A registry listing is a starting point. CEC inclusion is not nationwide installation approval. Confirm the exact model and configuration with your utility and local authority.
How to use this dataEquipment overview
305 W, 60 cell monocrystalline module, white backsheet, black frame, 1000V max system Vdc
The figures below refer to STP305S-20/Wfm. Use the configuration table for other variants.
- Nameplate DC power
- 305 W DC
- Maximum-power voltage (DC)
- 32.8 V DC
- PTC power (DC)
- 280.2 W DC
- Technology
- Mono-c-Si
Specifications are reported in the CEC source; SolarApprovals has not independently tested this equipment. A missing value does not mean zero or a failed certification.
Exact configurations
CEC annotations in braces identify the listed configuration and are not part of the manufacturer’s model number. Variants share this canonical page.
| CEC model / configuration | Nameplate DC power | PTC (DC) | Observation | Compare |
|---|---|---|---|---|
| STP305S-20/WfmPV Module-Full row 21515 | 305 W DC | 280.2 W DC | Listed in CEC |
Source specifications and conditions
Additional source information for STP305S-20/Wfm. Qualifiers, reported control modes and required devices are retained as written. Power-control listings do not establish arbitrary battery/inverter pairings.
- NOCT (°C)
- 43.6
- Module family
- Monocrystalline
- Cells in series
- 60
- CEC listing date
- 2019-06-17
- Module area (m²)
- 1.62
- PTC rating (W DC)
- 280.2
- Safety certification
- UL 1703
- Parallel cell strings
- 1
- Building-integrated PV
- N
- Maximum-power current Imp (A)
- 9.3
- Short-circuit current Isc (A)
- 9.8
- Open-circuit voltage Voc (V DC)
- 39.8
- Maximum-power voltage Vmp (V DC)
- 32.8
- Pmax temperature coefficient (%/°C)
- -0.4428
Documented compatibility
No specific equipment pairing has been verified for this model.
Shared voltage, a hybrid designation, or the same manufacturer does not establish compatibility. Check the manufacturer’s installation documents for exact model combinations, firmware, and operating conditions.
Registry observation history
Dates show when SolarApprovals observed a status. The first observation is not the original CEC listing date. History begins with our first import.
- Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSTP305S-20/Wfm
Archived CEC source