Vikram Solar — India

SOMERA 405W D HD

The Vikram Solar SOMERA 405W D HD is a 405W N-Type TOPCon solar panel with 19.6% efficiency. Backed by a 12-year warranty.

Standard Tier

405W

Wattage

19.6%

Efficiency

N-Type TOPCon

Cell Type

12 years

Warranty

Full Specifications

Brand
Vikram Solar
Model
SOMERA 405W D HD
Series
SOMERA
Wattage
405W
Module Efficiency
19.6%
Cell Type
N-Type TOPCon
Dimensions
66-80" x 39-41"
Weight
46 lbs
Warranty
12 years
Est. Price Per Watt
$1.93
Est. 7kW System Cost
$13,510
Est. 10kW System Cost
$19,300
Temperature Coefficient
-0.25%/°C
Bifacial
No
Origin
India
FEOC Status
check

Other Vikram Solar Panels

ModelWattageEfficiencyCell$/W
SOMERA 455W D455W21.1%PERC$2.38
SOMERA 450W C All-Black450W21%N-Type TOPCon$2.35
SOMERA 440W E Pro440W20.7%N-Type TOPCon$2.26
SOMERA 440W B BF440W20.7%PERC$2.26
SOMERA 435W D Plus435W20.5%PERC$2.20

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 Vikram Solar SOMERA 405W D HD cost?
The Vikram Solar SOMERA 405W D HD costs approximately $782 per panel ($$1.93/W). A typical 7kW system using this panel would cost around $13,510 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 Vikram Solar SOMERA 405W D HD a good solar panel?
The Vikram Solar SOMERA 405W D HD has 19.6% efficiency and a 12 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many Vikram Solar SOMERA 405W D HD 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.