Tigo EI 11.4kW Energy Storage Hybrid Inverter | TSI-11.4K-US Ethernet/WiFi
$2,459.49
Sale price
$2,459.49
Regular price
$2,699.19
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Most orders ship within 1-2 business days. We stand behind every product — contact us if you're not satisfied.
Shipping
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Manufacturing
Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.
Compatibility & What's in the Box
Check the product description for included accessories and device compatibility details.
Shipping
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Manufacturing
Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.
Key Specifications
Refer to the product description for full specs including wattage, capacity, dimensions, and compatibility.
Shipping
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Manufacturing
Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.
Tigo EI 11.4kW Energy Storage Hybrid Inverter | TSI-11.4K-US Ethernet/WiFi
$2,459.49
Sale price
$2,459.49
Regular price
$2,699.19
Tigo Energy TSI-11.4K-US EI Hybrid Solar Inverter - WiFi/Ethernet
Product Overview
The Tigo Energy TSI-11.4K-US EI Hybrid Inverter is the intelligent core of the Tigo Energy Intelligence (EI) ecosystem. Designed for modern residential and light commercial solar installations, this 11.4kW single-phase hybrid inverter seamlessly manages solar production, energy consumption, and battery storage when paired with Tigo TSB batteries.
With industry-leading DC oversizing (up to 200%), integrated revenue-grade metering, and native compatibility with Tigo TS4 MLPE, the TSI-11.4K-US delivers exceptional flexibility, safety, and performance—all in a lightweight, NEMA 4X (IP65) enclosure built for indoor or outdoor installations.
Key Features & Benefits
- 11.4kW Hybrid Solar Inverter – Storage-ready for future battery expansion
- Up to 200% DC Oversizing – Maximize array design flexibility (2:1 DC/AC ratio)
- Multiple MPPTs (3–4) – Optimized energy harvest across complex roof layouts
- 50V Low Start-Up Voltage – Earlier and longer daily production
- Integrated Revenue-Grade Meter (RGM) – Accurate production and consumption tracking
- Module-Level Monitoring & Rapid Shutdown – When paired with Tigo TS4 MLPE
- Built-in Wi-Fi & Ethernet (optional cellular) – Always-connected energy intelligence
- Fast Commissioning – <10 minutes using the Tigo EI App
- Lightweight Design – Approx. 45 lbs for easier installation
- NEMA 4X / IP65 Rated – Suitable for indoor or outdoor use
- Integrated CCA & RSS – Safety and compliance built in
- Emergency Stop (E-Stop) Button – Enhanced system safety
- Tigo Access Point (TAP) Compatible
Technical Specifications
- AC Output Power: 11.4 kW
- Phase: Single-Phase
- Inverter Type: Transformerless String Inverter
- DC/AC Ratio: Up to 2:1
- MPPTs: 3–4
- Starting Voltage: 50V
- Communications: Ethernet, Wi-Fi, Optional Cellular
- Enclosure Rating: NEMA 4X (IP65)
- Certifications: UL 1741 (CEC Listed)
Battery & System Compatibility
- Compatible exclusively with Tigo TSB Batteries
- Supports 1, 2, or 4 batteries per inverter
- One inverter per battery bank
- Works with or without optimizers or batteries
- Parallel inverter operation supported (battery limits apply)
Grid-Tied, Hybrid & Backup Ready
- Net Metering Compatible
- Anti-Islanding Protection – No export during grid outages
- Backup Power Capable when paired with Tigo ATS + Tigo Battery
- Supports off-grid configurations (internet connection required for full warranty)
Frequently Asked Questions
-
Is this inverter compatible with net metering?
Yes. Net metering is utility-tracked and fully supported, with monitoring available via the Tigo portal. -
Can it operate during a grid outage?
Yes, when paired with a Tigo ATS and Tigo Lithium Battery. -
Do I need Tigo optimizers to use this inverter?
No. The inverter works with or without optimizers. Without optimizers, monitoring is at the string level. -
Can I use third-party batteries?
No. Only Tigo TSB batteries are supported. -
Is rapid shutdown included?
Yes, when paired with Tigo TS4 MLPE.
Ideal For
- Residential solar + storage systems
- Homeowners planning future battery upgrades
- Installers seeking fast commissioning and flexible design
- Projects requiring module-level monitoring and rapid shutdown compliance
Why Choose Tigo Energy?
Tigo is a global leader in solar MLPE, monitoring, and energy intelligence, trusted by installers worldwide for reliability, safety, and system-level optimization.
EI Inverter 11.4kW Spec Sheet: Download
TSB-10-US Battery Quick Start Guide: Download
EI Inverter Quick Start Guide: Download
EI Inverter/Battery Manual: Download