BLUETTI EP900 + Hanersun 440W 20kWh Storage Bundle

FREE SHIPPING on this complete bundle to the contiguous United States.

A complete, whole-home solar + storage system engineered for energy independence. This bundle pairs 12 high-efficiency Hanersun 440W solar panels with the BLUETTI EP900 9kW Energy Storage System and four BLUETTI B500 battery modules for a total of 20kWh of LiFePO4 storage and 5,280W of solar generation capacity. Whether you're looking to eliminate your electric bill, protect against outages, or make the most of time-of-use rates, this system is built to do it all.

What's Included

• 12x Hanersun 440W Residential Solar Panels (HN18N-54HT) - 5,280W total generation capacity; monocrystalline PERC cells, IP68-rated junction box, 25-year linear power warranty
• 1x BLUETTI EP900 Energy Storage System - 9,000W continuous output, 9,000W AC/solar input, 120V/240VAC split-phase, UL1741 SA/SB certified, 10-year warranty
• 4x BLUETTI B500 Battery Modules - 4.96kWh each, 19.84kWh (~20kWh) total; LiFePO4 chemistry, passive fanless cooling, NEMA 4X rated
• BLUETTI Floor Mount Stand - Included FREE; purpose-built wall/floor mounting solution for the EP900 + B500 stack, keeps the system secure and installation-ready
• Reliance Controls Sub Panel - Included FREE; simplifies load management for backup circuits, making whole-home backup installation clean and code-compliant

System Highlights

• 20kWh Total Storage - Four B500 modules stack to deliver approximately 20kWh of usable LiFePO4 energy storage - enough to power an average home through the night or a multi-day outage
• 9,000W Inverter Output - The EP900 handles up to 9kW of continuous AC output on-grid (7.6kW off-grid), powering high-demand appliances including HVAC, EV chargers, and kitchen equipment simultaneously
• 5,280W Solar Array - Twelve 440W panels feed directly into the EP900's dual MPPT inputs (9kW PV capacity, 150-500V range), maximizing harvest throughout the day
• Sub-10ms Grid Switching - Seamless transfer to battery backup in under 10 milliseconds - fast enough that most electronics and appliances never notice the switch
• Whole-Home Backup Ready - Wires directly into your main panel via standard household AC wiring for whole-home coverage, not just a few circuits
• Smart Energy Management - Peak-load shifting, time-of-use scheduling, and adjustable energy plans via the BLUETTI app (Wi-Fi / Bluetooth / USB)
• Scalable Design - The EP900 supports 2-8 B500 modules; start with 4 and expand up to 19.8kWh (single EP900) or 39.6kWh with dual EP900 units
• Built to Last Outdoors - NEMA 4X rated inverter and battery modules; panels rated for high-wind and snow loads; system designed for indoor or outdoor installation

Technical Specifications

Solar Array

• Panels: 12x Hanersun HN18N-54HT 440W
• Total Capacity: 5,280W
• Cell Type: Monocrystalline PERC
• Panel Efficiency: Up to 22.4%

BLUETTI EP900 Inverter/ESS

• Output Power: 9,000W (on-grid) / 7,600W (off-grid)
• Grid Voltage: 120V/240VAC split-phase
• PV Input: 9kW max, 150-500V MPPT range, dual channel
• Round-Trip Efficiency: >85% (AC/AC)
• Grid Switching Time: <10ms
• Connectivity: Wi-Fi / Bluetooth / USB
• Weight: 105.8 lbs (48kg) | NEMA 4X
• Warranty: 10 Years
• Certifications: UL9540, UL1741, UL1741 SA/SB, IEEE 1547, California Rule 21

BLUETTI B500 Battery (x4)

• Capacity per Module: 4.96kWh
• Total Storage: ~20kWh (4 modules)
• Chemistry: LiFePO4 (Lithium Iron Phosphate)
• Cooling: Passive, Fanless
• Weight: 127.8 lbs (58kg) per module
• Operating Temp: 4?F to 104?F (-20?C to 40?C)
• NEMA Rating: NEMA 4X
• Certifications: IEC62619, UL1973, UL9540A, UN38.3

Applications

• Whole-home energy independence and grid independence
• Backup power for critical loads during outages
• Time-of-use rate optimization and electric bill reduction
• EV charging supported by solar and storage
• New construction or retrofit installations
• Rural or off-grid properties requiring reliable, high-capacity power

Frequently Asked Questions

Does this system require professional installation?
Yes. The EP900 connects to your home's main electrical panel and requires installation by a licensed electrician or solar installer. Solwel can connect you with certified installers in your area.

Can the system power my whole home during an outage?
Yes. The EP900 supports whole-home backup by wiring directly into your main panel. With 20kWh of storage and 9kW of output, it can run most homes through overnight or multi-day outages depending on usage.

What is the Reliance sub panel used for?
The included Reliance Controls sub panel allows you to cleanly organize and protect your backup circuits, making the installation neater and ensuring your critical loads are properly separated from non-essential circuits.

Can I add more batteries later?
Yes. The EP900 supports up to 8 B500 modules (19.8kWh). You can start with 4 modules and add more at any time. Two EP900 units can be paired together for up to 39.6kWh total.

Is this system grid-tied or off-grid?
The EP900 is a hybrid system - it operates grid-tied with seamless backup, and can function in off-grid mode as well. It is UL1741 SA/SB certified for both modes.

What is the warranty?
The EP900 inverter carries a 10-year limited warranty from BLUETTI. The Hanersun panels carry a 25-year linear power warranty and 12-year product warranty. Contact Solwel for full warranty details on each component.