The WA Residential Battery Scheme is the best-value finance option for most Perth homeowners installing a solar battery. It offers a $1,300 rebate and a no-interest loan of up to $10,000 repaid through your Synergy bill. But not everyone qualifies, and the scheme’s $10,000 loan cap does not cover every system.
For Perth homeowners who do not qualify for the WA scheme, or who need finance beyond what the scheme provides, Positive Energy Solutions recommends the Parker Lane Green Loan — a competitive, flexible unsecured loan designed specifically for solar, battery, and other green home upgrades.
What Is the Parker Lane Green Loan?
Parker Lane is an Australian finance company specialising in green home upgrades. Their green loan is an unsecured personal loan — meaning no security or equity in your home is required — offered at rates designed specifically for energy-efficient and renewable energy projects.
Key features of the Parker Lane Green Loan:
- From 6.99% p.a. variable (comparison rate 8.24% p.a. based on $30,000 over 5 years)
- Borrow from $1,000 up to $100,000
- Repay over 1 to 15 years — choose the term that suits your budget
- No security or equity required — fully unsecured
- No early repayment penalty — pay it off faster at any time, at no cost
- Funds paid directly to your supplier — Parker Lane pays Positive Energy Solutions on your behalf once the system is installed to your satisfaction
- 4.9 out of 5 from 1,640+ genuine reviews on ProductReview.com.au
- Application available online 24/7 — approval typically within 48 hours
Rate current as of June 2026. Rates are variable and subject to change. Parker Lane is a trading name of Upside Downside Pty Ltd, Australian Credit Licence 482276.
Who Parker Lane Is Best Suited For
Positive Energy Solutions recommends Parker Lane to customers in these situations:
You do not qualify for the WA Residential Battery Scheme
The WA scheme is available to Synergy and Horizon Power customers who meet the eligibility criteria. If you are not a Synergy or Horizon Power customer, or do not meet other scheme requirements, Parker Lane provides a competitive alternative at a rate well below a standard personal loan.
Your system cost exceeds the WA scheme loan cap
The WA scheme no-interest loan is capped at $10,000. If your system — including solar panels, inverter, and battery — costs more than this, Parker Lane can finance the full amount, or top up what the WA scheme covers. Parker Lane lends up to $100,000, making it suitable for larger systems and multi-battery installations.
You are installing a Tesla Powerwall 3
The Tesla Powerwall 3 is eligible for the federal Cheaper Home Batteries Program (CHBP) but is not eligible for the WA Residential Battery Scheme or Synergy Battery Rewards. For customers choosing the Powerwall 3, Parker Lane provides a competitive finance path alongside the CHBP incentive.
You want flexible terms and no lock-in
Parker Lane’s loan terms run from 1 to 15 years with no early repayment penalty. If you want to pay the loan off faster when cash flow allows, you can — without any fee. This flexibility makes it well suited to homeowners who expect to pay down the loan ahead of schedule using the energy savings generated by the system.
WA Residential Battery Scheme vs Parker Lane: Side by Side
The WA scheme remains the best starting point for eligible Perth homeowners. The combination of $1,300 rebate, $1,300 Synergy Battery Rewards, and 0% interest is hard to beat. Parker Lane is the recommended alternative for those who do not qualify or need finance beyond the scheme’s cap.
WA scheme rebate of $1,300 applies to Synergy customers. Synergy Battery Rewards of $1,300 is separate and also available to eligible Synergy customers. Parker Lane rates current as of June 2026 and subject to change.
What Can the Parker Lane Green Loan Be Used For?
Parker Lane’s green loan covers a broad range of energy-efficient and renewable upgrades — not just solar and battery. For Positive Energy Solutions customers, the relevant uses are:
- Solar panels and inverter: Finance the full solar system including panels, hybrid inverter, racking, isolators, and installation.
- Battery storage system: Finance any battery brand — no approved list required. This is particularly relevant for Tesla Powerwall 3 installations.
- EV charger: If you are adding a home EV charger alongside your solar and battery system, Parker Lane can finance this as part of the same loan.
- Heat pump hot water: iStore heat pump hot water systems are eligible — relevant for homeowners adding a heat pump as part of an all-electric home transition.
How Parker Lane Pays Your Installer
Parker Lane pays your installer directly — not you. Once your solar and battery system has been installed and you are satisfied with the work, you request funding from Parker Lane and they arrange payment directly to Positive Energy Solutions. You do not handle the funds yourself.
This protects both parties and ensures the loan is used for its intended purpose. Positive Energy Solutions coordinates this process with you at the point of installation completion.
