Matched power package
Combines major solar, storage, and inverter components so the system is easier to plan from the start.
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SunGoldPower
Off-Grid Solar Kit 18000W 48VDC 120V/240V LifePo4 30.72KWH Lithium Battery 20 X 450 Watts Solar Panels SGR- 18K20E Off-Grid Solar Kit 18000W 48VDC 120V/240V LifePo4 30.72KWH Lithium Battery 20 X 450 Watts Solar Panels SGR- 18K20E
SKU: SGR-18K20E
$16,930.00
$22,573.00
Save $5,643.00
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SunGoldPower Off-Grid Solar Kit
Off-Grid Solar Kit 18000W 48VDC 120V/240V LiFePO4 30.72KWH Lithium Battery 20 X 450 Watts Solar Panels SGR- 18K20E
The Off-Grid Solar Kit 18000W 48VDC 120V/240V LiFePO4 30.72KWH Lithium Battery 20 X 450 Watts Solar Panels SGR- 18K20E is a complete off-grid power package built around solar charging, lithium storage, and inverter output. It is made for customers who want a more complete path to backup power, remote power, or energy independence without piecing together the full system from scratch.
30.72KWH18000W450W48VDC120V240V20 X 450WOff-Grid
Backup and off-grid use
Built for properties that need stored energy, solar charging, and reliable AC output when grid power is limited or unavailable.
Simpler project planning
Helps reduce guesswork compared with sourcing panels, batteries, and inverter hardware separately.
A cleaner way to build a complete system
A complete solar power package saves time by bringing the major system pieces together around one goal: dependable stored power. It is built for customers who want a clearer path to an installed system instead of guessing through a long parts list.
- Built for customers planning a more complete solar and backup power system.
- Combines solar charging, lithium storage, and inverter output into one project-focused package.
- A strong fit for homes, cabins, farms, workshops, remote properties, and off-grid power builds.
- Helps reduce component-matching guesswork before installation.
Plan the solar array
Our solar panel selection guide helps compare panel types and ratings. For installation planning, the series versus parallel wiring guide explains the electrical difference between wiring panels in series and parallel.
Solar panel technical sheet
These kit options include SunGoldPower SGN-450-BDG5 450W bifacial N-type panels. Check the manufacturer panel datasheet (PDF) for module voltage, current, dimensions and installation limits before designing strings.
Package Includes
1 18000 Watt 48V DC 120V/240V AC Output
Package Includes
20 450W solar panels
Package Includes
2 100A MPPT Solar Charge Controller
Package Includes
6 100Ah CoreX 5 Pro Server Rack 51.2V Lithium Batteries
Package Includes
6 Battery Brackets for Batteries
Package Includes
2 50 Feet, Solar Extension Cables-Inverter PV input
Package Includes
2 4 AWG Cable Between Battery and MPPT Controller
Package Includes
20 Sets of Mounting Z-Brackets
Package Includes
1 400A DC Breaker
Package Includes
2 50A PV Breaker
Package Includes
2 4/0 AWG Cables (Breaker to Battery or Inverter Connection)
Package Includes
1 400A Busbar
| Off-Grid Solar Kit 18000W 48VDC 120V/240V LifePo4 30.72KWH Lithium Battery 20 X 450 Watts Solar Panels SGR- 18K20E | |
| Selected variant SKU | SGR-18K20E |
|---|---|
| MODEL | |
| Model / SKU | SGR-18K20E |
| Product Type | Solar Power Kit |
| ELECTRICAL | |
| 450W solar panels — Rated Power | 450 W per panel |
| 450W solar panels — Model | SGN-450-BDG5 |
| 450W solar panels — Open-circuit voltage (Voc, STC) | 35.03 V |
| 450W solar panels — Short-circuit current (Isc, STC) | 16.05 A |
| 450W solar panels — Maximum power voltage (Vmp, STC) | 30.08 V |
