EG4 12000XP Complete Off-Grid Solar Kit | 7.7kW Solar | 20.48kWh Server Rack Batteries

Name: EG4 12000XP Complete Off-Grid Solar Kit | 7.7kW Solar | 20.48kWh Server Rack Batteries
Brand: EG4
SKU: EG4-12000XP-7-20.4-SG-O
Price: 12238.37 USD
Availability: OutOfStock

BY: EG4

SKU: EG4-12000XP-7-20.4-SG-O

| Availability: Out of stock

$12,799.00

$12,238.37

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Product Highlights

Built for home backup and off-grid power
20,400 Wh capacity for extended backup and off-grid runtime
7,000 W solar output for larger off-grid energy systems
12,000 W output to run high-demand appliances and equipment

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EG4 12000XP Complete Off-Grid Solar Kit | 7.7kW Solar | 20.48kWh Server Rack Batteries

Power your off-grid home and prepare for outages with the EG4 12000XP Complete Off-Grid Solar Kit. Combining a 12kW off-grid inverter, 14 × SunGold Power 550W monocrystalline solar panels, and 20.48kWh of server rack battery storage, this system brings solar generation and stored energy together in one configurable package.

The EG4 12000XP provides 120/240V split-phase power and supports utility or generator input for additional charging and backup flexibility. Choose your preferred battery configuration to build a system suited to your household loads, daily consumption, and available sunlight.

EG4 12000XP Complete Off-Grid Solar Kit Features

Powerful 12kW Off-Grid Inverter – Provides 12,000W continuous output and supports up to 24,000W of utilized PV input, leaving room for future solar expansion within its electrical limits.
7.7kW Solar Array – Includes 14 × SunGold Power 550W Monocrystalline PERC Solar Panels, providing 7,700W of combined rated solar capacity for daytime electricity and battery charging.
20.48kWh Battery Options – Choose 4 × 5.12kWh LiFePO4 batteries from SunGold Power, EG4, Rich Solar, RUiXU, or SOK, with communication options based on the selected configuration.
Dual MPPT Solar Charging – Two independent 35A MPPTs provide flexibility when designing solar strings and managing the connected array.
Utility and Generator Support – Accepts external AC power to supplement the system when solar production or stored energy is insufficient.
Organized Server Rack Storage – Includes a matching battery rack or cabinet, keeping the selected battery bank together in a practical storage arrangement

EG4 12000XP Complete Off-Grid Solar Kit Applications

Off-grid homes and cabins: Supply everyday household loads with a system sized for your consumption and seasonal solar conditions.
Home backup power: Keep selected essential circuits operating during utility outages.
Remote properties: Generate and store electricity where utility access is limited.
Homesteads and workshops: Support compatible pumps, tools, lighting, and appliances within the system’s operating limits.

What's Included

Everything you need is included with your product.

Inverter:

EG4 12000XP - 12000W Output - 24000W PV Input - 48V - 120/240V Split Phase

Battery Options (Choose One):

4 x Sungold Server Rack - 20.4kWh - Open Loop
4 x EG4 LL-S - 20.4kWh - Closed Loop
Rich Solar Alpha 5 Pro - 20.4kWh - Open Loop
4 x RUiXU 51.2V - 20.4kWh - Open Loop
4 x SOK 48V - 20.4kWh - Open Loop

Solar Panel:

14 × SunGold Power 550 Watt Monocrystalline Solar Panels (7.7kW)

Accessories:

2 x Rich Solar 10AWG Solar Extension Cable - 50ft
2/0AWG Battery Cable - 6ft - 5/16 Both Ends (Set Red & Black)
2 x 25A PV Breaker
14 x Z-Brackets
2 x 400A Class-T Fuse
2/0AWG Battery Cable - 6in - 5/16 Both Ends (Red Only)
3 x Replacement Inline Fuse Holder | Choose Amp: 10A, 15A, 20A, 30A

Accessory Based on Battery Choice:

SunGold Power 6-Slot Enclosed Battery Cabinet (Comes with SunGold)
EG4 Pre-Assembled EG4 Enclosed Battery Rack | 6 Slot | Wheels Included | Bus Bar Covers | Welded (Comes with EG4)
Rich Solar 6-Slot Enclosed Battery Cabinet (Comes with Rich Solar)
RUiXU 6-Slot Battery Cabinet (Comes with RUiXU)
SOK Battery Cabinet with Busbar (Comes with SOK)
4 x 4AWG Cable - 1ft - 5/16 Both Ends (Comes with SOK)

EG4 12000XP Complete Off-Grid Solar Kit Specifications

EG4 12000XP - 12000W Output - 24000W PV Input - 48V - 120/240V Split Phase Specifications

