Solar Investment vs Fixed Deposit: Which Gives Better Returns in Malaysia?

Solar investment vs fixed deposit Malaysia is one of the most common questions Malaysian homeowners and businesses ask before going solar. This page breaks down solar investment vs fixed deposit Malaysia in plain terms, with guidance from PNB.

Solar Doesn’t Pay a “Return” — It Reduces an Expense

An FD pays you interest. ASB pays you a dividend. Solar pays you neither — what it does is lower a bill you’d otherwise keep paying every month, a concept sometimes called “avoided cost.” If your average TNB bill is RM450/month and a solar system cuts that to RM120/month, the RM330 you no longer pay each month is the actual value the system delivers.

As a purely illustrative example (not a guarantee): if an RM18,000 solar system saves a household RM350/month (RM4,200/year), that works out to a rough gross annual “return rate” of about 23% (RM4,200 ÷ RM18,000), before factoring in the payback period. This 23% figure is not a fixed or promised rate — it depends entirely on the real system cost and the household’s actual electricity usage. After the system pays for itself (typically within the first several years, varying by system size and starting bill), every year of savings after that is treated as “pure profit” for the remaining 20+ years of the panel’s working life.

What Actually Determines Solar’s Payback Period

There’s no single payback number that applies to every home. Three factors drive how quickly a system “pays for itself”:

• System cost — price per kWp varies by panel brand, inverter choice, and installation complexity.
• Usage pattern — solar delivers the best value for households consuming a lot of electricity during daylight, when panels actually generate. A home empty all day, drawing power mostly at night, sees a slower payback.
• Current TNB tariff — under the RP4 structure, the domestic base tariff rose 14.2% effective 1 July 2025, to roughly 44.43 sen/kWh (≤1,500 kWh/month) and 54.43 sen/kWh (>1,500 kWh/month), before monthly AFA/EEI adjustments. A higher tariff means every kWh your panels generate now offsets more cost than before July 2025.

Because these factors differ home to home, any payback figure you see in marketing (including the 23% example above) should be treated as illustrative only. Getting an accurate figure for your own home needs a proper estimate based on your real TNB bills and a site survey.

Side-by-Side Comparison

Liquidity: A Fixed Asset vs. Money You Can Access Anytime

This is one of the most overlooked differences. Money in ASB or an FD can be withdrawn (subject to each product’s own conditions) whenever you need it — an emergency, a better opportunity, an unexpected expense. A solar system is a physical asset permanently fixed to your roof; you can’t “sell back half a panel” if you suddenly need cash. If you expect to move house soon or need fast access to capital, this liquidity gap should factor into how much you commit upfront.

Risk: Why Rising Tariffs Arguably Make the Solar “Bet” Safer Over Time

FD risk is close to zero (bank-guaranteed, PIDM-protected). ASB risk is low-to-moderate since the dividend can change yearly with PNB’s investment performance. Solar carries a different kind of risk — not capital loss the way an equity investment can suffer, but underperformance (dirty panels, shading, faults) or an inaccurate initial savings estimate.

One factor that arguably works in solar’s favour: the trend of rising TNB tariffs (the 14.2% increase in July 2025 being the latest example). Each time tariffs rise, the value of every kWh your panels generate rises with it, so real savings tend to grow over time rather than shrink — the opposite of an FD, where today’s locked-in rate stays fixed even as living costs climb. That said, this is a historical trend, not a guarantee tariffs keep rising at the same pace.

Solar Isn’t a Replacement — It’s a Complement

It’s worth repeating: solar and ASB/FD aren’t “either-or.” Plenty of households use both, for different purposes:

• ASB/FD for liquid savings that stay accessible for short-to-medium-term goals
• Solar for cutting a fixed monthly expense long-term, especially when the TNB bill is consistently high

Many Arus EnerG customers actually keep their ASB/FD savings intact as an emergency fund and use financing — rather than paying the full amount in cash — to install solar, so their liquid savings stay untouched.

The Bottom Line: Which One Is Right for You?

The honest answer: it depends on your financial goals, not one right answer for everyone. If your priority is liquidity, capital security, and the flexibility to withdraw whenever needed, ASB or an FD remains a sound choice and shouldn’t be dismissed just because its headline rate is lower than solar’s potential savings. If you own your home outright, your TNB bill is consistently high (RM300+/month), and you don’t need that capital for a near-term emergency, solar typically offers a higher avoided-cost “return” than the current ASB dividend or FD rate — in exchange for an illiquid asset. For most households, using both in balance beats choosing one exclusively.

Frequently Asked Questions

1. Is solar a better deal than ASB?
It depends on your electricity usage pattern — if your TNB bill is high (RM300+/month), the avoided-cost “return” from solar savings is usually higher than ASB’s declared dividend for FY2025 (5.75%). But ASB is more liquid and doesn’t require a large upfront outlay.

2. Can I use ASB money to pay for solar?
ASB withdrawals have specific conditions — check with Permodalan Nasional Berhad (PNB) for current withdrawal rules at pnb.com.my.

3. What’s the main risk of investing in solar compared to an FD?
Solar is a physical asset that needs upkeep and isn’t liquid (you can’t cash it out quickly like an FD), but the risk of system failure is low with proper warranty coverage. An FD carries almost no capital risk since it’s bank-guaranteed.

4. Why is solar sometimes described as “higher return” than an FD?
Because standard 12-month FD rates from major banks currently sit around 1.8%–2.95% per annum, while bill savings from solar on a high-usage household can work out to a double-digit “return” based on system cost — but that’s an illustrative example built on specific assumptions, not a guaranteed figure for every home.

5. Is solar suitable for everyone the way an FD is?
Not necessarily — solar requires owning your own home (not renting) with a suitable roof structure, plus a larger upfront budget than opening an FD, which can start with a small amount.

6. Will these ASB and FD rates stay the same next year?
Not necessarily. PNB declares the ASB dividend annually, and it can rise or fall with investment performance (the FY2025 rate matched FY2024 at 5.75 sen/unit, but that’s no guarantee for the year ahead). FD rates also move with Bank Negara Malaysia’s Overnight Policy Rate (OPR). Past performance doesn’t guarantee future returns for any of these instruments.

Want to Estimate Solar “Returns” for Your Own Home?

Arus EnerG can help estimate your savings based on your actual TNB bill.

Contact Arus EnerG on WhatsApp for a savings estimate

Related articles: Solar Panel Price for Homes | Solar Panel Financing Options

Reference sources: PNB Press Release — ASB FY2025 Income Distribution (19 December 2025), RinggitPlus — 12-Month FD Rates, TNB RP4 tariff effective 1 July 2025.

Note: This article is for educational purposes only and is not financial advice. All dividend/interest rates quoted apply to the specific period stated and are subject to change. Please seek independent financial advice for investment decisions.