Solarman • DIY Kits

Fortress 12K + eVault Max 18.5 — DIY Kit

$19,500 — out the door (shipping included)
Inverter: Fortress Envy 12K (split‑phase) Battery: eVault Max 18.5 kWh (LFP) PV: 21× Bluesun 460W (≈9.66 kW) MidNite Quad (3× 30A MPPT breakers) PV Wire: 300 ft (150 ft red + 150 ft black) 10× MC4 connectors Battery cables included Racking not included Free tech support (Solarman + manufacturer) Customizable on request

A balanced, high‑reliability system pairing the Fortress Envy 12K inverter with a single eVault Max 18.5 kWh battery and a 21‑panel Bluesun 460W array. Includes MidNite protection hardware and all core balance‑of‑system wiring and MC4 terminations. Racking is not included due to freight size, but we can help you source locally on any island — and we stock racking for Big Island pickup.

What’s Included

Fortress Envy 12K Inverter
12 kW split‑phase hybrid inverter, outdoor‑rated (NEMA 3R).
Fortress eVault Max 18.5 kWh Battery
High‑capacity 48V LFP storage, rack or floor mount.
21× Bluesun 460W Panels
≈9.66 kW DC PV array; bifacial, high output.
MidNite Quad Combiner
Configured with three 30 A breakers for MPPT inputs.
PV Wire
300 ft total — 150 ft red + 150 ft black (10 AWG typical).
MC4 Connectors
10 pcs for secure PV terminations.
Battery Cables
Heavy‑duty inverter‑to‑battery cables included.

Total system price: $19,500

Racking: too large to ship economically, but we’ll help you procure locally on your island. Big Island customers can purchase racking from our HPP warehouse.

Key Specifications

Envy 12K Inverter (high‑level)
Split‑phase 120/240V, 12 kW AC output; PV input up to 500 VDC; multiple MPPTs; hybrid/off‑grid capable.
eVault Max 18.5 kWh Battery
LiFePO₄ chemistry; nominal 48V class; high cycle life; CAN‑based comms with inverter ecosystem.

For detailed electrical design (string sizing, disconnects, conductor sizing), contact us — we’ll help ensure the array and BOS meet code and performance targets.

FREE SHIPPING TO OUTER ISLANDS — Kaua‘i • Maui • Lāna‘i • Moloka‘i • O‘ahu • FREE BIG ISLAND DELIVERY • TOTAL PRICE: $19,500 (SHIPPING INCLUDED) • RACKING: LOCAL PROCUREMENT (BIG ISLAND STOCK AVAILABLE) • FREE TECH SUPPORT (SOLARMAN + MANUFACTURER) •