We design and install battery storage systems for homes and businesses across Brisbane, the Gold Coast, Sunshine Coast and Northern NSW. Every system is tailored to your energy needs, helping you store more of your solar and use it when it delivers the greatest value.
A battery turns your solar from a daytime saving into a round-the-clock asset. But the real value isn't just storing power — it's using and exporting it at the right moment. That's where Custom Solar Power does things differently.
Battery sizing isn't guesswork. We size against your actual consumption and your inverter's limits so your system is built around how you really use energy.
Where it makes sense, we tend to recommend oversizing the battery a little. It builds in headroom for the future and gives you spare capacity that can be exported — and if you opt into Power Trader, that spare capacity can be sold during high-value windows to earn more. It also protects against natural battery degradation — batteries lose a small amount of capacity over time, typically holding around 70% of their original capacity after about 10 years. Sizing with that in mind means your system still performs years down the track, not just on day one.
Call us or get in touch through our contact form to talk batteries.
Batteries degrade gradually, typically retaining around 70% of their original capacity after about 10 years. We size with that in mind so your system still performs well down the track.
Often yes. We can assess your current system and advise whether adding storage makes sense, and how to do it compliantly.
Placement is governed by AS/NZS 5139 plus each manufacturer's own rules. We assess your site properly before committing to a spot.
Backup capability is available depending on your system configuration. We'll talk you through the options.
Not necessarily. The right size depends on your usage and goals. We often recommend spare capacity to improve ROI.
Every battery is properly sized and installed by our own team, with optional Power Trader optimisation.
Sometimes expanding makes strong financial sense, especially where it improves export earnings.
CSP’s Power Trader automatically optimises your battery by responding to live energy prices, solar production and household usage. It decides the best times to charge, discharge or export energy, helping your battery deliver more value than standard settings alone. Learn more about Power Trader.
We've been trading since 2017, backed by nearly 20 years of industry experience in the Energex and Ergon networks. Every battery is placed compliantly and installed by our own Gold Master Electricians. And for clients who want their battery to earn its keep, we offer Power Trader as an optional add-on to actively optimise it. Learn more about Power Trader.
