Solar4America β€” US

S4A Pro 380-A Black

The Solar4America S4A Pro 380-A Black is a 380W N-Type TOPCon solar panel with 19.3% efficiency. Made in US. Backed by a 25-year warranty.

Standard TierπŸ‡ΊπŸ‡Έ Domestic Content Bonus Eligible

380W

Wattage

19.3%

Efficiency

N-Type TOPCon

Cell Type

25 years

Warranty

Full Specifications

Brand
Solar4America
Model
S4A Pro 380-A Black
Series
S4A Pro
Wattage
380W
Module Efficiency
19.3%
Cell Type
N-Type TOPCon
Dimensions
65-67" x 39-40"
Weight
43 lbs
Warranty
25 years
Est. Price Per Watt
$2.38
Est. 7kW System Cost
$16,660
Est. 10kW System Cost
$23,800
Temperature Coefficient
-0.25%/Β°C
Bifacial
No
Origin
US
FEOC Status
pass

Other Solar4America Panels

ModelWattageEfficiencyCell$/W
S4A 450W D450W21.7%PERC$2.97
S4A Pro 450W D450W21.7%PERC$2.97
S4A Max 450W D450W21.7%PERC$2.97
S4A 445W C All-Black445W21.5%N-Type TOPCon$2.92
S4A Pro 445W C All-Black445W21.5%N-Type TOPCon$2.92

Similar Wattage Panels (Competitors)

PanelWattageEfficiency$/W
SunPower Maxeon 410W A All-Black410W21.9%$4.08
SunPower Maxeon 410W B410W21.9%$4.08
SunPower Maxeon 410W D HD410W21.9%$4.08
SunPower Performance 410W A All-Black410W21.9%$4.08

Frequently Asked Questions

How much does a 380W Solar4America S4A Pro 380-A Black cost?
The Solar4America S4A Pro 380-A Black costs approximately $904 per panel ($$2.38/W). A typical 7kW system using this panel would cost around $16,660 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 Solar4America S4A Pro 380-A Black a good solar panel?
The Solar4America S4A Pro 380-A Black has 19.3% efficiency and a 25 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 Solar4America S4A Pro 380-A Black panels do I need?
For a typical 7kW residential system, you'd need approximately 19 panels. For a 10kW system, plan for about 27 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.