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Sigenergy Sigenstor Energy Controller 8.0 kW Three Phase
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Sigenergy Sigenstor Energy Controller 8.0 kW Three Phase

SIG-STOR-EC-8.0-TP
£1,484.31 ex VAT £1,781.17 inc VAT

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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)8,000 W
Module Efficiency98.3 %
Battery Voltage600 - 900 V
MPPT Quantity3
Min MPPT Voltage160 V
Max MPPT Voltage1,000 V
Max DC Power12,800 W
Max AC Power (5 min)8,800 VA
Max DC Current16 A
Max DC Inputs3
Height300 mm
Width700 mm
Depth260 mm
Weight36 kg
Operating Temperature-30 °C to +60 °C
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Sigenergy Sigenstor Energy Controller 8.0 kW Three Phase

Sigenergy · SigenStor Energy Controller, three phase

Sigenergy Sigenstor Energy Controller 8.0 kW Three Phase

Sigenergy SigenStor Energy Controller, three phase — Unbalanced three-phase output, four MPP trackers and 98.4 % peak efficiency.

A hybrid inverter does three jobs a string inverter cannot. It converts solar DC to AC; it charges and discharges a battery on the DC side, which avoids the double conversion an AC-coupled battery pays for; and when the grid fails it islands the house and keeps the backup output alive from the battery.

Rated AC output
8,000 WThree phase on-grid output
Backup output
8,000 WContinuous EPS power in a grid outage
Maximum PV input
12,800 WArray size this inverter accepts
MPP trackers
3Independent roof planes
Peak efficiency
98.3 %Conversion efficiency at best
Overview

About the Sigenergy SigenStor Energy Controller, three phase

SigenStor is not a wall box with a battery beside it. It is a tower: the Energy Controller on top, one to six battery modules under it, and optionally a DC EV charger in the same stack — solar inverter, battery PCS, battery pack, EV DC charger and EMS in one product. This listing is the Energy Controller, the module that does the converting and the managing.

The three-phase controller runs from 5 kW to 30 kW on a 600 – 900 V battery, with unbalanced output so it can follow a real house or unit rather than a balanced test load. Peak efficiency reaches 98.4 %, and the off-grid peak is 150 % of rated power for ten seconds.

Battery compatibility

Which battery does this inverter take?

This inverter takes SigenStor BAT series.

This model has a battery voltage window of 600 – 900 V.

This rule applies to the SigenStor Energy Controller (all SP, TP and TPLV models).

1 to 6 modules per controller. Battery module voltage range 300 – 600 V on single phase and three phase low voltage; 600 – 900 V on the three phase controller.

What we stock that fits this inverter:

Sigenergy Sigenstor Battery 6.0 kWh with LEDThe 6 kWh module.
Sigenergy Sigenstor Battery 9.04 kWh with LEDThe larger module.
Sigenergy Sigenstor Batteries 18.0 kWh with LED (3 x 6.0 kWh)A three-module stack.
The single-phase controller takes a 300 – 600 V stack and the three-phase controller a 600 – 900 V one. Both are SigenStor BAT modules, but a stack built for one controller is the wrong voltage for the other, so size it against the controller in front of you. Ask us if you are not certain.
For the installer

String design, battery limits and what is in the box

The details that decide whether this unit suits the job:

  • Battery is the SigenStor BAT series, one to six modules, 600 – 900 V on this platform. The single-phase controller uses 300 – 600 V, so the two stacks are not interchangeable.
  • MPP trackers by model: two on the 5.0 and 6.0 kW, three from 8.0 to 12.0 kW and four from 15.0 kW upwards, one string each at 16 A and 20 A short circuit.
  • 1,100 V maximum DC, 600 V nominal, 180 V start-up, 160 – 1,000 V MPPT window.
  • Maximum PV power runs from 8 kW on the 5.0 kW to 48 kW on the 30.0 kW — a 1.6 DC/AC ratio across the range.
  • The 0 ms backup figure is the load-side disruption time and it needs the Sigen Energy Gateway fitted alongside the Controller and the battery, with the Controller rated above the total house load. Without the Gateway there is still a backup output, but not a break-free one.
  • Off-grid peak is 150 % of rated power for 10 seconds; unbalanced three-phase output is supported.
  • 700 × 300 × 260 mm and 36 kg for every model, smart air cooled, IP66.
  • Sigenergy's footnote says the 30.0 kW three-phase model is only available in specific regions. We stock it — ask us to confirm the position for your installation.
Applications

Where this hybrid earns its place

The SigenStor Energy Controller, three phase is specified most often for these jobs.

