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15.0kW Solar + 27.1kWh Battery in East Brisbane, Brisbane

This East Brisbane home will save $77,984 with a massive 15.0kW solar and 27.1kWh battery setup.

15.0kW
System Size
27.1kWh
Battery Storage

The Story

This East Brisbane property is set to save over $77,984 over the life of the system. We installed a huge 15.0kW solar array and a 27.1kWh battery. The setup powers heavy summer aircon loads with ease.

The block had some tricky existing infrastructure. We even routed cabling through a fishpond to get it right. Our crew hid the conduit to keep the beautiful home looking neat. We claimed $5,550 in government rebates upfront to reduce costs.

The system will pay for itself in under 5 years. It generates 3,220 kWh annually to cover their power needs. They run the aircon all summer and let the big battery handle the night shifts.

“Brett, Lee and Archie (hope I got that spelling right) did an amazing job. Our job was not straight forward but they got on to it without fuss – under floors, in fish ponds and conduit for days! They were considerate, careful, professional and tidy. Everything was explained and nothing was too much trouble. It looks amazing and the App (for those who like them) is very intuitive. I couldn’t recommend they highly enough.”

Verified Google review

Installation Photos

The Solution

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

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

Battery
3 x Sigenergy 9kWh
27.1kWh total storage
10yr warranty

System Performance

The system generates 3,220 kWh per year, with the battery storing excess daytime generation for evening and overnight use.

Monthly Generation (kWh/day)

67
Jan
58
Feb
52
Mar
43
Apr
32
May
30
Jun
34
Jul
43
Aug
55
Sep
58
Oct
65
Nov
69
Dec

Financial Impact

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

$77,984+
Estimated Lifetime Bill Savings (20 years)
$5,550+
Government Rebates Applied

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 $5,550.

Environmental Impact

15 tonnes
CO₂ reduced per year

2,799
Trees planted equivalent

333
Long-haul flights avoided

Frequently Asked Questions

Will a large battery cover my summer aircon overnight?
A big battery easily runs multiple air conditioners through the night. It stores enough daytime solar to power a large home until morning.

How do government rebates work for solar in Brisbane?
We apply the federal rebates directly to your quote as an upfront discount. For this job we knocked over $5,550 off the total price before installation.

Can you hide the cables on an older Brisbane home?
Yes. We take the time to route cables through roof cavities and behind structures. We want your system to look as good as it performs.

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.