TOPCon (Tunnel Oxide Passivated Contact) is a next-gen N-Type cell technology that offers higher efficiency, better temperature performance, and lower degradation over time—resulting in more units generated per panel across its lifespan.

Under optimal sunlight, a 510W panel can generate around 2.3–2.6 kWh per day. With bifacial gain and reflective surface installation, output can be even higher. Actual generation depends on location, tilt, shadow, and inverter efficiency.

Bifacial panels generate electricity from both the front and rear sides by capturing reflected sunlight. This can boost energy output by up to 15–25%, especially when installed over reflective surfaces like concrete or metallic roofs.

N-Type TOPCon panels like this one have lower light-induced degradation (LID), better thermal performance, and longer lifespan—making them more reliable and cost-effective over time compared to conventional P-Type panels.

You would need approximately 10 panels (510W × 10 = 5.10kW) to build a 5kW solar system. The exact number may vary depending on inverter specs and system losses.