| 450W solar panels — Maximum power current (Imp, STC) | 14.97 A |
| 450W solar panels — Module efficiency (STC) | 22.5% |
| 450W solar panels — Dimensions | 69.37 × 44.65 × 1.38 in |
| 450W solar panels — Weight | 53.35 lb per panel |
| 18000 Watt 48V DC 120V/240V AC Output — Continuous AC Output | 18,000 W |
| 18000 Watt 48V DC 120V/240V AC Output — Peak AC Output | 54,000 W |
| 18000 Watt 48V DC 120V/240V AC Output — AC Output Voltage | 120/240 VAC split phase |
| 18000 Watt 48V DC 120V/240V AC Output — Output Frequency | 50/60 Hz |
| 18000 Watt 48V DC 120V/240V AC Output — Battery Voltage | 48 VDC |
| Solar Array Configuration | 20 × 450W panels (9,000W rated total) |
| Battery System Voltage | 48VDC |
| Listed Capacity | 30.72KWH |
| Listed System Voltage | 120V |
| Listed Inverter Output | 18000W |
| PHYSICAL | |
| 18000 Watt 48V DC 120V/240V AC Output — Dimensions | 28.7 × 16.5 × 8.7 in |
| 18000 Watt 48V DC 120V/240V AC Output — Weight | 197.1 lb |
| 100Ah CoreX 5 Pro Server Rack 51.2V Lithium Batteries — Dimensions | 20.80 × 17.64 × 5.91 in |
| 100Ah CoreX 5 Pro Server Rack 51.2V Lithium Batteries — Weight | 94.8 lb |
| OPERATING LIMITS | |
| 100Ah CoreX 5 Pro Server Rack 51.2V Lithium Batteries — Warranty | 10 years |
| PACKAGE | |
| Included Components | 1 × 18000 Watt 48V DC 120V/240V AC Output, 20 × 450 Watt Monocrystalline Solar Panels, 2 × 100A MPPT Solar Charge Controller, 6 × 100Ah CoreX 5 Pro Server Rack 51.2V Lithium Batteries, 6 × Battery Brackets for Batteries, 2 × 50 Feet, Solar Extension Cables-Inverter PV input, 2 × 4 AWG Cable Between Battery and MPPT Controller, 20 × Sets of Mounting Z-Brackets, 1 × 400A DC Breaker, 2 × 50A PV Breaker, 2 × 4/0 AWG Cables (Breaker to Battery or Inverter Connection), 1 × 400A Busbar |
Frequently Asked Questions
Clear answers to common questions about this product, setup, compatibility, and use.
How can I verify every shipped component in the SGR-18K20E configuration?
The exact package is defined by the selected variant and its Package Includes list, centered on 18000W, 30.72KWH of battery storage, and 20 panels rated 450W each. Verify quantities for batteries, panels, controllers, cables, breakers, brackets, and racks before checkout because similar SunGoldPower kits use different component counts.
Does 18000W describe continuous power or total daily energy for the SGR-18K20E?
Do not size from nameplate watts alone. Add simultaneous continuous loads, then separately check startup demand and duration for compressors, pumps, motors, microwaves, and heating equipment against every inverter, leg, outlet, transfer, and battery-current limit.
Can 30.72KWH cover a full outage for my home with the SGR-18K20E?
Build an hourly watt-hour load profile and compare it with usable battery energy after reserve, inverter loss, battery temperature, standby consumption, and aging. High-power appliances may fit the inverter yet consume the available 30.72KWH much faster than expected.
Can the SGR-18K20E's solar field recover the battery while daytime loads remain active?
Daily harvest depends on site-specific peak sun hours, season, tilt, shade, snow, module temperature, wiring, and conversion loss. The string design must also keep cold open-circuit voltage, operating current, and tracker allocation inside the exact controller or inverter limits.
What neutral and ground decisions apply to the SGR-18K20E's split-phase output?
The title identifies a 120V/240V system, but an installer must still verify per-leg limits, load imbalance, neutral and ground treatment, transfer equipment, breakers, conductor sizes, and which circuits belong in the backed-up panel.