Three-phase homes and small units5 kW to 30 kW on one platform.
Unbalanced loadsUnbalanced three-phase output as standard.
Backup that must not blink0 ms load-side disruption with the Sigen Energy Gateway.
Large arraysUp to 48 kW of PV on the 30 kW controller.
Sites adding EV DC chargingThe charging module stacks into the same tower.
Outdoor installationIP66 system rating.
Before you order

Things worth knowing about this listing

These notes come from us and from the manufacturer, and they are the ones that most often cause a problem after delivery:
  • The 0 ms backup figure is the load-side disruption time and it needs the Sigen Energy Gateway fitted with the controller and the battery, with the controller rated above the total house load. Without a gateway there is still a backup output, but not a break-free one.
Technical specification

Sigenergy 8.0 TP technical data

This model
Maximum PV input power12,800 W
Number of MPP trackers3
Strings per MPP tracker1
Output, backup and performance
Rated AC output power8,000 W
Maximum apparent AC power8,800 VA
Rated AC output current12.2 A
Maximum AC output current13.4 A
Backup (EPS) continuous power8,000 W
Backup (EPS) peak power12,000 W for 10 s
Maximum efficiency98.3 %
European efficiency97.1 %
Common to the range
Maximum DC input voltage1,100 V
Nominal DC input voltage600 V
Start-up voltage180 V
MPPT voltage range160 – 1,000 V
Number of PV strings per MPPT1
Maximum input current per MPPT16 A
Maximum short circuit current per MPPT20 A
Nominal output voltage380 / 400 V, 3W+N+PE
Nominal grid frequency50 / 60 Hz
Power factor0.8 leading to 0.8 lagging
Total current harmonic distortionTHDi <2 %
Backup total voltage harmonic distortionTHDv <2 %
Disruption time of backup switch0 ms, with the Sigen Energy Gateway
Battery module modelsSigenStor BAT series
Number of modules per controller1 to 6
Battery module voltage range600 – 900 V
Safety protection featuresDC reverse polarity protection, insulation monitoring, residual current monitoring, arc fault circuit interrupter (optional on certain models), AC overcurrent, overvoltage and short circuit protection, Type II DC/AC surge protection, anti-islanding protection
Dimensions (W × H × D)700 × 300 × 260 mm
Weight36 kg
Storage temperature range−40 °C to +70 °C
Operating temperature range−30 °C to +60 °C
Relative humidity range0 – 100 %
Maximum operating altitude4,000 m
CoolingSmart air cooling
System ingress protection ratingIP66
CommunicationWLAN / fast Ethernet / RS485 / Sigen CommMod (4G/3G/2G)
Compliance and warranty
Grid connection standardsSee the certificates attached to this listing; ask us for the current G99 certificate for your model and firmware
Safety and EMCIEC/EN 62109-1, IEC/EN 62109-2, IEC/EN 61000-6-1, IEC/EN 61000-6-2
WarrantySee the warranty document attached to this listing
Specification sourceSigen Energy Controller 5.0-30.0 kW three phase datasheet
Goes with this

Ordered with this inverter more often than anything else

A hybrid is the middle of a system, not the whole of it. These are the parts our customers add most often:

Sigenergy Gateway C60-2 Three Phase 60kWSigen Gateway C60-2 three phase. The 0 ms backup figure needs a gateway fitted alongside the controller and battery.
Sigenergy Power Sensor Three Phase External CT DHThree-phase power sensor with an external CT.
Sigenergy 4G Communication ModuleSigen CommMod 4G module, where there is no broadband at the inverter.
Frequently asked questions

Questions we get asked about this inverter

Which battery does it take?

SigenStor BAT modules, one to six, on a 600 – 900 V window — not the 300 – 600 V stack the single-phase controller uses. Check which controller you are ordering for.

Can it run an unbalanced load?

Yes. Unbalanced three-phase output is one of the platform's headline features, which matters in a house where one phase carries much more than the others.

Is the 30 kW available here?

Sigenergy list it as available in specific regions only. We hold stock; ask us and we will confirm the position for your installation.

What is the peak backup output?

150 % of rated power for ten seconds — 22,500 W on the 15 kW, 36,000 W on the 30 kW.

ClearRay Solar

Documents, advice and trade pricing

Every datasheet, certificate, installation manual and warranty document we hold for this product is in the Documents tab below. See the rest of our hybrid inverter range, our batteries and our solar panels, or email sales@clearraysolar.com if you would like us to check a battery pairing or a string design before you order.

High Efficiency 98.3 %More power from the same roof space

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Documents & Certificates
Brochure Sigenergy Home Energy Solution Data Sheet Sigenergy Sigenstor Battery 5 and 8 EN Data Sheet Sigenergy Sigenstor CommMod EN Data Sheet Sigenergy Sigenstor Energy Controller EN
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.