Solar Panel Technologies and Their Temperature Coefficients
| Solar Panel Technology | Temperature Coefficient | Description |
|---|---|---|
| P-Type Crystalline Silicon | -0.5% /°C | These cells are common in traditional solar panels but have a relatively high temperature coefficient, meaning their efficiency decreases more rapidly with rising temperatures. |
| Polycrystalline P-Type Cells | -0.39 to -0.43% /°C | Similar to monocrystalline P-Type, these cells offer moderate performance but are slightly less efficient in hot conditions compared to monocrystalline. |
| Monocrystalline P-Type Cells | -0.35 to -0.40% /°C | These cells provide a slightly better performance than polycrystalline at higher temperatures but still have a higher temperature coefficient than N-type technologies. |
| Monocrystalline N-Type TOPCon | -0.29 to -0.32% /°C | N-Type cells generally perform better at high temperatures, and TOPCon (Tunnel Oxide Passivated Contact) cells are designed to improve efficiency further. |
| Monocrystalline N-Type IBC (Interconnected Back Contact) Cells | -0.26 to -0.30% /°C | IBC cells offer excellent performance in hot conditions, similar to HJT cells but with a slightly higher temperature coefficient. |
| Monocrystalline N-Type HJT (Heterojunction Technology) Cells | -0.25 to -0.27% /°C | HJT cells are among the most efficient at high temperatures, offering the lowest temperature coefficient and best performance in hot conditions. |
Key Points for Comparison
- N-Type cells, especially HJT and IBC cells, have lower temperature coefficients than P-Type cells, meaning they maintain efficiency better in high temperatures.
- HJT cells offer the best performance in hot conditions due to their low temperature coefficient.
- Monocrystalline and Polycrystalline P-Type cells have higher temperature coefficients, resulting in more significant efficiency losses at higher temperatures.
In summary, while all solar panels are less efficient at higher temperatures, N-Type cells, particularly those using HJT technology, perform better under thermal stress compared to traditional P-Type cells.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/how-do-different-solar-panel-technologies-compare-in-terms-of-temperature-coefficients/
