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14.25kW Solar + 40.3kWh Battery in Maryvale, Brisbane

A Maryvale family installed a modern solar and battery system, now generating 216% of their household energy needs.

The Story

This Maryvale household wanted more than just solar panels on the roof. They wanted genuine energy independence, with enough storage to power through the evening and overnight without relying on the grid.

Connect Energy designed a 14.25kW system with 40.3kWh of battery storage, matched to the home’s energy profile and roof orientation.

The Solution

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

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

Inverter
Sigenergy 12.0kW
SigenStor EC 12.0SP (Sigenergy)
10yr warranty

Battery
5 x Sigenergy 8kWh
40.3kWh total storage
10yr warranty

System Performance

The system generates 24,127 kWh per year, with the battery storing excess daytime generation for evening and overnight use. This covers 216% of the household’s annual energy consumption.

Monthly Generation (kWh/day)

71
Jan
71
Feb
70
Mar
66
Apr
53
May
57
Jun
56
Jul
59
Aug
71
Sep
70
Oct
71
Nov
77
Dec

Financial Impact

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

$110,109+
Estimated Lifetime Bill Savings (20 years)
$18,240+
Government Rebates Applied

216%
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 $18,240.

Environmental Impact

19 tonnes
CO₂ reduced per year

3,728
Trees planted equivalent

422
Long-haul flights avoided

Frequently Asked Questions

How much can a 14kW solar system with battery save in Maryvale, Brisbane?
A 14.25kW solar system with 40.3kWh battery in Maryvale generates approximately 24,127 kWh per year, covering 216% 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.