Principal Solar Institute
A community for development and installation professionals in the solar industry
The Principal Solar Institute Module Ratings
The Principal Solar Institute’s scientifically designed and certified combination of tests and performance standards provide an unbiased, comprehensive rating system – the PSI PV module rating. Seven essential characteristics related to initial and long-term PV module performance are combined to create the PSI Rating:
- Actual Tested Maximum Power vs. Advertised
- Temperature Coefficient at Maximum Power
- Power at Low Irradiance to Power at High Irradiance Ratio
- Normal Operating Cell Temperature (NOCT)
- Total Area Efficiency
- Negative Power Tolerance
- Annual Power Reduction
These ratings allow you to make comparisons when analyzing PV modules and help you select the optimal PV module.
Subscribe to our email list
Before using the PSI Ratings, you should subscribe to our email list to receive important updates from the Principal Solar Institute.
PSI Ratings – PV Solar Modules from BYD (Huizhou) Battery
Here are the PSI Ratings for modules from BYD (Huizhou) Battery, calculated based on initial performance test data. If you don’t see a solar module that you are considering, contact us and we will try to add it.
| Rank | Manufacturer | Model | Type | Power (W DC) |
PSI Rating | Percentile |
|---|---|---|---|---|---|---|
| 1 | BYD (Huizhou) Battery | BYD 305P6C-36 | Polycrystalline | 305 | 8.00* | 75 |
| 2 | BYD (Huizhou) Battery | BYD 255P6C-30 | Polycrystalline | 255 | 7.94* | 72 |
| 3 | BYD (Huizhou) Battery | BYD 300P6C-36 | Polycrystalline | 300 | 7.86* | 69 |
| 4 | BYD (Huizhou) Battery | BYD 250P6C-30 | Polycrystalline | 250 | 7.78* | 64 |
| 5 | BYD (Huizhou) Battery | BYD 295P6C-36 | Polycrystalline | 295 | 7.73* | 62 |
| 6 | BYD (Huizhou) Battery | BYD 300P6A-36 | Polycrystalline | 300 | 7.68* | 59 |
| 7 | BYD (Huizhou) Battery | BYD 250P6A-30 | Polycrystalline | 250 | 7.66* | 57 |
| 8 | BYD (Huizhou) Battery | BYD 245P6C-30 | Polycrystalline | 245 | 7.63* | 56 |
| 9 | BYD (Huizhou) Battery | BYD 290P6C-36 | Polycrystalline | 290 | 7.62* | 55 |
| 10 | BYD (Huizhou) Battery | BYD 295P6A-36 | Polycrystalline | 295 | 7.55* | 51 |
| 11 | BYD (Huizhou) Battery | BYD 245P6A-30 | Polycrystalline | 245 | 7.51* | 48 |
| 12 | BYD (Huizhou) Battery | BYD 285P6C-36 | Polycrystalline | 285 | 7.48* | 47 |
| 13 | BYD (Huizhou) Battery | BYD 240P6C-30 | Polycrystalline | 240 | 7.47* | 46 |
| 14 | BYD (Huizhou) Battery | BYD 240P6-30 | Polycrystalline | 240 | 7.44* | 44 |
| 15 | BYD (Huizhou) Battery | BYD 290P6A-36 | Polycrystalline | 290 | 7.43* | 43 |
| 16 | BYD (Huizhou) Battery | BYD 285P6-36 | Polycrystalline | 285 | 7.41* | 42 |
| 17 | BYD (Huizhou) Battery | BYD 240P6A-30 | Polycrystalline | 240 | 7.36* | 39 |
| 18 | BYD (Huizhou) Battery | BYD 280P6C-36 | Polycrystalline | 280 | 7.34* | 38 |
| 19 | BYD (Huizhou) Battery | BYD 235P6C-30 | Polycrystalline | 235 | 7.32* | 37 |