AC input data

Specification	Details
Nominal AC voltage (grid \| generator)	120/240VAC; 120/208VAC (L1/L2/N required)
Frequency (grid \| generator)	60 Hz (Default) \| 50 Hz (Configurable)
Grid max. continuous AC current	100A @ 240VAC
Max. AC input power	24000W
Generator max. continuous current	62.5A @ 240VAC
Recommended generator capacity	6000W – 15000W
AC bypass (grid \| generator)	100A \| 90A
Available fault current	5kA
Input short circuit current	150A peak @100us, per inverter

AC output data

Specification	Details
Output voltage	120/240VAC; 208VAC
Output frequency	60 Hz (Default) \| 50 Hz (Configurable)
Max. continuous output current*	62.5A @ 240VAC \| 62.5A @ 208V
Nominal power output*	w/ PV: 15000W @ 240V \| 13000W @ 208V \| w/out PV: 12000W @ 240V \| 12000W @ 208V
Max. continuous wattage	15000W (L1-L2) \| 7500W (L1-N or L2-N)
Peak power (surge capacity)**	15360W for ≈10s
Power factor value	.99
THD (V)	<3%
Switching time	<10 ms @ Single \| <20 ms @ Parallel

PV input data

Specification	Details
Number of MPPTs	2
Inputs per MPPT	2/2
Max. usable input current	35A/35A
Max. short circuit input current	44A/44A
DC input voltage range***	100 – 480 VDC
Min. startup voltage	100 VDC
MPPT operating voltage range	120 – 385 VDC
Nominal MPPT voltage	320 VDC
Max. PV input voltage***	500 VDC
Max. utilized solar power	24000W (12000 per MPPT)
Max. recommended solar input	28000W (14000 per MPPT)

Sungold Server Rack - 20.4kWh - Open Loop Specifications

Specification	Details
Product Model	SG48100P
Battery Type	Lithium iron phosphate battery
Rated capacity	100Ah
Nominal voltage	51.2V
Recommended charging voltage	54.5V
Charging Limited Voltage	57.6V
SOC working range	0~100%
Standard discharge current	50A
Maximum continuous discharge current	100A
Standard charging current	50A
Maximumcontinuous-charge current	100A
Maximum cut-off voltage for charging.	57.6V
Charge cutoff.current	5A
Disharge cut-off voltage	43.2V
PACK.cycle life	≥7000
Thermal management method	Natural heat dissipation
IP protection class	IP31 battery box
Flammability rating	plastic parts UL94 V-0
Total system mass	Around 93lb
Battery system shell materia	BLACK Q235A
Shipping SOC	SOC45-55%
Dimension (LxWxH mm)	19.3x18.9x5.5inch
Design life	15 Year
Parallel function	Supports up to 32 batteries in parallel
Anti-theft function	sensor G-sensor anti-theft function
Display function	English smart display
Charging current limit function	Current limit 20A
Communication mode	RS232/RS485/CAN
Communication protocol	Support multiple protocols
Storage ambient temperature	14°F~113°F
Working temperature	Battery charging:32°F~113°F, Battery discharging:-4°F~140°F
Relative humidity of working environment	≤95

EG4 LL-S - 20.4kWh - Closed Loop Specifications

Module Operating Parameters

Specification	Details
Voltage	51.2V
Capacity	100AH
Charging Voltage (Bulk/Absorb)	56.8V \| 56.2V (+/-0.2V)
Float	54V (+/-0.2V)
Low DC Cutoff	44.8V \| 47-45.6V (start high, lower as needed)
Charging Current	100A (Max. continuous) \| 30-50A
Discharging Current	100A (Max. continuous) \| 90A

Environmental Parameters

Specification	Details
Charging Range	32° ‒ 113°F (0°C to 45°C)
Discharging Range	-4°F ‒ 122°F (-20°C to 50°C)
Storage Range	-4°F ‒ 122°F (-20°C to 50°C)
Ingress Protection	IP20

Charging/ Discharging Parameters (Charge)

Specification	Details
Cell Voltage Protection	3.8V \| 1 sec \| 3.45V
Module Voltage Protection	60.0V \| 1 sec \| 55.2V
Over Charging Current 1	>102A \| 20 sec
Over Charging Current 2	>120A \| 3 sec
Temperature Protection	<23°F or >158°F <-5°C or >70°C \| 1 sec \| >32°F or <140°F >0°C or 60°C

Charging/ Discharging Parameters (Discharge)

