The Story
Rising electricity costs and unreliable grid supply prompted this Mount Cotton family to invest in a complete solar and battery solution. Their goal was simple: generate their own power and store enough to cover the hours when the sun isn’t shining.
Connect Energy specified a 6.65kW array paired with 32.2kWh of Sigenergy battery storage, optimised for the home’s consumption pattern.
The Solution
Connect Energy installed a complete solar and battery solution for this Mount Cotton home, selecting premium equipment suited to the site’s generation profile.
Solar Panels
14 x LONGi 475W
LONGi Hi-MO X6 MAX 475W
25yr product / 25yr performance warranty
Inverter
Sigenergy 10.0kW
SigenStor EC 10.0SP (Sigenergy)
10yr warranty
Battery
4 x Sigenergy 8kWh
32.2kWh total storage
10yr warranty
System Performance
The system generates 10,039 kWh per year, with the battery storing excess daytime generation for evening and overnight use. This covers 69% of the household’s annual energy consumption.
Monthly Generation (kWh/day) Financial Impact
This system significantly reduces the household’s electricity costs, with savings that grow as energy prices rise.
$79,386+
Estimated Lifetime Bill Savings (20 years)
$12,358+
Government Rebates Applied
69%
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 $12,358.
Environmental Impact
8 tonnes
CO₂ reduced per year
1,544
Trees planted equivalent
178
Long-haul flights avoided
Frequently Asked Questions
How much can a 7kW solar system with battery save in Mount Cotton, Brisbane?
A 6.65kW solar system with 32.2kWh battery in Mount Cotton generates approximately 10,039 kWh per year, covering 69% 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.
