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HS2-3k~6k Single Phase All-in-One Energy Storage System

HS2-3k~6k Single Phase All-in-One Energy Storage System
HS2-3k~6k Single Phase All-in-One Energy Storage System
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HS3-(3-6K)-S2 Series Single-phase RD and UNE Certificate-ES
Home » Products » HS2-3k~6k Single Phase All-in-One Energy Storage System

Technical Specifications at a Glance

AC Power 3kW - 6kW
Inverter Type All-in-one hybrid energy storage system
MPP Voltage Range 90 – 500 Volt
MPP Tracker 2
Phases 1
Communication CAN, RS485, Wi-Fi, Ethernet, 4G, DRM, Bluetooth
Pieces per Package 1 per carton, 8 per pallet
Warranty 10 years
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What This Model Is Best For

A Single Phase all-in-one energy storage system covering 3-6 kW, integrating PCS, BMS, EMS, and battery in a single unit. The HS2 series is SAJ's established all-in-one platform for residential storage, suited for single-phase homes needing a packaged storage solution.

92%

Round-trip battery efficiency — 3-6 kW all-in-one ESS with integrated LFP storage

  • Integrated inverter, battery, BMS, and EMS in a single plug-and-play enclosure
  • 3-6 kW output with modular 5.12 kWh battery expansion up to 20.48 kWh
  • App-based commissioning and remote monitoring reduce installer on-site time
Technical & Grid Integration Specs
Battery SystemLFP (LiFePO4) chemistry, 6,000+ cycles at 80% DOD, modular 5.12 kWh expansion
Grid + EPSVDE-AR-N 4105, G98; EPS backup with <20 ms ATS switchover to battery power
EMS FunctionsSelf-consumption optimisation, time-of-use scheduling, and peak shaving modes
SafetyType II SPD, battery thermal management, and cell-level fusing with BMS protection

Use this model when…

  • The site requires a dedicated 3-6 kW all-in-one ESS with integrated LFP storage
  • The string current matches module specs with zero clipping risks
  • The installer has confirmed the matching local grid-code certifications

Choose another model when…

  • The total string open-circuit voltage exceeds safety limits
  • A different grid phase or system-level battery topology is required
  • Local regulations demand centralized substation inverter architectures

Quote-prep checklist

  • Confirm desired battery capacity (5.12–20.48 kWh) and order correct module count
  • Verify single-phase grid connection and backup load circuit wiring
  • Configure self-consumption or TOU mode via the commissioning app

Installation, Walkthrough, and Product Videos

Use these videos for installation review, commissioning checks, and client-facing product walkthroughs.

HS2 ALL-IN-ONE Residential Energy Storage Solution Installation Guide (Single-Phase)

SAJ H2 & HS2 series Initialization Setting - Sept. 2024

Explore why HS2 series so far is the most popular SAJ ALL-IN-ONE residential energy storage system

HS2 Webinar in English

SAJ Electricity Meter setting(H2/B2/HS2/R6/C6,etc)

SAJ Spotlight @GENERA: Smart Residential Energy Storage Solutions

Product Video Showcase

Where This Model Fits Best

Three application scenarios for the HS2-3k~6k Single Phase All-in-One Energy Storage System, showing where this 3-6 kW product belongs on the shortlist and where it does not. Review these before quote approval.

HS2 home studio application
01

Single-Phase All-in-One Residential ESS

For a 3-6 kW single-phase home needing a complete storage package in one enclosure, the HS2 3-6kW provides integrated PCS, BMS, EMS, and battery. This eliminates the need to source and commission separate components.

  • Daily energy consumption profile assessed
  • Battery capacity and backup duration confirmed
  • Backup-load circuits identified
  • All-in-one vs separate system architecture decision made

An all-in-one ESS trades component flexibility for simpler installation. Confirm this tradeoff works for the project.

HS2 urban home office application
02

Retrofit Storage for Existing PV Homes

For homeowners with existing PV who want to add battery storage, an HS2 can be AC-coupled to the existing system. Confirm the existing inverter and grid connection are compatible with AC-coupled storage before quoting.

  • Existing PV inverter and grid connection confirmed
  • AC-coupling compatibility assessed
  • Battery capacity matched to consumption and PV generation

Not all existing PV inverters support AC coupling. Verify compatibility before quoting.

HS2 suburban house application
03

HS2 vs HS3: Which All-in-One ESS to Choose?

If evaluating between HS2 and HS3, the HS3 is the newer-generation platform with plug-in design, IP65 enclosure, and EV charger readiness. The HS2 remains a capable platform for budget-conscious projects. Compare datasheets for both.

  • HS2 3-6kW datasheet reviewed
  • HS3 3-6kW datasheet reviewed
  • Budget and feature comparison complete
  • Installer preference confirmed

For new installations, the HS3 provides a longer-term platform.

What Buyers Get Before Quote Approval

From requirement check to document pack and quotation, Sunriver keeps the process clear for distributor and project teams.

