
Solar batteries in Mount Cotton, with the rebate applied
Add a battery to new or existing solar in Mount Cotton, sized honestly to your evening usage, not the biggest box on the shelf.
Why Mount Cotton homes choose RS Energy for solar batteries
Feed-in tariffs have fallen to a few cents, while evening power still costs around 30 cents or more per kWh. A battery stores the solar you would otherwise sell cheaply and uses it after sunset, which is where the real savings now are for Mount Cotton households.
Queensland homes get the federal Cheaper Home Batteries discount, which takes roughly $250 per kWh off the first 14kWh at current certificate prices. Queensland has no separate state battery rebate open right now, and anyone telling you otherwise is out of date. Since 1 May 2026 the discount is tapered, so the first 14kWh gets the full rate and larger batteries get less per kWh. We will show you the sweet spot for your home.
The Redlands coast runs from Capalaba and Birkdale through Cleveland and Victoria Point to Redland Bay and the Southern Moreton Bay Islands, with plenty of larger blocks around Mount Cotton and Sheldon. Our solar batteries work in Mount Cotton also covers neighbouring Cornubia, Sheldon and Shailer Park, all within about 5km.
- Plenty of Mount Cotton properties are on acreage, which opens up ground-mounted arrays, sheds and larger systems. Rural feeders also see more outages, so battery backup is popular here.

What you get in Mount Cotton
Store your daytime solar, cut evening bills and keep the lights on in a blackout.
Right-sized storage
We look at your evening usage and size the battery so it fills on most days and empties overnight.

Blackout backup
Backup circuits for fridges, lights, internet and medical equipment when the grid goes down.
Works with existing solar
AC-coupled batteries added to most existing systems, or hybrid inverters for new installs.
Rebates applied
The federal battery discount comes off upfront, and we help with VPP sign-up where it pays.
Mount Cotton at a glance
- Council
- Redland City Council
- Electricity network
- Energex
- Postcode
- 4165
- Population
- 7,302 (2021 census)
- Area
- 42.5 square kilometres
- State electorate
- Springwood
- Federal division
- Bowman
- Typical solar output
- 27.7kWh a day from 6.6kW
- Export limit
- 5kW per phase, more on dynamic connections
- Rebates
- Federal STCs and federal battery discount
- Distance
- About 25km from Brisbane CBD in a straight line

Mount Cotton: a local snapshot
The mountain itself climbs to 233 metres in the middle of the locality, and the whole area is a koala conservation zone. Venman Bushland National Park protects bush along Tingalpa Creek in the west, with a wildlife corridor heading toward Eprapah Creek. Sirromet Winery, the 946 metre hillclimb circuit and St Paul's Lutheran Church are well-known spots.
Hilly blocks and koala habitat mean many homes are surrounded by mature gum trees, so a careful shade check of each roof plane helps decide panel layout, and acreage lots may have space for a ground mount.
Local background drawn from public sources including Wikipedia (CC BY-SA 4.0).
What a battery costs in 2026 in Mount Cotton
Typical installed prices after the federal Cheaper Home Batteries discount. The discount steps down again from January 2027, so installing this year locks in the current rate.
Battery rebates explained · Free midday power and batteries · Battery prices in 2026
- 10kWh battery
- $5,000 to $9,000
- 13.5kWh battery
- $7,600 to $10,500
- 15kWh battery
- $8,000 to $12,000
Recent work
See all projects
70kW Fronius system, Bellissimo Coffee, Coorparoo


Solar batteries in Mount Cotton: questions
Still unsure? Talk to us directly. You will speak with the people who do the work.
Call 0449 942 735Is a home battery worth it in Mount Cotton?
For most households that export a lot of solar and use power in the evening, yes. With the federal discount, many batteries now pay back in roughly 6 to 9 years, and you get blackout protection as a bonus. We will run the numbers on your actual bills before you commit.
How much is the battery rebate?
Queensland homes get the federal Cheaper Home Batteries discount, which takes roughly $250 per kWh off the first 14kWh at current certificate prices. Queensland has no separate state battery rebate open right now, and anyone telling you otherwise is out of date. The certificate rate drops every six months from January 2027, so the discount is worth less the longer you wait.
Can you add a battery to my existing solar?
Usually, yes. Most systems can take an AC-coupled battery without touching your panels. If your inverter is old or failing, a hybrid inverter replacement can be the better long-term option. We will check on site.
Will a battery keep my power on in a blackout?
Only if it is installed with backup. Most batteries we install include backup for essential circuits, and some can back up the whole home. We will explain what will and will not run before you choose.
What about free midday power plans?
Retailers now offer free power in the middle of the day on some plans in South East Queensland. A battery can soak up that free window as well as your own solar, then run your home through the expensive evening peak.
Do you service Mount Cotton 4165 and nearby suburbs?
Yes. Mount Cotton is part of our Redlands service area in the Redland City Council area, and we regularly work in Cornubia, Sheldon, Shailer Park, Priestdale. Call 0449 942 735 or request a quote online and we will reply within 24 hours.
More from RS Energy in Mount Cotton
All solar services in Mount CottonReady for a fixed-price quote in Mount Cotton?
Free on-site measure. We reply within 24 hours.
Prefer to talk? Call 0449 942 735

