WindyNationvia AmazonUpdated 1hr ago

WindyNation 400W Complete Off-Grid Kit

Solar

400W

Storage

1.2kWh

Inverter

1500W

Cost/Wh

$1.05

Kit Completeness71%
PanelsControllerBatteryInverterWiringMountingMonitor
Use Case Suitability
RV & VangoodCabinpoorShedexcellentEmergencypoorHomesteadpoorBoatexcellent

Advertised Price

$1,149

Real Build Cost Breakdown$1,259
Kit price $1,149Missing ~$110
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Completion Gap Receipt
Advertised price$1,149
Required missing parts
+ Mounting~$80
+ Monitoring~$30
Hidden cost to finish+$110
Real build cost$1,259
+$110 hidden cost · 1.1x the advertised price

Real build cost = advertised kit + required missing parts only. Optional accessories and tools are not included in this total.

offgridempire.comPrice checked Mar 23, 2026
Methodology

Component Breakdown

5 included / 2 missing
Solar Panels

WindyNation 100W Poly

Included

4×

WindyNation 100W Poly — 4x 100W = 400W total

Charge Controller

WindyNation P30L PWM

Included

1×

PWM — less efficient

Battery

WindyNation 100Ah AGM

Included

2×

AGM — 50% DoD, shorter cycle life

Inverter

VertaMax 1500W

Included

1×

Modified sine — not safe for sensitive electronics

Wiring

MC4 + battery cables

Included

1×

MC4 + battery cables — Included

Mounting

Not included

~$80

1×

Monitoring

Not included

~$30

1×

Total to complete~$110

Price History

AT AVERAGE
Price history for WindyNation 400W Complete Off-Grid Kit. Current price $1,149.00, above the average of $1,131.06. All-time low $993.69. 180 data points tracked.
All-time low: $994Average: $1,131Current: $1,149High: $1,246180 data points

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