Trina Solar — China

Vertex S+ 405W D HC

The Trina Solar Vertex S+ 405W D HC is a 405W PERC solar panel with 19.6% efficiency. Backed by a 25-year warranty.

Standard TierFEOC: Restricted

405W

Wattage

19.6%

Efficiency

PERC

Cell Type

25 years

Warranty

Full Specifications

Brand
Trina Solar
Model
Vertex S+ 405W D HC
Series
Vertex S+
Wattage
405W
Module Efficiency
19.6%
Cell Type
PERC
Dimensions
66-80" x 39-41"
Weight
46 lbs
Warranty
25 years
Est. Price Per Watt
$1.96
Est. 7kW System Cost
$13,720
Est. 10kW System Cost
$19,600
Temperature Coefficient
-0.35%/°C
Bifacial
No
Origin
China
FEOC Status
fail

Other Trina Solar Panels

ModelWattageEfficiencyCell$/W
Vertex 490W D490W22.8%N-Type TOPCon$2.81
Honey 490W D490W22.8%N-Type TOPCon$2.81
Tallmax 490W D490W22.8%N-Type TOPCon$2.81
SolaX 490W D490W22.8%N-Type TOPCon$2.81
Vertex S+ 490W D490W22.8%N-Type TOPCon$2.81

Similar Wattage Panels (Competitors)

PanelWattageEfficiency$/W
SunPower Maxeon 435W A Ultra435W22.7%$4.42
SunPower Performance 435W A Ultra435W22.7%$4.42
SunPower X-Series 435W A Ultra435W22.7%$4.42
SunPower E-Series 435W A Ultra435W22.7%$4.42

Frequently Asked Questions

How much does a 405W Trina Solar Vertex S+ 405W D HC cost?
The Trina Solar Vertex S+ 405W D HC costs approximately $794 per panel ($$1.96/W). A typical 7kW system using this panel would cost around $13,720 before incentives.

⚠ The 30% Federal Solar Tax Credit (48E/ITC) expired July 4, 2026.

Selecting 30% ITC assumes you began construction before this deadline. Most new purchases no longer qualify.Learn about your options after the deadline →

Is the Trina Solar Vertex S+ 405W D HC a good solar panel?
The Trina Solar Vertex S+ 405W D HC has 19.6% efficiency and a 25 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many Trina Solar Vertex S+ 405W D HC panels do I need?
For a typical 7kW residential system, you'd need approximately 18 panels. For a 10kW system, plan for about 25 panels. The exact number depends on your roof space, energy usage, and local sun hours.

Written & reviewed by

Jeremy Wolfe — Senior Solar Energy Analyst

Jeremy Wolfe is a solar energy analyst specializing in residential photovoltaic economics, federal and state incentive policy, and return-on-investment modeling for homeowners. He leads EnergyTools' solar research program and methodology.

  • 10+ years analyzing residential solar economics and payback modeling
  • Lead researcher for EnergyTools' 50-state solar cost-per-watt database
  • Author of 100+ solar ROI, payback, and incentive analyses

Methodology & data sources:NREL PVWatts, EPA FuelEconomy.gov, state utility commissions— updated 2026.