Skip to content
Free Shipping + Tax Exempt (Exceptions may apply) Call/Text for discounts | +1 307-248-7227
Free Shipping + Tax Exempt (Exceptions may apply) | Lowest Prices Guaranteed

SimpliPhi, SPHI-ESS-30-18, Energy Storage System: 6 Batteries, 29.88 kWh, AC or DC Coupled 18000W, Includes AGS

SKU SPHI-ESS-30-18
Save 18% Save 18%
Original price $48,378.66
Original price $48,378.66 - Original price $48,378.66
Original price $48,378.66
Current price $39,429.99
$39,429.99 - $39,429.99
Current price $39,429.99

In Stock & Ready to Ship

Orders ship in 1-2 business days with a 4-7 day ETA*. Returns are accepted within 30 days. View Policy Here. *Exclusions may apply

Price Match Guarantee at OffGrid Lux

At OffGrid Lux, we're committed to offering you the best prices online. That's why we have a Price Match Guarantee in place. If you find a lower price for the same product elsewhere, we'll match or beat it to ensure you get the best value.

For full details on our Price Match Guarantee, including eligibility criteria and how to request a price match, please click here to view our complete policy.

Shipping & Order Policy at OffGrid Lux

When you place an order, we confirm stock availability before charging your card. Orders typically process within 1-2 business days, and shipping is fast—most orders arrive within 4-7 days. We use reliable third-party carriers and provide tracking information promptly.

For more details, click here to view our full Shipping Policy.

Refunds & Returns at OffGrid Lux

We're committed to your happiness with every purchase. Need assistance? Just reach out. You have 30 days from delivery to return items in their original condition. We process refunds promptly, usually within 3 business days of receiving your return.

For more info, check out our full Returns & Refunds Policy here.

SimpliPhi SPHI-ESS-30-18 – 29.88 kWh Energy Storage System with 6 × 4.9 kWh LFP Batteries, 18 kW Hybrid Inverter, EnergyTrak & AGS

The SimpliPhi SPHI-ESS-30-18 is a high-performance, modular energy storage solution designed for homes and businesses requiring dependable, large-scale backup or primary power. This system includes six 4.9 kWh Lithium Ferro Phosphate (LFP) batteries and three 6 kW hybrid inverters for a combined 29.88 kWh of storage capacity and 18 kW of continuous power output.

Supporting AC or DC coupling and compatible with solar, grid, or generator power, the SPHI-ESS-30-18 offers independent scaling of energy and power. The included EnergyTrak platform provides remote monitoring, fleet management, and over-the-air updates. Its IP65-rated design ensures durability for both indoor and outdoor installation in varied climates.


Key Features

29.88 kWh LFP Energy Storage

  • Six high-quality 4.9 kWh LFP batteries for a total of 29.88 kWh.

  • Expandable up to 72 batteries for 358.5 kWh total capacity.

  • 10,000+ cycles at 80% DoD for long-term value.

EnergyTrak Smart Control

  • Real-time monitoring via the EnergyTrak mobile app.

  • Quick 5-step commissioning process.

  • Remote configuration and automatic firmware updates to maintain peak performance.

18 kW Hybrid Inverter Array

  • Three 6 kW hybrid inverters with integrated MPPT.

  • Compatible with solar, grid, or generator power in AC or DC coupled setups.

  • <8 ms transfer time for uninterrupted power during grid outages.

  • LCD interface for system management.

  • Expandable to 54 kW total inverter capacity.

Advanced LFP Battery Technology

  • Cobalt-free Lithium Ferro Phosphate chemistry for superior safety.

  • Integrated Battery Management System (BMS) for optimized charging and battery protection.

  • 96% round-trip efficiency for maximum energy usage.

Built for Any Environment

  • IP65-rated for indoor or outdoor installation.

  • Wide operational temperature range: -4°F to 140°F (-20°C to 60°C).

SimpliPHI 6 kW Inverter
Hybrid Inverter with integrated MPPT works seamlessly with the SimpliPHI 4.9 Battery, EnergyTrak, and Mobile App to deliver the most efficient, scalable, easy-to-use backup or primary power system available for homes and businesses.