Specification	Details
Cell Voltage Protection	2.3V \| 1 sec \| 3.1V
Module Voltage Protection	44.8V \| 1 sec \| 48V
Over-Charging Current 1	>102A \| 30 sec \| 60 sec
Over-Charging Current 2	>150A \| 3 sec \| 60 sec
Short Circuit	>300A \| <0.1 mS
Temperature Protection	<-4°F or >167°F <-20°C or >75°C \| 1 sec \| >14°F or <149°F >-10°C or <65°C
PCB Temp Protection	>221°F (>105°C) \| 1 sec \| @ <176°F (<80°C)

General Specifications

Specification	Details
Cell Balance	120mA \| Passive Balance \| Cell Voltage Difference >40mV
Temperature Accuracy	3% \| Cycle Measurement \| Measuring Range: 40°F ‒ 212°F (-4°C ‒ 100°C)
Voltage Accuracy	3% \| Cycle Measurement \| Measurement Range: +/-200A
SOC	5% \| Integral Calculation
Power Consumption	Sleep & Off Mode \| <300uA \| Storage/Transport/ Standby
Power Consumption	Operating Mode \| <25mA \| Charging/Discharging
Communication Ports	RS485/CAN \| Customizable
Maximum Modules in Series	1
Maximum Modules in Parallel	64
Dimensions (H×W×D)	6.1in×19in×17.4in (15.5cm×48.2cm×44.2cm)
Weight	99.6 lbs. (45.2 kg)
Module	ETL Listed to UL Standard 9540A:2019
Cell	UL:1973

Rich Solar Alpha 5 Pro - 20.4kWh - Open Loop Specifications

Specification	Details
Battery Type	LFP Battery
Nominal Voltage	51.2V
Nominal Capacity	100Ah
Minimum Capacity	99.5Ah
Nominal Energy	5120Wh
Charging Voltage	56V
Discharging Cutoff Voltage	44.8V
Standard Charging Current	20A
Maximum Charging Current	100A
Standard Discharge Current	50A
Continuous Discharge Current	100A
Maximum Discharge Current	100A
Shell Material	Sheet metal casing
Weight	99.20lb
Initial AC（1000Hz）Internal Resistance	≤50mΩ
Monthly Self-Discharge Rate	≤5%
Overall Dimensions	17.7x17.8x5.2in
Cycle Life(Times)(25℃±2℃)	≥7000; Capacity Retention≥70%

RUiXU 51.2V - 20.4kWh - Open Loop Specifications

Specification	Details
Rated voltage	51.2V
Max. voltage range	56.0V
Charge voltage	4 Person
Float charge voltage	54.6V
Low voltage cut-off	44.8V
Nominal energy	5.12KWh
Usable energy	4.92kWh
Nominal capacity	100Ah
Dimension	482133.5460mm (18.95.218.1 inch)
Weight	~46kg (101lb)
Standard charge current	≤50A
Max. charge current	70A
Standard discharge current	≤50A
Max. discharge current	100A (initial temp. ≤35℃)
Peak discharge current	101~119A@5mins \| 120~200A@5S
Communication	RS485 /CAN
Max parallel number	32pcs
Operation temperature 1	Charge: 0~50℃ \| Discharge:-20~50℃
Storage temperature (0℃	＜6 months
Storage temperature (-10℃	＜3 months
Storage temperature (Recommended environment)	15~35℃, 5~75%RH

SOK 48V - 20.4kWh - Open Loop Specifications

Electrical Performance

Specification	Details
Nominal Voltage	51.2 V
Nominal Capacity	100 Ah
Energy	5120 Wh
Self-Discharge	< 3% / Month
Cells	3.2 V 100 Ah

Charge Performance

Specification	Details
Recommended Charge Current	50 A
Maximum Charge Current	100 A
Recommended Charge Voltage	≤ 58.4 V
Maximum Batteries in Series	48

Discharge Performance

Specification	Details
Maximum Continuous Discharge Current	100 A
Peak Discharge Current	120 A / min
Recommended Low Voltage Disconnect	44.8 V

Temperature Performance

Specification	Details
Discharge Temperature	–4 ~ 140 °F (–20 ~ 60 °C)
Charge Temperature	–4 ~ 122 °F (–20 ~ 50 °C)
Storage Temperature	23 ~ 95 °F (–5 ~ 35 °C)
BMS High-Temperature Cut-Off	Discharge 167 °F (75 °C) / Charge 158 °F (70 °C)
Reconnect Temperature	Discharge 149 °F (65 °C) / Charge 140 °F (60 °C)

Mechanical Performance

Specification	Details
Dimensions (L × W × H)	19.14 × 16.95 × 5.22 in
Approx. Weight	100 lb
Terminal Type	M8
Terminal Torque	80 ~ 100 in-lbs
Case Material	SPCC + SGCC
Enclosure Protection	IP20

Inverter Supported

CAN	RS485
Victron / SMA / SOFAR / Studer Innotec	Voltronic / RCT / MPP / Alphaoutback
PYLON / Sol-Ark / Solis / Goodwe / Deye / Growatt / SAJ / Megarevo / INVT / Sermatec / TBB / MUST / Sunsynk	SRNE / RYLON / Growatt
Schneider	4 Person
LUXPOWER	Yes

Frequently-Asked Questions

Can this kit power my entire home?

