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An all-black solar array flush on a charcoal shingle roof at pre-dawn, marine layer thinning over a Southern California street

Tesla solar panels power, hidden in plain sight.

The all-black Tesla panel is built to disappear into the roofline: 420 W max power, 20.5%+ module efficiency, no visible rails or clamps. Installed across Orange County and Southern California by OC Solar's in-house crews.

A bar of morning sun travels across the all-black panel — the cell grid, the tempered glass, and the skirted edge in macro.

360 cells, 6 x 60 orientation, under 0.13 in (3.2 mm) thermally pre-stressed glass.

All-black panel, concealed cell connections, uniform minimalist aesthetic.

1805 x 1135 x 40 mm | 71.1 x 44.7 x 1.57 in, 22.3 kg | 49 lb.

A house with solar. That still looks like the house.

The Tesla Panel Mount sits the array flush and low with front and side skirts — from the ground you see a clean rectangle hugging the roof plane and a thin, even shadow line beneath it. No exposed hardware is the difference between a house with solar and a house that still looks like the house.

The front skirt of a flush all-black solar array meeting charcoal composition shingles — no rails, no clamps, no exposed hardware

No rails. No clamps. Nothing to hide.

Low-profile mount — no visible hardware†1

Exploded engineering film

How Tesla Solar Panels comes apart — and comes home.

Disassembled, inspected, reassembled, then installed on the same Southern California home used throughout the product film.

Assembled at Buffalo, New York, USA — and warrantied to deliver at least 86% of nominal power up to 25 years.†5

See it on your roof ↓

The cloud test: a cloud shadow rolls across the array and nothing about the house flinches.

18 Power Zones vs 6 in standard panel (3x legacy panels) — more independent substrings, so shade dents output instead of collapsing the panel.

Golden hour from the curb: for a moment it is simply the most beautiful house on the street — then one sun angle sweeps the glass and gives the secret away.

Designed to pair with Tesla Solar Inverter and Powerwall 3.

Built for the weather, the warranty, and the long run

First golden light raking the all-black array as the marine layer burns off the hero home

Built for the weather it lives in.

Hail, heat waves, salt-air mornings — the panel is tested well past anything a Southern California roof will see, and it keeps working through all of it.

Hail-tested — 35 mm at 61 mph90 psf test loadOperates −40°C to +85°C

Warrantied like it plans to stay.

The warranty runs a quarter century — product and power alike — with the year-by-year output floor in writing.

25-year product warranty25-year performance warrantyMax 0.45%/yr degradation

Installed by the crew that answers for it.

Designed, permitted, and installed by OC Solar's in-house crews — one accountable team from the first site visit to permission to operate.

Years serving SoCal
10+

Years serving SoCal

Installed capacity
30+ MW

Installed capacity

Projects & service calls
6,373

Projects & service calls

Google rating (400+)
4.9★

Google rating (400+)

The rest of the system.

Tesla Powerwall 3

Tesla Powerwall 3

The house that doesn't blink.

Tesla Solar Roof

Tesla Solar Roof

The roof, reimagined.

Watch the film

Watch the film

“Power, Hidden in Plain Sight” — a product film by OC Solar.

Tech specs

Tesla Solar Panels, by the numbers

Every figure below is read directly from Tesla's 420W solar panel datasheet — the same document our designers work from.

Max power
420 W (Pmax, STC)
Module efficiency
>= 20.5% (420 W class)
Power tolerance
420 W: +10/-0 W (positive-only)
Cells
360 cells, 6 x 60 orientation
Power Zones
18 Power Zones vs 6 in standard panel (3x legacy panels)
Front cover
0.13 in (3.2 mm) thermally pre-stressed glass
Frame
Black anodized aluminum alloy
Dimensions
1805 x 1135 x 40 mm | 71.1 x 44.7 x 1.57 in
Weight
22.3 kg | 49 lb
Mounting
Tesla Panel Mount: no exposed hardware, low profile, front and side skirts; no extra rails, no visible clamps
Junction box
IP68, 3 diodes
Connectors
Staubli MC4
Hail testing
Hail test: 35 mm at 27.2 m/s
Test load
Front and rear side test load 4309 Pa | 90 psf
Operating temperature
-40 C to +85 C
Temperature coefficient (Pmax)
-0.34%/C (Pmax)
Fire rating
UL 61730 Type 2
Certifications
Certified to IEC / UL 61730-1, IEC / UL 61730-2, IEC 61215
Product warranty
25 years
Performance warranty
25 years
Year-1 output
At least 98% of nominal power during first year
Degradation
Max 0.45% degradation per year after year 1
Year-25 output
At least 86% of nominal power up to 25 years
Assembly
Assembled at Buffalo, New York, USA

Source: Tesla Solar Panel 420W.pdf.

OC Solar — Solar, Battery & Tesla Solar RoofTesla Energy Partner Council

OC Solar — Tesla Energy Partner Council member

Solar Power World list positions use official 2026 table data; displayed overall ranks and filtered installer positions use different cuts. Ranking methodology.

The film

Power, Hidden in Plain Sight

Watch the film →

Good questions

Tesla Solar Panels FAQ

The current Tesla panel is rated 420 W (Pmax, STC) with module efficiency of at least 20.5% (420 W class), and a positive-only power tolerance (+10/-0 W (positive-only)) — meaning a panel can only test at or above its rating, never below.

Prefer to talk it through? Talk to a solar panel specialist

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Licensed, Bonded & Insured · CSLB #1023627

†1Tesla Panel Mount: no exposed hardware, low profile, front and side skirts; no extra rails, no visible clamps — Tesla Solar Panel 420W.pdf, p.1 Sleek Design / intro.

†2420 W (Pmax, STC) — Tesla Solar Panel 420W.pdf, p.2 Electrical Characteristics.

†3>= 20.5% (420 W class) — Tesla Solar Panel 420W.pdf, p.2 Electrical Characteristics.

†425 years — Tesla Solar Panel 420W.pdf, p.1 Limited Power Warranty.

†5Assembled at Buffalo, New York, USA — Tesla Solar Panel 420W.pdf, p.1 intro.

†6At least 86% of nominal power up to 25 years — Tesla Solar Panel 420W.pdf, p.1 Limited Power Warranty.

†718 Power Zones vs 6 in standard panel (3x legacy panels) — Tesla Solar Panel 420W.pdf, p.1 Power Zones.

†8More substrings to mitigate shade and deliver more energy — Tesla Solar Panel 420W.pdf, p.1 Power Zones.

†9Designed to pair with Tesla Solar Inverter and Powerwall 3 — Tesla Solar Panel 420W.pdf, p.1 Power Zones.

Final system design is confirmed for your specific home.