Financing solar panels lets you install a system now and pay it off over time, rather than waiting years to save the full purchase amount.
Many Western Australian households want solar but hesitate at the upfront cost. A quality system with battery storage can run between $8,000 and $20,000 depending on size and technology. Equipment finance spreads that cost across monthly payments while you start benefiting from reduced electricity bills immediately. The question is whether the savings outweigh the interest cost, and whether the structure suits your situation.
Immediate Electricity Savings Versus Interest Costs
You start saving on electricity bills from the day your solar system switches on, even while making loan repayments. The benefit of financing is that your ongoing power savings can offset or exceed your monthly payment, particularly in Western Australia where sunshine is plentiful and electricity prices continue climbing. Interest adds to your total cost, but delaying installation means paying full retail electricity rates for years while prices increase.
Consider a household in Mandurah installing a 6.6kW system with a small battery for around $12,000. With finance over five years, monthly repayments might sit around $230 to $250 depending on the rate secured. If their quarterly electricity bill drops from $600 to $200, they're saving roughly $400 per quarter or $133 per month. The loan payment exceeds the immediate saving, but once the loan concludes, the full saving continues for the remaining life of the system, typically 15 to 20 years.
Tax Deductibility and Personal Use Limitations
Solar panels installed on your primary residence are not tax deductible because they're considered a personal expense, not a business asset. This differs from commercial or agricultural solar installations where the equipment may qualify as plant and equipment with deductions available. Personal borrowers in Western Australia financing residential solar won't receive tax offsets, so the financial case rests entirely on electricity savings and any government rebates or incentives available at installation.
If you operate a business from home or have an investment property, the calculation changes. Solar on a rental property or farm can be structured as plant and machinery finance, potentially offering depreciation benefits. The same equipment on different property types attracts different tax treatment, so confirm your situation before assuming any deduction applies.
Fixed Monthly Repayments and Cashflow Certainty
Most solar equipment finance is structured with fixed monthly repayments over a set term, typically three to seven years. You know exactly what you'll pay each month, which makes budgeting straightforward. Your electricity bill becomes more predictable too, since you're generating a significant portion of your own power. This combination of fixed loan repayments and reduced variable electricity costs gives households more control over their energy expenses.
Chattel mortgage and hire purchase structures are common for solar finance. Both involve fixed repayments, but ownership timing differs. A chattel mortgage means you own the equipment from day one, using it as security for the loan. Hire purchase means the lender owns the system until your final payment, at which point ownership transfers. For residential solar, chattel mortgage is more typical since you're installing the system permanently on your property.
Battery Storage and Loan Amount Considerations
Adding battery storage increases your upfront cost but also increases your independence from the grid and maximises the value of the energy you generate. Without a battery, excess solar power generated during the day is exported to the grid at a feed-in tariff, often between 2 and 10 cents per kilowatt-hour. That same electricity costs you 25 to 35 cents per kilowatt-hour to buy back at night. A battery stores your daytime generation for evening use, capturing the full retail value of every kilowatt-hour you produce.
Financing the battery alongside the panels means a higher loan amount and larger monthly repayments, but the energy savings are also higher. Many Western Australian households find the increased loan repayment is still covered by the increased electricity savings, particularly if they use air conditioning heavily in summer evenings. Battery technology is improving quickly, so systems financed now will last well beyond the loan term.
The Downside: Long-Term Commitment on Evolving Technology
Solar technology improves continuously. Panels become more efficient, batteries hold more energy, and prices gradually decline. When you finance a system, you're committing to repayments for several years on equipment that will be superseded by newer models. If you lock in a five-year loan and panel efficiency jumps significantly in year two, you're still paying for the older system.
This doesn't mean financing is the wrong choice, but it does mean you're trading the flexibility to wait for better technology against the immediate benefit of lower electricity bills. For most households, the cumulative savings over five years outweigh the risk of missing out on marginal technology improvements. Panels installed today will still generate power for two decades, even if newer panels are slightly better.
Ownership, Maintenance, and Warranty Coverage
When you finance solar panels with a chattel mortgage, you own the system from installation and are responsible for maintenance and repairs. Quality systems require minimal maintenance, mostly limited to occasional cleaning and monitoring performance. Panels typically carry a 25-year performance warranty, while inverters are covered for 5 to 10 years. Battery warranties vary but commonly range from 10 years or a certain number of charge cycles.
Your finance agreement doesn't include maintenance, so factor in potential costs like inverter replacement midway through the system's life. Most installers offer service packages, and some lenders partner with suppliers who include extended warranties or maintenance plans. Confirm what's covered before signing, particularly for batteries, which are the component most likely to need replacement within the first decade.
Selling Your Property Before the Loan Ends
If you sell your home before finishing loan repayments, you'll need to settle the remaining balance, either from sale proceeds or by refinancing the debt separately. Solar panels add value to a property, but whether that value covers your remaining loan balance depends on the system age, condition, and how much you still owe. A well-maintained system with several years of warranty remaining is an attractive feature for buyers, particularly in Western Australia where solar generation is strong year-round.
Some sellers pay out the loan and include the solar system as part of the property sale. Others negotiate with buyers to transfer the finance agreement, though this requires lender approval and is less common. The key is ensuring your loan term aligns with how long you plan to stay in the property. If you're likely to move within two or three years, a shorter loan term or paying cash may make more sense than a seven-year finance arrangement.
Accessing Finance Options for Solar Equipment
Solar equipment finance is available through banks, specialist lenders, and finance brokers who access equipment finance options from banks and lenders across Australia. Rates and terms vary significantly depending on the lender, loan amount, and your financial position. Some solar installers have partnerships with finance providers and offer in-house arrangements, but comparing external options often reveals more competitive rates.
BE Approved works with lenders across the country to structure solar finance that suits your cashflow and energy goals. We'll compare rates, terms, and structures to find an arrangement that balances monthly affordability with total interest cost. If you're also considering other upgrades like vehicle finance or additional equipment, we can sometimes package these together for better overall terms.
Solar panels are one of the few home improvements that generate measurable ongoing savings, making them particularly well-suited to finance. The electricity you don't buy pays for the system over time. If you're ready to install solar without tying up your savings, call one of our team or book an appointment at a time that works for you.
Frequently Asked Questions
Can I claim tax deductions on solar panels financed for my home?
Solar panels installed on your primary residence are not tax deductible because they're considered a personal expense. If the system is installed on an investment property or used for business purposes, different tax treatment may apply.
What happens to my solar finance if I sell my house?
You'll need to settle the remaining loan balance when you sell, either from the sale proceeds or by refinancing separately. Solar systems can add value to your property, but the added value may not always cover the outstanding loan amount.
Should I finance the battery at the same time as the solar panels?
Adding battery storage increases your loan amount and monthly repayments, but it also increases your electricity savings by storing daytime generation for evening use. Many households find the increased savings offset the higher repayments.
How do fixed repayments work for solar equipment finance?
Most solar finance uses fixed monthly repayments over a set term, typically three to seven years. You know exactly what you'll pay each month, which makes budgeting straightforward alongside your reduced electricity bills.
Is it better to wait for cheaper solar technology or finance now?
While technology improves over time, delaying installation means paying full retail electricity rates for years while prices increase. For most households, the cumulative savings over the loan term outweigh the risk of missing marginal technology improvements.
