SELECTvia Shop Solar KitsUpdated < 1hr ago
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 30.72kWh LiFePO4
Real build cost
$22,689
Complete kit — advertised price is the real price.
Best forRV / van life, weekend cabin, and shed / workshop
Solar
15840W
Storage
30.7kWh
Inverter
16000W
Cost / W
$1.43
Cost / Wh
$0.74
System voltage
48V
Battery chemistry
LiFePO4
What's included
86% completePanelsControllerBatteryInverterWiringMountingMonitor
Complete Kit — Advertised Price Is the Real Price
All required components for a working system are included. No additional purchases needed.
Verified Aug 9, 2026Methodology
Other Configurations
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 28.6kWh LiFePO4
$19,859$-2,830
Panels15840W86%
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 30.72kWh LiFePO4
$22,389$-300
Panels15840W86%
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 30.72kWh LiFePO4Viewing
$22,689
Panels15840W86%
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 30.72kWh LiFePO4, + IronRidge
$26,539+$3,850
Panels15840W86%
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 30.72kWh LiFePO4, + SkyRack HD
$30,889+$8,200
Panels15840W86%
Evidence
Cohort-normalizedCost verdict
—Advertised price ≈ real build cost
$22,689 advertised→$22,689 real
Completeness86%
Complete as sold — every standard role ships in the box.
Use-case fit
Best for:RV / vanCabinShedEmergencyHomesteadBoat
vs 25 cohort peersLower = cheaper
28th percentile for $1.43/W
52th percentile for $0.74/Wh
Deal status66 datapoints
At or near tracked lowInstall complexityModerate
48V wiring + breakersLicensed electrician
Alternatives in cohortSame system type, similar specs
Component breakdown
6 included · 0 missingStatus
Role
Component
Specs
Qty
Est. Cost
Price history
Price History
▼ 8% BELOW AVGAll-time low: $22,689Average: $24,659Current: $22,689High: $24,689
Last observed at retailer: Aug 9, 2026. Days between observations carry the most recent known price — not new data.
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