Types of Solar Panels
Not all solar panels are built the same. Here’s an honest breakdown of every panel technology we install, so you know exactly what’s going on your roof.
These cards aren’t all the same kind of choice, either — some describe the silicon wafer, some the cell technology built on top of it, and one describes how the module itself is assembled. The label on each card tells you which.
Monocrystalline
The premium standard
Cut from a single continuous silicon crystal, giving cells their signature uniform black or deep-blue finish and rounded corners — the most space-efficient panel on the market.
- Highest efficiency per sq. ft.
- Best in high heat & low light
- 25–30 year warranties common
Polycrystalline
The budget classic
Made by melting multiple silicon fragments together, giving panels their distinctive blue, speckled appearance. A proven, lower-cost technology that’s gradually being phased out as mono prices fall.
- Lower cost per panel
- Simple, mature manufacturing
- 20–25 year typical lifespan
PERC
Today’s industry standard
Passivated Emitter and Rear Cell technology adds a reflective rear layer that bounces unused light back into the cell for a second absorption pass — a meaningful efficiency boost over standard cells.
- Built on proven mono cells
- Better low-light performance
- Default in most panels sold today
Bifacial
Power from both sides
Frameless, dual-glass panels that generate power from direct sunlight on the front and reflected ground light on the rear — extra energy without extra roof space.
- Captures reflected/ambient light
- Durable glass-glass build
- 30+ year lifespan
Thin-Film
Light & flexible
A photovoltaic layer deposited directly onto glass, metal or plastic instead of rigid silicon wafers — lightweight, low-profile, and can even be curved.
- Performs well in heat & diffuse light
- Lightweight, low profile
- Fast, low-cost manufacturing
N-Type TOPCon / HJT
The next generation
The latest N-type cell architectures — TOPCon and Heterojunction (HJT) — beat older P-type PERC cells on efficiency, degradation and heat tolerance.
- Lowest degradation over time
- Best temperature coefficient
- Ideal for hot Indian summers
Not sure which panel technology is right for your roof?