SolarWish
CompareResidentialCommercialUtility
Sunpower

Sunpower SPR-305-WHT-U (305W)

Residential · 305W
69
SCORE /100
30 specs
Score this as…
⭐ General / Balanced📐 Max Efficiency (Tight Roof)🛡️ Durability & Warranty🌡️ Hot-Climate Buyer⚡ High-Output / Commercial-Scale🪶 Easy-Install / Older Roof

Score Breakdown

Efficiency & Real-World Performance 74
Certifications 70
Temperature & Climate Resilience 64
Power Output 63
Build & Install 52
Warranty & Durability 46

DC Electrical Characteristics

STC Power Rating
305W
PTC Power Rating
280.6W
STC Power per unit of area
17.4W/ft (187.0W/m)
Peak Efficiency
0.187
Power Tolerances
-5%/+5%
Number of Cells
96
Imp
5.58A
Vmp
54.7V
Isc
5.96A
Voc
64.2V
NOCT
45°C
Temp. Coefficient of Power
-0.38%/K
Temp. Coefficient of Voltage
-0.177V/K
Series Fuse Rating
15A
Maximum System Voltage
600V

Mechanical Characteristics

Type
Monocrystalline Silicon
Output Terminal Type
Multicontact Connector Type 4
Frame Color
Clear
Backsheet Color
White
Length
61.4in (1,559mm)
Width
41.2in (1,046mm)
Depth
1.8in (46mm)
Weight
41lb (18.6kg)
Installation Method
Rack-Mounted

Warranty and Certifications

80% Power Output Warranty Period
25yrs
90% Power Output Warranty Period
12yrs
Workmanship Warranty Period
10yrs
UL Fire Classification
data not available
Compliances
UL 1703
CSI Listed
Yes