Paradise Valley · Phoenix
Paradise Valley — The Flat Roof
A 12.6 kW array on a desert-modern flat roof, designed to power the house and disappear from the street.
The home
A low, flat-roofed contemporary tucked under Camelback, all clean parapets and glass — the kind of house where a badly placed panel reads like a scratch on a car. The owners wanted their power bill gone but would not accept a visible array, and Paradise Valley's design review is among the strictest in the state. The brief was, essentially, all of the sun and none of the evidence.
What we built
A flush, low-tilt array on the flat roof, set behind the parapet so it sits below the sightline from the street and the neighbors' windows. Thirty black-on-black panels on a ballasted, flashed mount — no penetrations through the membrane where we could avoid them — with all conduit run inside the roof structure. Microinverters give panel-level production and let the layout wrap the roof's mechanical equipment without losing a whole string to one shaded module.
Because nothing tilts up above the parapet, the array is effectively invisible from the ground. From Camelback's trails you'd have to know it was there. It cleared HOA design review on the first submittal.
Specifications
| System size | 12.6 kW |
|---|---|
| Panels | 30 × 420 W monocrystalline, black-on-black |
| Inverter | Microinverters, panel-level monitoring |
| Mounting | Ballasted low-tilt on flat roof, flashed, conduit internal |
| Est. production | ≈ 21,000 kWh / year — ~95% of use |
| Timeline | 9 weeks (extended HOA design review) |
| Cost band | $34,000–$40,000 (before tax credit) |
Two days on the roof, flush and clean, and you can't see a wire. It looks like the house came that way.
— J. Alvarez, Paradise Valley
A roof with rules of its own?