Pricing defaults
Private cost inputs. New estimates use your latest settings; saved requests retain their original prices. Inverter defaults are rounded averages of sampled new-unit retail listings checked November 13, 2026, excluding tax, freight, accessories and optional EMP upgrades. These are retail references, not verified wholesale costs. Sources and calculations are in the pricing reference below.
Inverter pricing reference · November 13, 2026
Latest review: 12000XP updated to $2,100, rounded from $2,099.99 at Current Connected and The Solar Store (out-of-stock listings); standard Sol-Ark 15K updated to $5,750 from Current Connected. These supersede the earlier sampled averages below for those two models. Tax, freight and accessories excluded.
6000XP: Signature Solar and The Solar Store, $1,499.99 each → $1,500. 12000XP V2: Signature Solar and Sky Solar USA, $1,899.99 each; The Solar Store, $2,099.99 → $1,967 (some listings backordered). 18kPV: Signature Solar and The Solar Store, $3,999.99 each → $4,000. FlexBOSS21: Signature Solar and The Solar Store, $3,599.99 each → $3,600. Standard Sol-Ark 15K: Current Connected, $5,750; PES Supply, $5,512.19 → $5,631.
Signature Solar · The Solar Store · Sky Solar USA · Current Connected · PES Supply
Battery pricing reference · November 13, 2026
Rounded sampled retail averages, per new battery, before tax, freight, cables and accessories. EG4 314 Ah Indoor WallMount 16 kWh: Signature Solar $3,739.99; Sky Solar USA $3,399.99 (indexed listing) → $3,570. Discover HELIOS 52-48-16000 16.1 kWh: Solar Electric $3,550; US Solar Supplier $3,550; Torven Power $3,599 → $3,566. Availability and delivered prices require supplier confirmation.
EG4 · Signature Solar · EG4 · Sky Solar USA · HELIOS · Solar Electric · HELIOS · US Solar Supplier · HELIOS · Torven Power