Rocksolar 10kW Off-Grid Solar Kit with Hybrid Inverter, 48V Lithium Storage & 12×600W Panels

10 kW Off-Grid Solar System — SPH10000TL Inverter + 2×48V 74Ah Batteries + 12×600W Panels

Core Components

• Inverter: SPH10000TL — 10 kW continuous output (pure sine wave; verify surge capability for motor starts).
• Batteries: 2 × 48V 74Ah (each = 48V × 74Ah = 3552 Wh; combined nominal = 7104 Wh).
• Solar Array: 12 × 600W panels = 7200 W (7.2 kW) nominal DC.
• Recommended Charge Controller(s): MPPT(s) sized to handle ~150 A at 48V (see sizing notes).

Typical Applications

• Full off-grid or backup power for larger cabins and rural homes
• Small farms and agricultural pumps (with appropriate motor start handling)
• Workshops, telecom sites, and remote commercial loads requiring multi-kW capacity
• Extended RV or caravan systems when paired with smart charge management

Recommended Supporting Components & Configuration Notes

• MPPT Charge Controller(s): Because the array can produce ~150 A at 48 V, use either a single high-current MPPT (≥160–200 A) or split the array between two or more MPPT inputs to meet voltage/current limits and improve reliability.
• Battery Management System (BMS): Required for cell balancing, safety, and long battery life. Ensure the inverter and BMS communicate properly.
• Surge Capacity: Verify inverter’s surge rating for motor starts (pumps, compressors). Add soft-start devices if needed for heavy inductive loads.
• Protection & Controls: DC fuses, breakers, disconnects, and proper grounding per local code (NEC/CEC or local authority).
• Cabling: Use appropriately gauged battery and PV cabling to limit voltage drop; consider a PV combiner for array organization.
• Array Layout: Design string length (series/parallel arrangement) to keep Voc and Vmp within MPPT/inverter limits across temperature ranges.

Installation & Best Practices

• Perform a site survey for shading, tilt, and optimal azimuth to maximize production.
• Plan for expansion: extra inverter capacity, additional batteries, or more panels if future loads increase.
• Mount panels with corrosion-resistant hardware and proper tilt for your latitude.
• Commission the system with BMS/inverter/MPPT firmware configured for 48V battery chemistry and safety limits.
• Follow local electrical code and obtain required permits and inspections.

Maintenance & Warranty Guidance

• Inspect panels, mounts, and wiring annually; clean panels when needed.
• Monitor battery health using BMS logs and maintain recommended temperature/storage conditions.
• Keep inverter and MPPT firmware current where supported.
• Confirm manufacturer warranties for panels, inverter, and batteries (typical ranges: panels 10–25 years, inverters 5–10 years, batteries vary by chemistry and supplier).

Why Choose This Configuration?