Mission Solar — US

MSE 420W C

The Mission Solar MSE 420W C is a 420W N-Type TOPCon solar panel with 20.5% efficiency. Made in US. Backed by a 30-year warranty.

Standard Tier🇺🇸 Domestic Content Bonus Eligible

420W

Wattage

20.5%

Efficiency

N-Type TOPCon

Cell Type

30 years

Warranty

Full Specifications

Brand
Mission Solar
Model
MSE 420W C
Series
MSE
Wattage
420W
Module Efficiency
20.5%
Cell Type
N-Type TOPCon
Dimensions
66-80" x 39-41"
Weight
48 lbs
Warranty
30 years
Est. Price Per Watt
$2.80
Est. 7kW System Cost
$19,600
Est. 10kW System Cost
$28,000
Temperature Coefficient
-0.25%/°C
Bifacial
No
Origin
US
FEOC Status
pass

Other Mission Solar Panels

ModelWattageEfficiencyCell$/W
MSE 440W D440W21.1%PERC$3.00
MSE 435W C All-Black435W20.9%N-Type TOPCon$2.93
MSE 430W B BF430W20.8%PERC$2.90
MSE 430W E Pro430W20.8%N-Type TOPCon$2.90
MSE 425W D Plus425W20.6%PERC$2.83

Similar Wattage Panels (Competitors)

PanelWattageEfficiency$/W
Maxeon 3 450W D Plus450W23.3%$4.61
SunPower Maxeon 445W D Plus445W23.1%$4.58
Maxeon 3 445W A Ultra445W23.1%$4.51
SunPower Maxeon 440W C440W22.9%$4.50

Frequently Asked Questions

How much does a 420W Mission Solar MSE 420W C cost?
The Mission Solar MSE 420W C costs approximately $1176 per panel ($$2.80/W). A typical 7kW system using this panel would cost around $19,600 before incentives.

⚠ The 30% federal solar tax credit has ended — Section 25D expired December 31, 2025, and the Section 48E construction-start deadline passed 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 Mission Solar MSE 420W C a good solar panel?
The Mission Solar MSE 420W C has 20.5% 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 Mission Solar MSE 420W C panels do I need?
For a typical 7kW residential system, you'd need approximately 17 panels. For a 10kW system, plan for about 24 panels. The exact number depends on your roof space, energy usage, and local sun hours.

Written & reviewed by

EnergyTools Research Team — Solar Energy Research Group

The EnergyTools Research Team compiles and verifies residential solar data from NREL, EPA, and state utility commissions. Methodology is reviewed quarterly.

  • Source data: NREL PVWatts V8 + Utility Rates V3 APIs
  • Source data: EPA FuelEconomy.gov vehicle efficiency data
  • Methodology reviewed quarterly

Methodology & data sources:NREL PVWatts, EIA, state utility commissions· Updated 2026.