Original price
$1,124.00
-Original price
$5,494.00
Original price
$1,124.00
Current price
$899.00
$899.00-$4,395.00
Current price
$899.00
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450W Each · 20.79% Efficiency · PERC Mono Half-Cells · 1500V DC · UL 61730 & CEC
SunGoldPower 450W Monocrystalline PERC Solar Panel (SG-450WM)
450W per panel at 20.79% module efficiency, sold in the quantity you actually need rather than a full pallet. 450W at a competitive cost per watt, in the 1909mm frame size that most residential racking is designed around.
PERC monocrystalline 182 × 91mm half-cells behind 3.2mm tempered glass, in an anodized aluminium frame rated for a 1500V DC system voltage. Ten years on workmanship with a 25-year linear performance warranty. Renewable Outdoors is an authorized SunGoldPower dealer — call us at (303) 876-7654 and we'll check string sizing against your inverter's MPPT window before you order.
12-Year Product Warranty
Lowest Price Guarantee
Authorized SunGoldPower Dealer
Free Shipping
0% APR Financing
Expert Support: (303) 876-7654
Why the SunGoldPower 450W Panel
450W at 20.79% Efficiency
20.79% module efficiency at 450W per panel.
PERC Half-Cell Design
Half-cut PERC cells reduce resistive losses and cope better with partial shading.
IP68 Junction Box
3.2mm tempered glass in an anodized aluminium frame with an IP68-sealed junction box.
UL 61730 and CEC Listed
Certified for permitted grid-tied installation at up to a 1500V system voltage.
25-Year Linear Warranty
Ten years on workmanship with a 25-year linear performance guarantee.
Standard 1909mm Frame
The frame size most residential racking systems are designed around, which keeps mounting straightforward.
What's Included
What You Get
SunGoldPower 450W solar panels (SG-450WM) in the quantity you select
Pre-attached 4mm², 300mm each leads with MC4 compatible connectors
Datasheet and warranty documentation
Mounting hardware, racking, cabling beyond the panel leads, combiners and fusing are separate purchases. A full pallet is 32 panels and works out cheaper per watt if you need that many — we list that separately. Call us at (303) 876-7654 and we'll price the whole array.
SunGoldPower 450W Solar Panel Specifications
Model
SG-450WM
Rated Power (Pmax at STC)
450W
Cell Type
PERC monocrystalline 182 × 91mm half-cells
Module Efficiency
20.79%
Open Circuit Voltage (Voc)
41.72V
Short Circuit Current (Isc)
13.82A
Maximum Power Voltage (Vmp)
34.2V
Maximum Power Current (Imp)
13.16A
Maximum System Voltage
1500V DC
Maximum Series Fuse Rating
20A
Temperature Coefficient of Pmax
−0.39%/°C
Temperature Coefficient of Voc
−0.34%/°C
Temperature Coefficient of Isc
0.06%/°C
Nominal Operating Cell Temperature
46 ± 2°C
Dimensions
75.16" × 44.65" × 1.38" (1909 × 1134 × 35mm)
Weight
54.0 lbs (24.5 kg)
Frame
Anodized aluminium alloy
Glass
3.2mm tempered
Junction Box
IP68
Cable
4mm², 300mm each
Connector
MC4 compatible
Certifications
UL 61730, CEC Listed, TUV, IEC, CE, CB
Panels per Pallet
32
Product Warranty
10 years workmanship
Performance Warranty
25-year linear product workmanship warranty
10 years workmanship
SunGoldPower's product warranty covers materials and workmanship.
Lowest Price Guarantee
Found it cheaper elsewhere? Call us at (303) 876-7654 before you buy.
Authorized SunGoldPower Dealer
Genuine SunGoldPower modules with full manufacturer support.
SunGoldPower 450W Monocrystalline PERC Solar Panel (SG-450WM): Frequently Asked Questions
How many 450W panels do I need?
Work backwards from your daily energy use and your inverter's limits. As a rough guide, one 450W panel produces somewhere around 1.8kWh on a good day in a sunny climate and considerably less in winter or under cloud. Your inverter's maximum PV input and MPPT voltage window then cap how many you can string together. Call us at (303) 876-7654 with your inverter model and your usage and we'll size it properly with you.
How do I work out how many panels go in a string?
Divide your inverter's maximum PV input voltage by the panel's open circuit voltage, then subtract one for cold-weather margin — Voc rises as temperature falls, and a string sized at the limit on a mild day can exceed the inverter's ceiling on a freezing morning. These panels are 41.72V Voc with a −0.34%/°C temperature coefficient. We do this calculation for customers all the time, so call us rather than guessing.
Will the panels actually produce their rated wattage?
Rarely, and that's normal for every panel from every manufacturer. Rated power is measured at Standard Test Conditions — 1000W/m² irradiance at a 25°C cell temperature — which is brighter and cooler than a real roof on a summer afternoon. Expect 75 to 85 percent of nameplate in good conditions once the panels warm up. Size your array on that basis rather than on nameplate and you won't be disappointed.
What certifications do these carry?
UL 61730, CEC Listed, TUV, IEC, CE, CB. The one that usually matters for a permitted grid-tied installation in the US is the UL listing and CEC listing, because inspectors and utilities ask for them. If your jurisdiction has specific requirements, tell us and we'll confirm before you order.
What does the warranty actually cover?
Two separate things. The product warranty — 10 years workmanship — covers defects in materials and workmanship. The performance warranty — 25-year linear product workmanship warranty — guarantees the panel still produces a stated percentage of its original output at given years. Performance warranties are the more meaningful of the two over a panel's life, since panels rarely fail outright but all of them degrade.
Can I mix these with panels I already own?
On the same string, no — you should not mix panels of different wattage or electrical characteristics in series, because the string performs to the weakest module and you lose more than you'd expect. On separate MPPT inputs, or as a separate string on the same inverter, mixing is usually fine. Call us at (303) 876-7654 and describe what you have and we'll tell you what works.
What mounting hardware do I need?
That depends on whether you're going on a roof, a ground mount or a pole. These panels are 75.16" × 44.65" × 1.38" (1909 × 1134 × 35mm) and 54.0 lbs (24.5 kg) each, which is what your racking has to be rated for. We stock SunGoldPower's modular ground mount brackets for two panels, and we can advise on roof racking. Wind and snow loading matter a great deal here — it's worth a conversation rather than a guess.
Do you offer financing or price matching?
Yes. We offer 0% APR financing options through Affirm at checkout, and our Lowest Price Guarantee applies — if you find these panels cheaper at another authorized dealer, call us at (303) 876-7654 before you order and we'll take care of it.
