Home » Sigenergy SigenStor Energy Controller Single Phase | EC SP | 3.6–12kW Hybrid Solar Inverter All Variants
White hybrid inverter with 'Sige Energy' branding on a white background
Sigen Energy Controller on a light gray background
White hybrid inverter with 'Sige Energy' branding on a white background
Sigen Energy Controller on a light gray background
SKU: SIG-STOR-EC-3.6-SP
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Sigenergy SigenStor Energy Controller Single Phase | EC SP | 3.6–12kW Hybrid Solar Inverter All Variants

Sigenergy
£1,130.00 Inc. VAT £941.67 Exc. VAT
Power
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Single Phase Hybrid Inverter On & Off-Grid IP66 G98 / G99 Certified 10-Year Warranty

The Sigenergy SigenStor Energy Controller (EC) is the core single-phase hybrid inverter of the SigenStor 5-in-One home energy storage system. It integrates a solar inverter, battery power conversion system (PCS), and intelligent Energy Management System (EMS) in a single IP66-rated unit. Available in six power ratings from 3.6 kW to 12.0 kW, the EC manages solar generation, battery storage, grid interaction, and backup power within the SigenStor ecosystem. The lower-power 3.6–6.0 kW range features two MPPT inputs and suits most residential rooftop arrays; the 8.0–12.0 kW models add a third or fourth MPPT for larger or multi-orientation arrays. All models support a DC/AC ratio of up to 2:1, on- and off-grid operation, multi-source black start, and DC ground-fault protection.

  • EMS inside for precise solar, battery, grid and load management
  • DC ground-fault protection — safety standard for UK Part P compliance
  • Multi-source black start — restores power from solar, battery or generator
  • On & off-grid capability — seamless transition, no UPS gap
  • DC/AC ratio up to 2:1 — supports oversized PV arrays for improved yield
  • IP66 rated — suitable for outdoor wall or ground-mounted installation
  • Compatible with SigenStor EV DC Charging Module for V2X/V2G capability
  • mySigen App — AI-powered monitoring, scheduling and remote control (iOS & Android)
  • G98 and G99 DNO notification certificates available on request — please contact us by email
  • 10-year product warranty
ℹ️ The 3.6–6.0 kW models share the same physical unit; output power is software-configured. The 8.0–12.0 kW models are a separate, larger physical platform with 3 or 4 MPPTs. Confirm the correct power tier before ordering.
All Variants — SKU & Manufacturer MPN
Power SKU Manufacturer MPN MPPT Notes
3.6 kW SIG-STOR-EC-3.6-SP SigenStor EC 3.6 SP 2 3.0–6.0 kW platform · DC ground-fault protection
5.0 kW SIG-STOR-EC-5.0-SP SigenStor EC 5.0 SP 2 3.0–6.0 kW platform · same unit as 3.6 / 6.0
6.0 kW SIG-STOR-EC-6.0-SP SigenStor EC 6.0 SP 2 3.0–6.0 kW platform · most popular residential size
8.0 kW SIG-STOR-EC-8.0-SP SigenStor EC 8.0 SP 3 8.0–12.0 kW platform · larger arrays / light commercial
10.0 kW SIG-STOR-EC-10.0-SP SigenStor EC 10.0 SP 4 8.0–12.0 kW platform · 4 MPPT for complex rooftop layouts
12.0 kW SIG-STOR-EC-12.0-SP SigenStor EC 12.0 SP 4 8.0–12.0 kW platform · maximum single-phase output
Common Technical Specifications
AC Output Voltage 230V single phase
Max PV Input Voltage 600V DC
DC/AC Oversizing Ratio Up to 2:1
Max Efficiency 97.0–97.4% (model dependent)
Battery Compatibility SigenStor BAT series (1–6 modules per stack)
Grid Certifications G98 (≤3.68 kW), G99 (>3.68 kW) — certificates available on request
Protection Rating IP66
Operating Temperature −30°C to +60°C
Warranty 10 years
Monitoring mySigen App (AI-powered)
⚠️ UK DNO Notification: Models ≤3.68 kW require G98 notification. Models >3.68 kW require G99 application and approval before connection. G98 and G99 certificates are available on request — please contact us by email.
  • Type Hybrid Inverter
  • Vendor Sigenergy
  • SKU SIG-STOR-EC-3.6-SP
BTU & WATT Calculator
Room Dimensions
Room Type
Living Room
Bedroom
Kitchen
Bathroom
Conservatory
Hallway
Glazing Type
Single Glazed
Double Glazed
Triple Glazed
External Walls
0 Wall
1 Wall
2 Walls
3 Walls
4 Walls
Insulation Level
Poor
Average
Good (New Build)
Required Heating
0
Watts
0
BTUs

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