Consultation meeting

Talk & Plan

We listen to your needs and create a plan that works for you. Our team will help you understand all your options.

Quote and agreement

Quote & Agree

You get a clear price with no hidden costs. Once you're happy with everything, we sign the agreement and start working.

Production and quality control

Make & Check

We carefully make your order and check everything meets our high standards. You'll know exactly how things are going.

Delivery and support

Ship & Support

Your order ships safely to you on time. We're always here to help if you need anything after delivery.

Ready to start your project?
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FAQ for Technical Review

Product-specific technical questions for buyers, installers, and distributors reviewing the HS2-3k~6k Single Phase All-in-One Energy Storage System before quotation. Each answer includes technical criteria, a pre-quote checklist, and a caveat to avoid common procurement mistakes.

How do I confirm the HS2 3-6kW is the right all-in-one ESS for my project?

Confirm your AC output target is within 3-6 kW, single-phase grid connection, and that an all-in-one integrated ESS (not a separate inverter-plus-battery system) is the right architecture. The HS2 integrates PCS, BMS, EMS, and battery in one unit.

What to check

  • Confirm AC output target within 3-6 kW
  • Confirm single-phase grid connection
  • Confirm all-in-one ESS architecture is appropriate
  • Confirm battery capacity and backup duration

If you need a separate inverter and battery system, an all-in-one ESS may not be the right choice.

What is the difference between an all-in-one ESS and a separate hybrid inverter + battery?

An all-in-one ESS integrates PCS, BMS, EMS, and battery in a single enclosure. A separate hybrid inverter + battery has these as distinct components. All-in-one systems reduce installation complexity but offer less flexibility in component selection and future expansion.

What to check

  • Compare installation complexity: all-in-one vs separate
  • Assess future expansion needs
  • Compare warranty and service models
  • Confirm installer preference

The right choice depends on the project installation timeline, budget, and long-term flexibility requirements.

What documents are essential before quoting the HS2 3-6kW?

Review the HS2 Single Phase All-in-One Solution HS2-3-6K Datasheet for specifications, the user manual for installation and operation, and the configuration instructions for system setup. Having all three documents reviewed before quoting reduces the risk of post-purchase configuration issues.

What to check

  • Review HS2 Single Phase All-in-One Solution HS2-3-6K Datasheet for electrical specifications
  • Review user manual for installation and operation
  • Review configuration instructions for system setup
  • Confirm grid-code compliance for destination country

Having all three documents reviewed before quoting prevents post-purchase configuration issues.

How does the HS2 3-6kW compare to the HS3 3-6kW?

The HS3 is the newer-generation platform with plug-in design, IP65 enclosure, and EV charger integration readiness. The HS2 remains a capable platform for budget-conscious projects. For new residential ESS installations, the HS3 is the recommended platform.

What to check

  • Compare HS2 and HS3 datasheets
  • Assess plug-in design and IP65 benefits
  • Consider EV charger readiness for future expansion
  • Confirm installer preference and availability

For new installations, the HS3 platform provides a longer-term support horizon.

What project details should I send for an HS2 3-6kW quote?

Send the destination country, single-phase grid details, AC output target, daily energy consumption, backup-load requirements, and preferred battery capacity. If comparing against HS3, note that so both options can be included.

What to check

  • Destination country and grid code
  • AC output target and daily consumption
  • Backup-load requirements
  • Battery capacity preference
  • HS3 comparison needed?

Commercial terms are confirmed through a formal Sunriver quotation.

Compare Nearby Models

Review adjacent models before you finalize the shortlist.

HS2-5k~10k Three Phase All-in-One Energy Storage System

HS2-5k~10k Three Phase All-in-One Energy Storage System

AC Power: 5kW - 10kW
Type: All-in-one hybrid energy storage system
MPP Range: 180 – 900 Volt
Phases: 3
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CHS2-30k~50k Three Phase All-in-One Energy Storage System

CHS2-30k~50k Three Phase All-in-One Energy Storage System

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Type: All-in-one hybrid energy storage system
MPP Range: 180 – 850 Volt
Phases: 3
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HS3-3k~4k Three Phase All-in-One Energy Storage System

HS3-3k~4k Three Phase All-in-One Energy Storage System

AC Power: 3kW - 4kW
Type: All-in-one hybrid energy storage system
MPP Range: 180 – 900 Volt
Phases: 2
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HS3-5k~12k Three Phase All-in-One Energy Storage System

HS3-5k~12k Three Phase All-in-One Energy Storage System

AC Power: 5kW - 12kW
Type: All-in-one hybrid energy storage system
MPP Range: 180 – 900 Volt
Phases: 3
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HS3-3k~6k Single Phase All-in-One Energy Storage System

HS3-3k~6k Single Phase All-in-One Energy Storage System

AC Power: 3kW - 6kW
Type: All-in-one hybrid energy storage system
MPP Range: 90 – 550 Volt
Phases: 1
View Details

Need Pricing, Documents, or Model Matching?

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