, the decision to go solar came down to long-term value. With energy prices only heading in one direction, they wanted a system sized to eliminate most of their electricity bill from day one.

Connect Energy delivered a 13.3kW solar system with 32.2kWh of integrated battery storage, designed to maximise self-consumption year round.

“System Installed 13.3kW (28 panels total) – 15kW 3 Phase Inverter – 32.24kWh Battery.

Great experience from start to finish. The team was professional, efficient, and easy to work with, delivering high-quality results that met all requirements. Communication was clear throughout the process, and everything was completed on time.
Highly recommend this team—professional, honest, and top-quality workmanship. Thank you Brett and Leonie. Special thank you to Cameron and Michael for their meticulous installation and Grant for assisting with the right set up for our needs.”

The Solution

Connect Energy installed a complete solar and battery solution for this Cashmere home, selecting premium equipment suited to the site’s generation profile.

Solar Panels
28 x LONGi 475W
LONGi Hi-MO X10 475W
25yr product / 30yr performance warranty

Inverter
Sigenergy 15.0kW
SigenStor EC 15.0TP (Sigenergy)
10yr warranty

Battery
4 x Sigenergy 8kWh
32.2kWh total storage
10yr warranty

System Performance

The system generates 19,463 kWh per year, with the battery storing excess daytime generation for evening and overnight use. This covers 364% of the household’s annual energy consumption.

Monthly Generation (kWh/day)

70
Jan
61
Feb
55
Mar
45
Apr
34
May
33
Jun
37
Jul
47
Aug
58
Sep
61
Oct
68
Nov
72
Dec

Financial Impact

This system significantly reduces the household’s electricity costs, with savings that grow as energy prices rise.

$90,021+
Estimated Lifetime Bill Savings (20 years)
$15,200+
Government Rebates Applied

364%
Annual Generation vs Household Use

Government incentives applied to this project included Small-scale Technology Certificates (STCs) and the Queensland Cheaper Home Batteries Program, which together reduced the upfront cost by over $15,200.

Environmental Impact

16 tonnes
CO₂ reduced per year

3,007
Trees planted equivalent

356
Long-haul flights avoided

Frequently Asked Questions

How much can a 13kW solar system with battery save in Cashmere, Brisbane?
A 13.3kW solar system with 32.2kWh battery in Cashmere generates approximately 19,463 kWh per year, covering 364% of typical household energy usage. Homeowners can expect significant annual savings on their electricity bills.

What solar rebates are available in Brisbane?
Brisbane homeowners can access Small-scale Technology Certificates (STCs) and the Queensland Cheaper Home Batteries Program, which together can reduce upfront costs significantly on a system with battery storage. Connect Energy handles all rebate paperwork as part of the installation.

Can I add battery storage to my existing solar system?
Yes. Connect Energy frequently upgrades existing solar systems with modern battery storage. In many cases, adding a battery alongside a panel upgrade maximises your investment and allows you to store excess generation instead of exporting it at minimal feed-in rates.

Related Services

Interested in a similar setup for your own home or business? Explore our Solar Battery Storage and Solar Panel Installation service, or browse more Brisbane solar & battery case studies.

Connect Energy delivers comprehensive residential, commercial, and industrial solar solutions across Brisbane. From custom installation to ongoing maintenance, we empower communities with reliable, sustainable power.