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Model monthly repayments for a battery system, and check whether the WA Government's interest-free Battery Loan covers your install.
WA Government program
An interest-free loan for eligible battery installs that stacks with the Synergy upfront rebate.
Loan amount
Up to $10,000
Interest rate
0% p.a.
Term
3 to 10 years
Income cap
$210,000
household, per year
Solar Battery Perth does not broker or sell finance.
If the WA Government loan doesn't cover your full install cost, or you aren't eligible, these are the common options Perth households use.
From your existing bank or credit union.
What to check
Compare the advertised rate and the comparison rate side by side. The comparison rate includes fees.Offered by some SAA-accredited retailers through a finance partner.
Covering the gap above $10,000.
Rebate$130/kWh, capped at $1,300Applied as a discount on the install, not as a separate payment to you.
Synergy customers on the SWIS network with a household income at or below $210,000 per year, installing a CSIP-AUS compliant battery from the Synergy Supported Solutions List and joining a VPP.
Full criteria are on the rebates page.
Yes. The $130/kWh upfront rebate (capped at $1,300 for Synergy customers, up to 10kWh) reduces the install cost.
The interest-free loan can then fund up to $10,000 of what remains.
The gap is covered by your own cash or a separate loan.
A typical 10kWh Perth install after federal STCs and the Synergy rebate sits around $5,500–$10,500 on our indicative price band. The WA loan covers most or all of it, depending on the system you choose.
Through the WA Government's administering body.
The Solar Battery Perth rebates page links to the official application and lists the documents you need.
Use the calculator above to model repayments. When you're ready to price a real system, compare quotes from SAA-accredited installers in Perth, or email us with a specific question.
See what monthly repayments on a home battery could look like
System cost
Includes battery, inverter, and installation$8k–$100k
17% of total priceup to 50%
Loan
60 monthly payments1–10 yrs
Typical rate for green energy loans3.99–12.99%
Your savings
Your estimate. It varies by usage, tariff and battery size.$0–$500
For a precise figure, use the savings calculator or the ROI calculator.
Estimated net cost after savings
The repayment is about $128 a month above your savings estimate. Based on your inputs. This is an estimate, not financial advice.
60 monthly payments over 5 years at 6.99% p.a.
Same amount on the WA interest-free loan
If you're eligible. Check eligibility