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PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 30.72kWh LiFePO4
Real build cost
$23,689
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
$1.50
Cost / Wh
$0.77
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 May 7, 2026Methodology
Other Configurations
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 28.6kWh LiFePO4
$22,689$-1,000
Panels15840W86%
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 30.72kWh LiFePO4Viewing
$23,689
Panels15840W86%
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 30.72kWh LiFePO4
$24,689+$1,000
Panels15840W86%
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 30.72kWh LiFePO4, + IronRidge
$27,689+$4,000
Panels15840W86%
PRO 15.84kW — EG4 FlexBoss21+ GridBoss, 30.72kWh LiFePO4, + SkyRack HD
$31,989+$8,300
Panels15840W86%
Evidence
Cohort-normalizedCost verdict
—Advertised price ≈ real build cost
$23,689 advertised→$23,689 real
Completeness86%
Complete as sold — every standard role ships in the box.
Use-case fit
Best for:RV / vanCabinShedEmergencyHomesteadBoat
vs 25 cohort peersLower = cheaper
36th percentile for $1.50/W
48th percentile for $0.77/Wh
Deal status20 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
— AT AVERAGEAll-time low: $23,689Average: $23,689Current: $23,689High: $23,689
Where to buy
Where to Buy3 in stock
Retailer
Price
Stock
Shop Solar KitsBest
In stock
$23,689
View dealShop Solar Kits
In stock
$26,689
View dealShop Solar Kits
In stock
$31,889
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