What 11 Real Solar Installations in Singapore Actually Show

Sunnify has advised 11 documented landed-home solar installations across Singapore, spanning 12 real roofs, since one case study covers two neighbouring homes together. Each carries real photos, a real system size, and a real roof type, Sunnify's own proprietary evidence base rather than manufacturer specifications or industry averages. Here is what the actual pattern across them shows, and what it honestly does not.

• System sizes range from 12 to 26.4 kWp, with half the documented homes clustering right at 12kWp.
• Four distinct roof types are represented with real photos: flat concrete (ballasted), pitched barrel-tile, corrugated metal, and pitched metal.
• Savings figures are Sunnify's own standardised projections using consistent assumptions across every installation, not independently measured real-world output, worth stating plainly rather than implying otherwise.
• A documented four-home sequence on one East Coast street shows a real, observable neighbour effect: three additional households went solar after watching the first two.

What does the actual size range across these 12 homes show?

The spread runs from 12 to 26.4 kWp, more than double between the smallest and largest documented system, reflecting genuinely different roof areas and household consumption rather than a one-size-fits-all default. The combined capacity across all 12 homes is just over 172 kWp.

Why do so many of these installations land right around 12kWp?

Six of the twelve documented homes sit at exactly 12kWp. This is not a coincidence or a default Sunnify pushes; it reflects a real, common electrical constraint covered in single-phase versus three-phase supply: Singapore's single-phase electrical capacity commonly caps a system in the 10 to 13kWp range without an electrical upgrade, and most landed homes run single-phase by default. A genuine pattern across real installations, not an assumption stated in the abstract.

What does the real roof-type diversity actually show?

Four genuinely distinct mounting scenarios are represented with real photos, not illustrations: flat concrete roofs using ballasted aluminium frames with zero penetrations (Lim Ah Pin Road, Merryn Avenue), pitched barrel-tile roofs with rail-mounted panels (Chuan Drive, Joo Chiat), corrugated metal (Loyang Avenue), and pitched metal across multiple roof faces (Mount Sinai, Tai Keng Avenue, the East Coast homes). See roof waterproofing and solar installation for how each of these mounting approaches actually protects the roof beneath it.

Does the ballasted, zero-penetration option actually hold up as a real choice, not just a theoretical one?

Yes, demonstrated directly rather than only described. Both Lim Ah Pin Road and Merryn Avenue are real, commissioned, currently exporting systems using ballasted mounting with no roof penetrations at all, proof this is a genuinely viable option for a flat concrete roof, not just a specification sheet claim. See the ballast weight calculation guide for how this approach is actually engineered.

How fast do these installations actually go from start to generating?

Four of the twelve documented homes, Lim Ah Pin Road, Loyang Avenue, Mount Sinai, and Tai Keng Avenue, were explicitly commissioned and exporting within a single day on site, each on a roof requiring no structural remediation beforehand. This is real evidence that a fast, uneventful installation is a genuinely achievable normal outcome on a straightforward roof, not an unusually lucky exception, covered further in what actually causes installation delays.

What does the East Coast sequence actually demonstrate?

A real, documented neighbour effect: four homes on the same street went solar in sequence, not all at once. The first two systems, each roughly 12kWp of AIKO NEOSTAR bifacial panels, went in together; watching those two work is specifically what brought a third neighbour on board, then a fourth. See installing when your neighbour already has solar for what this kind of local precedent actually changes for a homeowner considering the same step.

What do the savings figures across these case studies actually represent?

Standardised projections, not independently measured real-world output, and this is worth stating precisely rather than leaving ambiguous. Every case study applies the same Q3 2026 EMA regulated tariff (S$0.3478/kWh), the same 25% self-consumption assumption, and the same SCT export credit (S$0.2581/kWh) to that home's actual installed kWp. The system sizes, roof types, and photos are real and specific to each home; the savings figures are Sunnify's consistent methodology applied to real inputs, not a claim that real-world performance was individually measured and happened to match.

Does this consistency across savings figures mean roof type does not actually affect performance?

No, and this is exactly the distinction worth being careful about. The near-identical savings-per-kWp figure across different roof types is a direct result of applying the same assumptions to every projection, not an empirical finding that a ballasted flat roof and a pitched metal roof perform identically in practice. See simulation versus real output for the real-world factors, orientation, shading, temperature, that do cause actual performance to vary between individual roofs.

What does this data honestly not show?

It is not a scientific survey of the Singapore market, and treating it as one would overstate what 12 homes can support. These are specifically Sunnify-advised installations carried out by partnered, BCA-licensed contractors, not a random sample of every landed home installation in Singapore, and the panel brand mix, five of the twelve use AIKO NEOSTAR bifacial panels specifically, reflects what these particular projects chose, not a universal recommendation. Real, honestly documented, and useful as evidence of what is actually achievable, without claiming more statistical weight than a sample of this size genuinely carries.

Is this data available anywhere beyond this article?

This data is also available as a downloadable dataset, CSV or JSON, one row per real installation with location, roof type, mounting detail, system size, and panel count. Same methodology caveat applies: 12 documented projects, not a market survey.

What's the actual next step?

See the full documented installation gallery for every project's real photos and specifications. Run the Sunnify solar estimate to see where your own roof would land against this real range.