DELTA 3 Ultra – 3,072Wh / 3,600W + 2×200W Folding Panels
Real build cost
Complete kit — advertised price is the real price.
Solar
400W
Storage
3.1kWh
Inverter
None
Cost / W
$3.97
Cost / Wh
$0.52
System voltage
48V
Battery chemistry
LiFePO4
What's included
86% completeThis kit is missing 1 component that is not included in the advertised price:
↓ Panel-bundled configurations available below
Evidence
Cohort-normalizedComplete as sold — every standard role ships in the box.
17th percentile for $3.97/W
25th percentile for $0.52/Wh
Component breakdown
5 included · 0 missingPrice history
Price History
— AT AVERAGELast observed at retailer: Jun 21, 2026. Days between observations carry the most recent known price — not new data.
Where to buy
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