Estimated reading time: 20 minutes
We can quote cost-per-kWp figures all day. We can model payback periods, project 25-year savings, and draw charts that show solar beating the grid.
But nothing lands like the truth from someone who’s already done it.
This article features real Singapore families who installed Sunollo solar systems on their landed homes. No hypotheticals. No projections. Just actual before-and-after electricity bills, actual kWh generated, actual dollars saved, and actual words from the homeowners themselves.
Every data point below comes directly from monitored system performance and verified SP bills. You can explore each family’s full story — with monthly generation data, CO₂ savings, and detailed financials — at love.sunollo.com.
The Numbers at a Glance: 12 Families, 12 Roofs, One Pattern
Before we dive into individual stories, here’s what the aggregate data shows:
Four of these families now have negative electricity bills — SP owes them money each month. The remaining eight have reduced their bills by 55–77%.
These aren’t outliers. They’re the pattern.
The Liow Family, Serangoon Gardens
The Liow family runs one of the largest residential solar systems in Singapore. With a detached home, heavy air-conditioning use, and an EV charger, their electricity bill was north of S$1,200 every month. Their 76-panel system now generates nearly 4,000 kWh in a single month — enough to slash their bill by over S$900.
“The online monitoring app makes it easy to track my home’s energy use against solar generation every day — giving me full clarity. Although there are fluctuations in energy production, overall I still save!” — The Liow Family
Key concern before installation: integrating solar smoothly with EV charging while still delivering strong household savings. Result: S$14,417 in annual savings and projected lifetime savings of over S$400,000.
Read the Liow family’s full story →
The Zero-Dollar Bills: Families Now Earning from Their Roofs
Four families in our portfolio have crossed a remarkable threshold: their solar systems produce more electricity than they consume. SP now credits them every month.
The Ng Family — Yio Chu Kang
The Ng family went from paying S$136/month to receiving S$143/month in credits — a swing of nearly S$280 every month. Their relatively modest consumption combined with a well-sized 11 kWp system means most of their production is exported and credited via NER.
“I am looking forward to exploring further opportunities of collaboration, especially the translucent KAPA panels, and further expansion of system size!” — The Ng Family
The Lim Family — Bedok
A couple in a terrace house. Modest consumption, excellent roof orientation. Their system generates more than double what they use, and the NER credits now exceed their original bill.
“Sunollo made the solar process smooth and hassle-free. I’m so impressed, I’m encouraging my neighbours and community to go solar too!” — The Lim Family, Bedok
The Nair Family — Bedok
The Nair family had a unique concern: their home has a 60-year-old roof. Sunollo’s team completed full waterproofing and structural preparation before installing a single panel.
“Sunollo made sure every detail was done right, even taking care of my 60-year-old roof before installing the panels. I couldn’t be happier.” — The Nair Family
The Ong Family — Tanah Merah
The Ong family’s system produces more than double their annual consumption. They went from a modest S$91 bill to S$100 in monthly credits.
“Sunollo’s team handled every detail with care. The installation was seamless, the monitoring app is effortless to use, and now I’m saving on energy every day.” — The Ong Family
Read all four zero-bill stories →
The High Savers: S$400+ Monthly Savings
The Khanna Family — Joo Chiat
The Khanna family was worried about unforeseen problems during installation on their large detached home. The reality: smooth installation, beautiful aesthetics, and S$570/month saved from day one.
“Love that everything works seamlessly and is completely digital. This is the energy revolution and Sunollo is poised for being the #1 energy provider for homes in Singapore.” — The Khanna Family
The Seet Family — West Coast
The Seet family had a specific requirement: the system needed to integrate seamlessly with their EV charger. Sunollo designed the system to prioritise self-consumption during charging windows.
“The team’s flexibility made the whole process very easy, integrating my EV to the system perfectly. Overall, very happy!” — The Seet Family
The Lim Family — Serangoon
“Switching to Sunollo was a no-brainer — the installation was smooth, and my monthly subscription is no more than what I used to pay for utilities. I’ve recommended Sunollo to friends because they truly deliver on both value and professionalism.” — The Lim Family, Serangoon
The Lobo Family — Ang Mo Kio
One of Sunollo’s earliest customers, the Lobo family has had their system running since November 2024 with zero issues.
“I was fortunate enough to be one of Sunollo’s first few customers, and have really appreciated the support and savings that they have provided from Day One.” — The Lobo Family
The Proof of Concept: Terrace Houses and Older Homes
A common concern we hear: “My terrace house doesn’t have enough roof space” or “My house is old — can it even support solar?” These families answer both questions.
