SunPower® E-Series Commercial Solar Panels | E20-435-COM
HelixTM Roof Compatible Modules High Performance & Excellent Reliability
Factory-installed clips enable tool-free panel
installation, decreasing installation time and 20
minimizing business disruption. 1
More than 20% Efficiency
Captures more sunlight and generates more
power than conventional panels.
High Performance
Delivers excellent performance in real-world
conditions, such as high temperatures, clouds SPR-E20-435-COM
and low light.2
High Efficiency
Commercial Grade Generate more energy per square foot
Optimized to maximize returns and energy
More energy to power your system. E-Series residential systems convert more
production, the E-Series panel is a bankable sunlight to electricity by producing 31% more energy in the first year. This
solution for commercial solar applications. advantage increases over time, producing 45% more energy over the first 25
years to meet your needs.2
45%
25-Year Energy Production per Area
140%
More energy from
130% the same space
120%
31% more, year 1 SunPower
110% 64% more,
E-Series year 25
100%
90%
80% Conventional
70%
0 5 10 15 20 25
Years
Maxeon® Solar Cells: Fundamentally better
Engineered for performance, designed for reliability.
Best Reliability, Best Warranty
Engineered for Peace of Mind
A better warranty starts with a better product. Proven performance backs up
Designed to deliver consistent, trouble-free
our industry-best coverage, including out warranted 0.25% per year
energy over a very long lifetime.3
degradation rate.5
Designed for Reliability Power Warranty Product Warranty
100%
The SunPower Maxeon solar cell is the only cell 95%
SunPower
built on a solid metal foundation. Virtually 90% SunPower
15%
impervious to the corrosion and cracking that
85%
more, Traditional
80% year 25 Warranty
degrade conventional panels.
Traditional Warranty
75%
0 5 10 15 20 25 0 5 10 15 20 25
Years Years
#1 Rank in Fraunhofer durability test.4
More guaranteed power: 98% for first year, Combined Power and Product defect
−0.25%/yr. to year 25 25year coverage
Datasheet
SunPower®
® E-Series Commercial Solar Panels | E20-435-COM
X-Series Residential Solar Panels | X21-255
8
Electrical Data Tests And Certifications
SPR-E20-435-COM Standard Tests8 UL1703 (Type 2 Fire Rating), IEC 61215, IEC 61730
Nominal Power (Pnom)6 435 W Management
ISO 9001:2015, ISO 14001:2015
Power Tolerance +5/−3% System Certs
Avg. Panel Efficiency7 20.3% RoHS, OHSAS 18001:2007, lead free, REACH
EHS Compliance
Rated Voltage (Vmpp) 72.9 V SVHC-163, PV Cycle
Rated Current (Impp) 5.97 A Ammonia Test IEC 62716
Open-Circuit Voltage (Voc) 85.6 V Desert Test 10.1109/PVSC.2013.6744437
Short-Circuit Current (Isc) 6.43 A Salt Spray Test IEC 61701 (maximum severity)
Max. System Voltage 1500 V UL & 1000 V IEC PID Test 1000V: IEC62804, PVEL 600hr duration
Maximum Series Fuse 15 A Available Listings UL, TUV, MCS, CSA, FSEC
Power Temp Coef. −0.35% / o C
Voltage Temp Coef. −235.5 mV / o C
REFERENCES:
Current Temp Coef. 2.6 mA / o C
1 Helix-compatible modules may not be compatible with other racking systems.
2 SunPower 327W compared to a Conventional Panel on same sized arrays (260W, 16%
efficient, approx. 1.6 m2), 3% more energy per watt (based on 3pty module characterization and
PVSim), 0.75%/yr slower degradation (Campeau, Z. et al. "SunPower Module Degradation Rate,"
Operating Condition And Mechanical Data
SunPower white paper, 2013).
Temperature −40° F to +185° F (−40° C to +85° C) 3 “SunPower Module 40-Year Useful Life” SunPower white paper, May 2015. Useful life is 99 out
of 100 panels operating at more than 70% of rated power.
Impact Resistance 1 inch (25 mm) diameter hail at 52 mph (23 m/s)
4 X-Series same as E-Series, 5 of top 8 panel manufacturers tested in 2013 report, 3 additional
Appearance Class B panels in 2014. Ferrara, C., et al. "Fraunhofer PV Durability Initiative for Solar Modules: Part 2".
Photovoltaics International, 2014.
Solar Cells 128 Monocrystalline Maxeon Gen II
5 See us.sunpower.com/commercial-solar/products/panel-warranty for more details.
Tempered Glass High-transmission tempered anti-reflective 6 Standard Test Conditions (1000 W/m² irradiance, AM 1.5, 25° C). NREL calibration Standard:
SOMS current, LACCS FF and Voltage.
Junction Box IP-65, MC4 compatible
7 Based on average of measured power values during production.
Weight 56 lbs (25.4 kg) 8 Type 2 fire rating per UL1703:2013, Class C fire rating per UL1703:2002.
Wind: 50 psf, 2400 Pa front & back
Max. Load
Snow: 112 psf, 5400 Pa front
Frame Class 2 silver anodized; stacking pins
2073 mm [81.6 in]
2067 mm [81.4 in] FRAME PROFILE
1046 mm [41.2 in]
1072 mm [42.2 in]
46 mm
[1.8 in]
12.5 mm
[0.5 in]
(A)
4x (C) 22-32 mm
12.8 mm (C)
[12.5 in] [0.87-1.3 in]
(A) Cable Length: 1230 mm +/-10 mm 4 X 398 mm
[15.7 in] (B)
(B) Stacking Pins
(C) Optional Helix-compatible Clips
Please read the safety and installation guide.
Document # 521912 Rev B /LTR_US
©September 2017 SunPower Corporation. All rights reserved. SUNPOWER, the SUNPOWER logo,MAXEON
and Helix are trademarks or registered trademarks of SunPower Corporation. Specifications included in
this datasheet are subject to change without notice.
