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Sigenergy Sigenstor EC 6.0 kW SP with 2 x 9.0 kWh Battery

SIG-EC-6.0-SP-BAT-20.0
£5,809.95 ex VAT £6,971.94 inc VAT

How many batteries do you need?

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Store Your SolarUse free power after dark
Long Cycle LifeThousands of charge cycles
Managed & ProtectedBuilt-in battery management system
Technical Specifications
Battery TypeLiFePO4
Nominal Energy18.08 kWh
Depth of Discharge100 %
IP RatingIP66
Operating Temperature-20 °C to +55 °C

Sigenergy Sigenstor EC 6.0 kW SP with 2 x 9.0 kWh Battery

Sigenergy · SigenStor EC and Sigen Battery package

Sigenergy Sigenstor EC 6.0 kW SP with 2 x 9.0 kWh Battery

Sigenergy SigenStor EC and Sigen Battery package — Controller, battery, mounting kit and power sensor as one line.

A storage package is the parts of a system bought as one line rather than six: the inverter or controller, the battery, and the pieces that join them. The Package Contents block on this page is the definitive list of what ships.

Usable capacity
17.52 kWhWhat you can actually draw
Nominal capacity
18.08 kWhRated cell capacity
Architecture
SigenStor towerThe inverter side it belongs to
Continuous power
6.0 kW from the controllerCharge and discharge
Chemistry
LiFePO4Cell type
Depth of discharge
100 %How much of it is usable
Important

Please read before ordering

This part is made up of the following items:
2 x SIG-STOR-BAT-10.0 Sigenergy Sigenstor Battery 9.04 kWh with LED
1 x SIG-STOR-EC-6.0-SP Sigenergy Sigenstor Energy Controller 6.0 kW Single Phase
1 x SIG-STOR-GM-KIT-ALF Sigenergy Sigenstor Installation kit for Ground-Mount with Adjustable Levelers Feet
1 x SIG-SENSOR-SP-CT-100 Sigenergy Power Sensor Single Phase External CT
Overview

About the Sigenergy SigenStor EC and Sigen Battery package

SigenStor is a tower rather than a wall box: the Energy Controller sits on top and the battery modules stack beneath it, on the ground mount kit that is in this package. The power sensor that measures the house is included too, which is the part most often forgotten when these are quoted piece by piece.

The battery is rated at a genuine 100 % depth of discharge with 314 Ah cells and a 10,000 cycle life, and the whole column is IP66 and convection cooled with no fans.

Inverter compatibility

Which inverter will run this battery?

This is a complete SigenStor tower: the Energy Controller, the battery modules under it, the mounting kit and the power sensor.

Everything in this package is matched: the Energy Controller, the SigenStor BAT modules and the power sensor are one system and are commissioned together. The stack can grow to six modules on the same controller later, and modules may be mixed old and new because each one carries its own optimiser.

For the installer

Stack rules, cabling and what else the job needs

The details that decide whether this battery suits the system:

  • The controller takes one to six battery modules. This package is the starting stack; more modules can be added later and mixed with these.
  • Sigenergy rate these modules at 100 % depth of discharge, and the usable figure they publish is about 97 % of the total — 5.84 kWh of 6.02, or 8.76 kWh of 9.04. Design to the usable figure.
  • The mounting kit in the package is the ground-mount version with adjustable levelling feet. Wall mounting uses a different kit.
  • The single-phase power sensor with an external CT is included.
  • Battery window on a single-phase controller is 300 – 600 V.
  • For a break-free backup output the system also needs a Sigen Energy Gateway, which is not part of this package.
  • Recharge the battery within seven days of a full discharge, per Sigenergy's own instruction.
Applications

Where this battery earns its place

The SigenStor EC and Sigen Battery package is specified most often for these jobs.

Solar self-consumptionController and battery matched and warranted.
First-time storage installsOne line instead of six.
Systems that will growUp to six modules on the same controller.
Outdoor installationIP66, no fans.
Time-of-use tariffs100 % depth of discharge.
Tight plant spacesOne column, 767 mm wide.
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 module Sigenergy call the 10.0 holds 9.04 kWh, of which 8.76 kWh is usable. The capacity figures on this page are the datasheet's.
  • Recharge the battery within seven days of a full discharge. That is Sigenergy's instruction for keeping the pack healthy, not a suggestion.
Technical specification

Sigenergy EC 6.0 SP + 20.0 technical data

This product
Nominal capacity18.08 kWh
Usable capacity17.52 kWh
Modules in this product2 × 9.04 kWh modules with a 6.0 kW single-phase Energy Controller
Continuous charge / discharge power6.0 kW from the controller
Depth of discharge100 %
Common to the range
Cell chemistryLiFePO4
Cell capacity314 Ah
Cycle life10,000
Modules per controller1 to 6
Battery window, single phase controller300 – 600 V
Ingress protectionIP66
CoolingNatural convection
Operating temperature range−20 °C to +55 °C
InstallationFloor standing, on the ground-mount kit included
CommunicationCAN
Compliance and warranty
CertificationIEC/EN 60730-1, UN 38.3, IEC/EN 62619, IEC/EN 63056, IEC/EN 62477
WarrantySee the warranty document attached to this listing
Specification sourceSigen Energy Controller and Sigen Battery 6.0 / 10.0 datasheets
Frequently asked questions

Questions we get asked about this inverter

What exactly is in the box?

The Package Contents block above this text is the definitive list. In short: the Energy Controller, the battery module or modules, the ground-mount installation kit and the single-phase power sensor.

Can I add more battery later?

Yes, up to six modules on the same controller, and they can be mixed with the ones in this package because each module has its own optimiser.

Does it give me backup power?

The controller has a backup output, but the 0 ms break-free figure Sigenergy quote needs a Sigen Energy Gateway as well, which is not in this package. Ask us and we will price it.

Is the 10.0 kWh module really 10 kWh?

It is 9.04 kWh total and 8.76 kWh usable. The 6.0 module is 6.02 kWh total and 5.84 kWh usable. Those are Sigenergy's own figures and they are the ones on this page.

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 battery range, our hybrid inverters and our solar panels, or email sales@clearraysolar.com if you would like us to check a battery and inverter pairing before you order.

IP66 RatedBuilt for UK weather conditions
Have questions?

Usable energy is the nominal capacity multiplied by the depth of discharge, and both figures are in the Technical Specifications. Most current lithium batteries allow 90% or more.

It needs to appear on your inverter manufacturer's approved battery list and the voltage ranges have to match. Send us your inverter model and we'll confirm compatibility before you order.

Most systems stack in modules up to a maximum number of units per installation, given in the datasheet. Keep to the same model, and buy the full stack together where budget allows.

Only where the IP rating and operating temperature range allow it - both are in the Technical Specifications. Cold reduces usable capacity, so a garage or utility space is usually the better location.

Yes, where the inverter supports timed or forced charging. Paired with a time-of-use tariff this is often the quickest route to a shorter payback.

Warranty terms, and the throughput or cycle count they are based on, are listed under the Warranty tab and in the manufacturer documentation.

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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.