The Fong Family — West Coast (Terrace, Older Property)
The Fong family had genuine concern about installing solar on an older property. Sunollo’s team assessed the structure, reinforced where necessary, and delivered a clean installation that’s been performing flawlessly.
“Sunollo made everything simple. I was worried at first, especially with an old property, but it turned out smoothly.” — The Fong Family
Even on a terrace with a modest 8.37 kWp system, the family saves S$226 every month and will recoup their full investment within 6 years.
The Singgih Family — Loyang (Semi-D, First-Timer)
“I honestly can’t understand why anyone would not install solar!” — The Singgih Family
The Loo Family — Eunos (Semi-D, Consistent Performer)
“The entire process exceeded my expectations with professional installers, clean work, and intuitive panel monitoring. Over the year thus far my energy savings are consistent.” — The Loo Family
Explore every family’s full story at love.sunollo.com →
The Complete Scorecard: All 12 Families Side by Side
Sorted by annual savings. Every single family is saving. The range: S$3,332 to S$14,417 per year. The average: S$5,277 per year. Payback across all 12: 2–6 years.
What These Families Have in Common
Across 12 different homes, locations, roof types, and family sizes, several patterns emerge:
1. Every family was nervous before installation. The most common concerns: unforeseen problems, whether solar would work on their specific roof, and whether savings projections would actually materialise. Every family reports those concerns were unfounded.
2. Actual savings consistently meet or exceed projections. Not one family reports underperformance relative to what Sunollo modelled. Several are ahead of projections.
3. The monitoring app transforms the experience. Almost every testimonial mentions real-time monitoring as a key benefit. Seeing production and savings in real time builds confidence and trust.
4. Older homes are not a barrier. The Fong family (old terrace) and Nair family (60-year-old roof) both had successful installations with full structural preparation by Sunollo’s team.
5. EV integration works. The Liow and Seet families both charge their EVs from solar, dramatically reducing their total transport + energy costs.
6. Referrals are organic. Multiple families mention actively recommending Sunollo to friends, neighbours, and family. The Lim family in Bedok is encouraging their entire community to go solar.
Locations Across Singapore
These 12 families span the island — from Loyang in the East to West Coast in the West, from Serangoon Gardens in the central North to Bedok in the Southeast:
Joo Chiat · Loyang · Eunos · West Coast · Serangoon Gardens · Ang Mo Kio · Bedok · Serangoon · Tanah Merah · Yio Chu Kang
Solar works everywhere in Singapore. There is no “better neighbourhood” for solar — irradiance is uniform across the island. What matters is roof orientation, shading, and system design.
Frequently Asked Questions
Q: Are these real families?
A: Yes. Every story on love.sunollo.com is a real Sunollo customer with verified system data, actual SP bills, and their own words. Nothing is fabricated or hypothetical.
Q: How are savings calculated?
A: Savings = (electricity bill before solar) – (electricity bill after solar). After-solar bills are based on actual SP invoices. Generation data comes from real-time monitoring systems.
Q: Can a terrace house really benefit from solar?
A: Yes. The Fong family (terrace, West Coast) saves S$3,332/year. The Lim family (terrace, Bedok) now has a negative bill. Terrace homes have less roof space but still accommodate 6–12 kWp systems that deliver strong returns.
Q: What if my house is old?
A: The Nair family installed on a 60-year-old roof. Sunollo’s team assessed the structure, completed waterproofing, and delivered a flawless installation. Older homes are not a barrier — they just require proper preparation.
Q: How do some families have negative bills?
A: When solar production exceeds consumption, excess electricity is exported to the grid and credited via the Net Energy Rebate (NER) at the wholesale price. If NER credits exceed grid imports, your bill goes negative — SP owes you money.
Q: Does solar work with EV charging?
A: Yes. The Liow and Seet families both charge EVs from their solar systems. Sunollo designs systems to integrate with EV chargers, prioritising solar self-consumption during charging windows.
Q: What is the average payback period?
A: Across these 12 families, the average payback is 3.7 years. The fastest is 2–3 years (Ng family, Yio Chu Kang). After payback, solar electricity is effectively free for the remaining 20+ years.
Q: Where can I read the full stories?
A: Every family’s complete story — with monthly generation charts, CO₂ data, detailed financials, and their full testimonial — is available at love.sunollo.com.
Your Home Could Be Next
These 12 families were once where you are now: curious, cautious, and wondering if solar would really work for their home.
Now they’re saving S$3,300–S$14,400 per year. Four of them have zero-dollar bills. All of them wish they’d started sooner.
Sunollo offers a free, no-obligation site assessment for every landed homeowner in Singapore. We’ll evaluate your roof, analyse your bills, and show you exactly what solar can do for your home — with the same transparency these 12 families experienced.
Get Your Free Solar Assessment →
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