Suniva β€” US

OPTimus 405W D Plus

The Suniva OPTimus 405W D Plus is a 405W PERC solar panel with 19.7% efficiency. Made in US. Backed by a 30-year warranty.

Standard TierπŸ‡ΊπŸ‡Έ Domestic Content Bonus Eligible

405W

Wattage

19.7%

Efficiency

PERC

Cell Type

30 years

Warranty

Full Specifications

Brand
Suniva
Model
OPTimus 405W D Plus
Series
OPTimus
Wattage
405W
Module Efficiency
19.7%
Cell Type
PERC
Dimensions
66-80" x 39-41"
Weight
46 lbs
Warranty
30 years
Est. Price Per Watt
$2.87
Est. 7kW System Cost
$20,090
Est. 10kW System Cost
$28,700
Temperature Coefficient
-0.35%/Β°C
Bifacial
No
Origin
US
FEOC Status
pass

Other Suniva Panels

ModelWattageEfficiencyCell$/W
OPTimus 420W D420W20.2%PERC$3.03
OPTimus 415W C All-Black415W20.1%PERC$3.00
OPTimus 410W E Pro410W19.9%PERC$2.93
OPTimus 410W B BF410W19.9%PERC$2.93
OPTimus 405W A Ultra405W19.7%PERC$2.87

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 Suniva OPTimus 405W D Plus cost?
The Suniva OPTimus 405W D Plus costs approximately $1162 per panel ($$2.87/W). A typical 7kW system using this panel would cost around $20,090 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 Suniva OPTimus 405W D Plus a good solar panel?
The Suniva OPTimus 405W D Plus has 19.7% efficiency and a 30 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations. It also qualifies for the domestic content bonus under the Inflation Reduction Act.
How many Suniva OPTimus 405W D Plus 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 β€” 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 commissionsβ€” updated 2026.