  • Multiple Energy Sources - Designed to pair with solar, grid or generator in either AC or DC coupled configurations
  • Versatile - On the grid or off, with or without batteries
  • Scalable - Add up to 9 inverters for increased load support for a total of 54 kW
  • Seamless Transition - Less than 8 millisecond switchover time protects sensitive electronics and minimizes downtime
  • Digital interface - Easy programming and monitoring of primary system functions on the LCD screen
  • EnergyTrak Enabled - Remote monitoring and quick 5-step commissioning through EnergyTrak mobile app
  • IP 65 - rated for indoor or outdoor installations
  • Warranty - Up to 10-year limited warranty*
  • Product Brochure | Download
  • Installation Manual | Download
  • Specification Sheet | Download

EnergyTrak Control System
Provides advanced system monitoring through a sophisticated mobile app for smartphones or tablets, delivering real-time status and updates with intuitive control over the entire SimpliPHI Energy Storage System.

  • Simple, Smart, and Reliable - EnergyTrak offers an ever-improving platform to maximize value over the life of the system
  • Streamlined - 5-step commissioning for fast, frustration-free setup from a mobile device
  • Fleet Management - Visibility into customer installations to maximize system uptime
  • Remote Re-configuration - Minimizes the need for site visits on commissioned systems
  • Over-the-Air Updates - Automatically ensures systems and apps are secure and code-compliant with the latest features
  • Connectivity - Wi-Fi, ethernet, and Bluetooth for simple, dynamic communication
  • Product Brochure | Download
  • Installation Manual | Download

SimpliPHI 4.9 Battery
Leveraging over a decade of battery expertise using Lithium Ferro Phosphate (LFP) chemistry, the SimpliPHI 4.9 Battery delivers efficient, reliable, and safe advanced-level power storage.

  • Scalable - Up to 72 batteries with a total capacity of 358.5 kWh
  • Closed-Loop Communications - Seamlessly integrate with other system components to streamline programming and ensure peak performance
  • Battery Management System (BMS) - Proprietary state-of-the-art BMS protects the battery, creates additional safety, and extends cycle life
  • Long Lifespan - 10,000 cycles at 80% DoD
  • Maximum Energy Throughput - 34.9 MWh with 96% round trip efficiency increases the value of your storage investment over the life of the battery
  • Retained Capacity - 80% remaining capacity after 10 years of use
  • Safety-tested - Lithium Ferro Phosphate (LFP) chemistry is industry proven to reduce thermal runaway and fire propagation in residential and commercial installations
  • IP 65 - Rated for indoor or outdoor use
  • Warranty - 10-year limited warranty*
  • Product Brochure | Download
  • Installation Manual | Download

ESS Series Comparison

Model Batteries Total Capacity (kWh) Total Power (kW) Inverters (6 kW) Includes AGS
SPHI-ESS-10-6 2 × 4.98 kWh 9.96 6 1 × 6 kW Yes
SPHI-ESS-15-6 3 × 4.98 kWh 14.94 6 1 × 6 kW Yes
SPHI-ESS-20-6 4 × 4.98 kWh 19.92 6 1 × 6 kW Yes
SPHI-ESS-25-6 5 × 4.98 kWh 24.90 6 1 × 6 kW Yes
SPHI-ESS-20-12 4 × 4.98 kWh 19.92 12 2 × 6 kW Yes
SPHI-ESS-25-12 5 × 4.98 kWh 24.90 12 2 × 6 kW Yes
SPHI-ESS-30-12 6 × 4.98 kWh 29.88 12 2 × 6 kW Yes
SPHI-ESS-30-18 6 × 4.98 kWh 29.88 18 3 × 6 kW Yes
SPHI-ESS-40-18 8 × 4.98 kWh 39.84 18 3 × 6 kW Yes

 

    Free Shipping & No Tax to the United States

    Enjoy Free Shipping on Orders Over $200. No Sales Tax (Excludes WY).

    in stock and ready to ship

    Shop High-Quality Items in Stock
    Get Free 30-Day Returns if Unsatisfied.

    Guaranteed Lowest Prices

    Rest assured, we offer the lowest prices available. Explore our Price Match Policy for unbeatable savings.

    Excellent Customer Service

    Questions? Give us a call +1(307) 248-722

    Customer Reviews

    Be the first to write a review
    0%
    (0)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    0%
    (0)

    Compare products

    {"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

    Select first item to compare

    Select second item to compare

    Select third item to compare

    Compare
    Clicky