| 20 | BYD (Huizhou) Battery | BYD 235P6-30 | Polycrystalline | 235 | 7.29* | 35 |
| 21 | BYD (Huizhou) Battery | BYD 285P6A-36 | Polycrystalline | 285 | 7.29* | 35 |
| 22 | BYD (Huizhou) Battery | BYD 280P6-36 | Polycrystalline | 280 | 7.28* | 35 |
| 23 | BYD (Huizhou) Battery | BYD 235P6A-30 | Polycrystalline | 235 | 7.20* | 30 |
| 24 | BYD (Huizhou) Battery | BYD 280P6A-36 | Polycrystalline | 280 | 7.17* | 29 |
| 25 | BYD (Huizhou) Battery | BYD 230P6-30 | Polycrystalline | 230 | 7.14* | 27 |
| 26 | BYD (Huizhou) Battery | BYD 275P6-36 | Polycrystalline | 275 | 7.14* | 27 |
| 27 | BYD (Huizhou) Battery | BYD 230P6A-30 | Polycrystalline | 230 | 7.10* | 26 |
| 28 | BYD (Huizhou) Battery | BYD 140P6-18 | Polycrystalline | 140 | 7.07* | 24 |
| 29 | BYD (Huizhou) Battery | BYD 275P6A-36 | Polycrystalline | 275 | 7.03* | 22 |
| 30 | BYD (Huizhou) Battery | BYD 270P6-36 | Polycrystalline | 270 | 7.02* | 22 |
| 31 | BYD (Huizhou) Battery | BYD 225P6-30 | Polycrystalline | 225 | 6.98* | 20 |
| 32 | BYD (Huizhou) Battery | BYD 225P6A-30 | Polycrystalline | 225 | 6.94* | 19 |
| 33 | BYD (Huizhou) Battery | BYD 270P6A-36 | Polycrystalline | 270 | 6.91* | 17 |
| 34 | BYD (Huizhou) Battery | BYD 265P6-36 | Polycrystalline | 265 | 6.88* | 17 |
| 35 | BYD (Huizhou) Battery | BYD 135P6-18 | Polycrystalline | 135 | 6.83* | 15 |
| 36 | BYD (Huizhou) Battery | BYD 220P6-30 | Polycrystalline | 220 | 6.81* | 14 |
| 37 | BYD (Huizhou) Battery | BYD 220P6A-30 | Polycrystalline | 220 | 6.79* | 14 |
| 38 | BYD (Huizhou) Battery | BYD 265P6A-36 | Polycrystalline | 265 | 6.78* | 14 |
| 39 | BYD (Huizhou) Battery | BYD 260P6-36 | Polycrystalline | 260 | 6.76* | 13 |
| 40 | BYD (Huizhou) Battery | BYD 215P6-30 | Polycrystalline | 215 | 6.65* | 10 |
| 41 | BYD (Huizhou) Battery | BYD 260P6A-36 | Polycrystalline | 260 | 6.65* | 11 |
| 42 | BYD (Huizhou) Battery | BYD 255P6-36 | Polycrystalline | 255 | 6.63* | 10 |
| 43 | BYD (Huizhou) Battery | BYD 130P6-18 | Polycrystalline | 130 | 6.56* | 9 |
| 44 | BYD (Huizhou) Battery | BYD 210P6-30 | Polycrystalline | 210 | 6.50* | 7 |
| 45 | BYD (Huizhou) Battery | BYD 250P6-36 | Polycrystalline | 250 | 6.49* | 7 |
| 46 | BYD (Huizhou) Battery | BYD 245P6-36 | Polycrystalline | 245 | 6.36* | 6 |
| 47 | BYD (Huizhou) Battery | BYD 205P6-30 | Polycrystalline | 205 | 6.34* | 6 |
| 48 | BYD (Huizhou) Battery | BYD 125P6-18 | Polycrystalline | 125 | 6.31* | 5 |
| 49 | BYD (Huizhou) Battery | BYD 240P6-36 | Polycrystalline | 240 | 6.24* | 5 |
| 50 | BYD (Huizhou) Battery | BYD 200P6-30 | Polycrystalline | 200 | 6.19* | 4 |
| 51 | BYD (Huizhou) Battery | BYD 120P6-18 | Polycrystalline | 120 | 6.06* | 3 |
* Modules denoted with an “*” use estimated values for one or more characteristics. Manufacturers can contact us to provide the missing data for these PV modules.
NOTE: PSI Ratings are based on publicly available data, and are subject to change as additional data and proprietary analyses become available for long-term performance.