It can support whole-home or essential-load operation, depending on your appliances and energy usage. The 12kW inverter must be sized for your simultaneous loads and appliance starting requirements.

How much solar power is included?

The kit includes 14 × SunGold Power 550W Monocrystalline Solar Panels, totaling 7.7kW of rated solar capacity. Actual production varies with sunlight, shading, temperature, and panel placement.

How long will the batteries provide backup power?

The four batteries provide 20.48kWh of nominal storage. Runtime depends on your connected loads, battery charge level, discharge settings, and system losses.

Can I connect utility power or a generator?

Yes. The EG4 12000XP supports utility and compatible generator input for supplemental power and battery charging. It does not support selling electricity back to the utility grid.

Can I expand the system later?

Yes, additional compatible batteries or solar panels may be added within the inverter’s electrical limits and the battery manufacturer’s requirements. Expansion may require additional equipment and wiring.

Manual

Shipping & Easy Returns

Shipping is free across the Lower 48. No fuel surcharges, no residential fees, and no liftgate charge on freight orders. The price you see is the price you pay. Read our full Shipping Policy here.

Most orders leave the warehouse in 1 to 2 business days and arrive within 3 to 10 business days. We send tracking the moment it ships.

Anything that ships on a pallet goes freight with liftgate and pallet jack included, so the driver gets it off the truck and onto the ground at your address. The carrier will call you directly to schedule a delivery window.

Returns are 30 days from delivery. For freight deliveries, inspect the shipment before you sign for it. If something is damaged in transit, note it on the delivery receipt and we handle the freight claim, not you. Read more about our Returns Policy here.

Why Buy From Us

Buying solar online should not mean guessing your way through the install. Here’s what you get with Off-Grid Source.

We size the system, not just sell it. Call before you order and a sales engineer will check the kit against your actual loads, tell you if you’re buying too much or too little, and list the site-specific parts your install will need.
A+ rated by the Better Business Bureau. Another trust signal that you’re buying from a real company that stands behind the sale.
Free shipping across the Lower 48. No hidden freight charges, residential fees, or liftgate surprises at checkout.
Guaranteed best prices. Find the same product for less elsewhere and we’ll match it.
30-day easy returns. If it is not the right fit, we’ll help you get it sent back.
A real person on the phone. Product questions, sizing, install planning, warranty help: call us at +1 (877) 556-3347.

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Trusted By 10,000+ Customers. See All Reviews.

They Stood By Me

I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!

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I am always hesitant to buy things at places I have never shopped... I want to give a shout out to Manny who with great patience and knowledge helped me get my orders... I felt valued as a customer and I will definitely be back in the future. I highly recommend them, they make you feel like family.

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I'm about to go off grid. I called Manny, he walked me through everything so I could truly understand what I needed and never tried to upsell me. He was honest and made a customer for life.

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Easy Return

I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!

Roger V.

Totally Off Grid.

I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.

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We added 2 more batteries to our current set up. Pleased with the customer service from Off-Grid Source! Will be back!

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Excellent Customer Service

Very fast response times. Very professional. I highly recommend!

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EG4 12000XP Complete Off-Grid Solar Kit | 7.7kW Solar | 20.48kWh Server Rack Batteries

Product Highlights

EG4 12000XP Complete Off-Grid Solar Kit | 7.7kW Solar | 20.48kWh Server Rack Batteries

EG4 12000XP Complete Off-Grid Solar Kit Features

EG4 12000XP Complete Off-Grid Solar Kit Applications

What's Included

EG4 12000XP Complete Off-Grid Solar Kit Specifications

EG4 12000XP - 12000W Output - 24000W PV Input - 48V - 120/240V Split Phase Specifications

Sungold Server Rack - 20.4kWh - Open Loop Specifications

EG4 LL-S - 20.4kWh - Closed Loop Specifications

Rich Solar Alpha 5 Pro - 20.4kWh - Open Loop Specifications

RUiXU 51.2V - 20.4kWh - Open Loop Specifications

SOK 48V - 20.4kWh - Open Loop Specifications

Frequently-Asked Questions

Manual

Shipping & Easy Returns

Why Buy From Us

Why Choose Off Grid Source

Our Customers Tell It Better Than We Do

They Stood By Me

Awesome Service!

Real Person, Honest Service.

Easy Return

Totally Off Grid.

Great Product! Fast Shipping

Excellent Customer Service