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Sigenergy M1 125kW Hybrid Inverter with SigenStack 252kWh (21x12kWh)

SIG-125M1-STACK-252
£52,952.35 ex VAT £63,542.82 inc VAT

How many inverters do you need?

Secure Checkout 14-Day Returns Tracked Delivery
High Conversion EfficiencyMore of your solar reaches the home
MPPT TrackingMaximises yield in changing light
Grid CompliantMeets UK G98 / G99 requirements
Technical Specifications
Rated Power (Pmax)125,000 W
Battery TypeLiFePO4
Nominal Energy253.26 kWh
Depth of Discharge100 %
IP RatingIP66
Operating Temperature-20 °C to +55 °C

Sigenergy M1 125kW Hybrid Inverter with SigenStack 252kWh (21x12kWh)

Sigenergy M1 125kW Hybrid Inverter with SigenStack 252kWh (21x12kWh)
Part No: SIG-125M1-STACK-252
Storage Systems - Storage Package
This part is made up of the following items:
21 x SIG-STACK-BAT-12.0 Sigenergy SigenStack Battery 12.0 kWh
1 x SIG-125M1-HYA Sigenergy M1 125kW Hybrid Inverter HYA
1 x SIG-STACK-BC-M2-0.5C-BST Sigenergy SigenStack Battery Controller M2-0.5C BOOST
2 x SIG-STACK-BASE-SUB-0.5C Sigenergy SigenStack SUB Base Unit 0.5C
1 x SIG-STACK-BASE-MAIN-0.5C Sigenergy SigenStack MAIN Base Unit 0.5C
2 x SIG-STACK-COVER Sigenergy SigenStack Cover
1 x SIG-COM-MOD Sigenergy 4G Communication Module

Commercial energy storage solutions combining Sigenergy M1 three-phase hybrid inverters (50kW to 125kW) with modular SigenStack lithium battery systems from 48kWh to 252kWh. Designed for commercial and industrial applications, this package provide scalable high-voltage storage, advanced energy management, and seamless PV integration to maximise self-consumption, enable peak-shaving, and support backup power requirements.

Each system includes stackable 12kWh SigenStack battery modules with MAIN base architecture and M2 BOOST battery control, delivering flexible expansion and simplified installation. With intelligent monitoring capability, high system efficiency, and robust IP-rated design, the range is ideal for medium to large C&I projects requiring reliable, future-proof energy storage performance

IP66 RatedBuilt for UK weather conditions

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Everything you need in one place.

  • Inverters
  • Batteries
  • Mounting Systems
  • Cabling & Accessories
  • Protection Devices
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Shipping & Returns

Delivery times vary by region:

  • UK — 1-2 business days
  • Highlands & Islands — 1-2 business days

Returns accepted within 14 days of delivery for unused items in original packaging.