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

A high-capacity off-grid solution designed for whole-home backup, larger cabins, small farms, and remote commercial loads. This turnkey configuration pairs a 10 kW SPH10000TL inverter with dual 48V 74Ah lithium batteries and a 7.2 kW (12×600W) solar array to deliver robust daytime production and reliable energy storage.

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).

Key Performance Estimates (Example Assumptions)

Runtime Examples (Using Usable Battery Only)

• 3,000 W continuous load → 5,683.2 Wh ÷ 3,000 W ≈ ~1.89 hours

• 1,000 W continuous load → 5,683.2 Wh ÷ 1,000 W ≈ ~5.68 hours

• 500 W continuous load → 5,683.2 Wh ÷ 500 W ≈ ~11.37 hours

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

1. Perform a site survey for shading, tilt, and optimal azimuth to maximize production.

2. Plan for expansion: extra inverter capacity, additional batteries, or more panels if future loads increase.

3. Mount panels with corrosion-resistant hardware and proper tilt for your latitude.

4. Commission the system with BMS/inverter/MPPT firmware configured for 48V battery chemistry and safety limits.

5. 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?

This 10 kW system strikes a strong balance between high instantaneous power (10 kW inverter), durable battery backup (≈7.1 kWh nominal), and substantial solar input (7.2 kW), making it an excellent choice for users who require reliable multi-kilowatt performance off grid. With proper sizing of MPPT and careful installation, the kit supports whole-home loads, farm equipment, and longer autonomy with modest battery expansion.Need a site-specific design or a quote? Contact our technical team to tailor battery capacity, inverter configuration, and panel layout to your exact load profile and location.