How to Apply for a Parker Lane Green Loan
You can apply directly with Parker Lane online at parkerlane.com.au. The process typically takes 15 minutes to complete online, and approval is usually confirmed within 48 hours. Getting a quote does not affect your credit score.
Positive Energy Solutions can provide you with the quote or invoice Parker Lane requires as part of your application. If you have questions about the process, speak to our team when you receive your system quote and we will walk you through your options.
Get a Quote from Positive Energy Solutions
Positive Energy Solutions installs solar and battery together on every system. When you receive a quote, we confirm which rebates and finance options apply to your situation — including WA scheme eligibility, CHBP, Synergy Battery Rewards, and whether Parker Lane is the right finance path for you.
Contact Positive Energy Solutions for a no-obligation consultation. We will model your expected savings, confirm your rebate eligibility, and give you a clear picture of your finance options before you make any decision.
Related guides
- Solar Battery Finance Perth 2026: WA Scheme, Plenti and Parker Lane Explained
- Adding a Battery to Your Existing Solar System in Perth: 2026 Costs, Rebates, and Inverter Compatibility Guide
- How Much Can You Save with Solar and Battery in Perth? 2026 Breakdown
- How to Maximise Your Solar and Battery Savings in Perth
Frequently Asked Questions
What is the Parker Lane Green Loan interest rate?
From 6.99% p.a. variable as of June 2026, with a comparison rate of 8.24% p.a. based on $30,000 over 5 years. Rates are variable and subject to change. Your actual rate will be confirmed when you apply. Getting a quote does not affect your credit score.
Do I need to own my home to apply for Parker Lane?
Generally yes — Parker Lane requires you to be the owner of the property, though some exceptions apply. The loan is available to Australian citizens and most permanent residents. If you are unsure about eligibility, contact Parker Lane directly or speak to Positive Energy Solutions and we can help clarify.
Can I use Parker Lane alongside the WA Battery Scheme?
The WA scheme provides a no-interest loan of up to $10,000. If your system costs more than this, you could use the WA scheme loan for the first $10,000 and a Parker Lane loan to cover the remainder — though this would need to be discussed with both parties. Speak to Positive Energy Solutions about your options when you receive your quote.
Is there a penalty for paying off the loan early?
No. Parker Lane has no early repayment penalty. You can make additional repayments at any time and close the loan whenever you like at no cost. This is a key advantage over some other finance products.
Why does Positive Energy Solutions recommend Parker Lane?
Positive Energy Solutions recommends Parker Lane to customers who do not qualify for the WA Residential Battery Scheme, or who need finance above the scheme’s $10,000 cap. At 6.99% p.a., Parker Lane’s green loan is a genuinely competitive unsecured rate — well below a standard personal loan — with flexible terms up to 15 years and no early repayment penalty. For Tesla Powerwall 3 installations specifically, Parker Lane is the recommended finance option alongside the CHBP incentive.
What is the difference between the WA scheme and Parker Lane?
The WA Residential Battery Scheme provides a $1,300 rebate plus a 0% no-interest loan of up to $10,000 repaid through your Synergy bill — the best-value option for eligible homeowners. Parker Lane is a market-rate green loan from 6.99% p.a. with a higher borrowing limit ($100,000), longer terms (up to 15 years), and no restriction on which battery brand you choose. Parker Lane is the recommended path when the WA scheme does not apply or does not cover the full system cost.
About the Author
Jason Wiktorowicz
Sales Manager, Positive Energy Solutions | Perth, WA
Jason has been at the centre of Western Australia’s energy transition for over a decade. As Orchestration Lead on Project Symphony — WA’s largest virtual power plant pilot — and Stream Lead on Project Encore, he worked directly with AEMO, Western Power and Energy Policy WA to shape how distributed energy resources connect and operate on the SWIS. That work included developing and rolling out CSIP-AUS, now mandatory for all new WA grid connections. He also led Emergency Solar Management (ESM), the first program of its kind in WA, VPP for Schools (VPP4S), which provided direct market benefits through Supplementary Reserve Capacity, and REBAR, the WA Residential Battery Rebate scheme.
His earlier career spanned Synergy, Infinite Energy and Curtin University’s Sustainability Policy Institute, where he co-authored peer-reviewed research on net-zero urban precincts, solar integration and peer-to-peer energy trading, published in the journal Urban Planning in 2018.
At Positive Energy Solutions, Jason leads sales with a focus on system design accuracy and long-term performance. Positive Energy Solutions installs solar and battery systems, EV chargers and heat pumps, and holds partner accreditations with Fronius, SigEnergy, iStore and SunPower. Connect with him on LinkedIn.
