WHAT SIZE BATTERY DO I NEED?
Explore options around your existing solar, household energy use and what matters to you.
Find my battery fitA better way to choose solar and battery
YOUR HOME BATTERY.
CHOOSE WITH CONFIDENCE.
Find the right size, explore potential savings and understand your blackout backup needs—with a Jousto energy advisor when you want a hand.
Not sure what fits? Start with Help Me Choose. Already have a quote or system in mind? Get an Instant Quote.
Free to exploreNo obligationHuman help available
Want to talk it through? Book a Q&A. 
Choose with confidence
THREE QUESTIONS. A MORE CONFIDENT CHOICE.
Understand what fits your home before deciding what to buy.
WHAT COULD I ACTUALLY SAVE?
Use your own bill figures to explore potential savings and check the assumptions.
DIY savings calculator inside Help Me Choose.
Explore my savings
WHAT STAYS ON IN A BLACKOUT?
Explore the appliances you want to keep running and how long you may need backup.
Check my backup needsEstimates depend on your inputs. Your installation partner confirms technical suitability and backup arrangements.
Start where you are
START WHERE YOU ARE.
You don’t need to become a battery expert before you begin.
The Jousto results experience
SEE WHAT YOUR OPTIONS COULD MEAN.
Explore the system, the potential savings and the next step—not just a price.
- Compare recommended system options.
- Explore savings inputs and assumptions using your own bill figures.
- Plan backup for the appliances you want to keep running.
- Save a choice and come back to it when you’re ready.
Battery catalogue optionsIllustrative catalogue view
SAJ
SAJ 5kW EK70 9kWh Battery Bundle
Catalogue product. Options shown for your home depend on the details you share.
Goodwe
Goodwe 5kW Single Phase ESA 16.64kWh Battery
Catalogue product. Options shown for your home depend on the details you share.
Sungrow
Sungrow 5kW Hybrid Inverter + 9.6kWh Battery (AC/DC Coupled, Smart-Ready)
Catalogue product. Options shown for your home depend on the details you share.
Illustrative example. Your options and estimates depend on your details.
One familiar page, a clear next step
YOUR OPTIONS. YOUR NEXT STEP. ONE FAMILIAR PLACE.
Come back to your Jousto page to explore your options, revisit your choice and follow the next steps. You can ask for human help before choosing.
Explore your options
Compare options for your home and understand potential savings.
Save your choice
Save the option you’re leaning towards. You can revisit it before proceeding.
Share your details for review
Share your address and photos so your installation partner can review the property and requirements.
Review the proposal
Your partner confirms the technical requirements, installed price and installation arrangements.
Installation and available support
Your installation partner handles installation. Ask Jousto which ongoing support is available for your system.
Your installation partner reviews your property and confirms the technical requirements and installed price. A site inspection may still be needed. Saving a choice does not place an order.
Real people when you want a hand
TOOLS TO EXPLORE. PEOPLE TO TALK TO.
Talk it through with Jousto
Talk through questions about battery size, savings, backup or your existing solar.
Aarno is Jousto’s virtual assistant.
Use the chat launcher for virtual chat. A Q&A booking is a separate conversation with an energy advisor.
Your local installation partner
Your local installation partner reviews the technical requirements, confirms the proposal and handles installation.
We’ll explain who is contacting you and what happens next.
Support after installation
GET MORE FROM YOUR SYSTEM.
Ask Jousto about monitoring, automation and optimisation options for your equipment.
- Understand how your system is performing.
- Explore settings and energy plans that suit your usage.
- Check which monitoring and optimisation services are available for your system.
Availability depends on your equipment and service package. Inclusions and costs are explained before you opt in.
Ask about ongoing supportStraight answers
Questions worth asking.
Is Jousto an installer?
Jousto helps you understand your options and connects you with installation partners. The dealer handles technical assessment and installation.
Can I add a battery to my existing solar?
That depends on your inverter, system and installation requirements. Start with your details; the dealer confirms compatibility.
Is my Instant Quote the final installation price?
It is indicative. The dealer reviews your property and requirements before confirming the design, scope and installed price.
Why do you need my address and photos?
They help the dealer assess your property, existing equipment and proposed battery location. We explain which photos are useful and how to take them safely.
Do I need to choose before speaking with someone?
No. An energy advisor can help you understand your options first.
Who will contact me?
If you request contact, Jousto or your assigned installation partner will contact you in line with your stated preference.
What happens after installation?
Your dealer handles installation and its installation support. Ask Jousto which monitoring and optimisation services are available for your equipment, and what is included.
A better next step
YOUR HOME BATTERY. CHOOSE WITH CONFIDENCE.
Explore your options, check your numbers and ask questions before taking the next step.