High-density modularity
Each block supports up to 21 BAT 12 modules and provides 253.26 kWh nominal.
SIGENERGY FOR COMMERCIAL AND INDUSTRIAL PROJECTS
SigenStack for C&I installations: modular storage
A commercial and technical guide for installers and engineering companies that need to define power, capacity and architecture before requesting a SigenStack quotation.
Request SigenStack sizingREFERENCE C&I BESS ARCHITECTURE
Sigenergy SigenStack · 1.520 kWh / 750 kW
High-density C&I reference made up of six 253.26 kWh blocks with 125 kW hybrid PCS. The configuration reaches 1,520 kWh and 750 kW nominal.
Nominal capacity1.520 kWh
Nominal power750 kW
Blocks6 × 253.26 kWh
ArchitectureC&I hybrid · modular
OperationLFP · 0.5C
ProtectionIP66 · outdoor
What this architecture delivers
Pack-level safety
IP66 protection, aerosol suppression, smoke sensor and thermal control integrated according to the product family.
C&I scaling
Six blocks with 125 kW PCS allow capacity and power to grow by subsystem.
Integrated control
Gateway, metering, EMS and protocols are selected according to grid, backup and plant strategy.
Reference configuration
Indicative breakdown of the system shown. Final references, protection and accessories are validated against the single-line diagram and real project data.
| Quantity | Equipment or material | Function and criterion | Scope |
|---|---|---|---|
| 126 | Sigenergy SigenStack BAT 12 modules · 12.06 kWh | 21 modules per block; 126 × 12.06 kWh = 1,519.56 kWh, rounded to 1,520 kWh. | Included |
| 6 | SigenStack battery controllers compatible with 0.5C | One per block for battery management, protection and communications. | Included |
| 6 | SigenStack base assemblies and cable kits | One configuration per block; the variant depends on linear or back-to-back layout. | Engineering dependent |
| 6 | SigenStack covers | One per block to protect the modular assembly. | Included |
| 6 | 125 kW Sigenergy C&I hybrid PCS | One per block; model, version and current documentation are validated before quotation. | Included |
| Engineering dependent | Gateway, metering, switchgear, protection and EMS | Sized against the single-line diagram, grid, critical loads and control strategy. | Engineering dependent |
| Optional | Renlogger-C / supervision integration | Option subject to protocol validation for zero export, time shifting and peak shaving. | Optional |
This is a commercial and technical reference, not a closed BOM for purchasing or construction. The final BOQ may vary because of grid, regulations, protection, cabling, EMS, communications, works and engineering requirements.
Before finalising the BOM
We need to validate the following data to turn this reference into an executable quotation.
Hourly or 15-minute load curve and contracted power.
Single-line diagram, voltage, phases, transformer and point of connection.
Operating goal: self-consumption, peak shaving, backup or microgrid.
Available space, clearances, access and environmental conditions.
Critical loads, autonomy, starting peaks and control strategy.
Reference source: Plug and Play Energy C&I BESS Portfolio and technical components verified in Odoo. · 2026-09-19
When does SigenStack fit a C&I project?
Evaluate the system when the goal is to increase self-consumption, shift energy, limit peaks, back up critical loads or integrate a microgrid. The solution is not selected by kWh alone: power, load profile, phases, grid, generator and control strategy also matter.
- Self-consumption with storage and surplus management
- Peak shaving and demand control
- Critical-load backup when supported by the architecture
- Integration of PV, grid and generator in compatible projects
Components that must be validated in the design
The professional catalogue includes SigenStack BAT 12 modules, battery controllers, bases, covers, Sigen PV hybrid inverters and Gateways for C&I architectures. Exact configuration, compatibility and component quantities are verified for each project.
- SigenStack BAT 12: 12 kWh battery module
- Battery Controller and required charge/discharge rate
- Hybrid inverter, Gateway and protection according to the single-line diagram
- Communications, EMS, metering and commissioning
Minimum data required for a proposal
A useful quotation requires real project data. A monthly bill alone is not always enough to define the best power or capacity.
- Hourly or 15-minute load curve
- Contracted power, maximum demand and penalties
- Existing or planned PV production
- Goal: savings, backup, zero export or microgrid
- Single-line diagram, voltage, phases, space and environmental conditions
Reference equipment in the professional catalogue
Catalogue availability does not replace project compatibility and sizing validation.
Frequently asked questions
What is the difference between kW and kWh in SigenStack?
kW indicates the instantaneous power the system can deliver or absorb; kWh indicates stored energy. Both values must be sized against the load profile and operating goal.
Can SigenStack work with an existing PV installation?
It depends on the architecture, inverters, metering point and goal. Review the single-line diagram and existing-system compatibility before defining an AC- or DC-coupled solution.
Does SigenStack support industrial backup?
It can form part of compatible backup architectures, but critical loads, starting power, autonomy, switching, protection and Gateway must be defined. The entire installation does not necessarily need backup.
What do I receive when requesting a study?
An indicative proposal covering architecture, power, capacity, main equipment and data still to be validated. The final quotation depends on the project’s technical and commercial information.
Turn project data into a comparable proposal
We work with installers and engineering companies. Send the available information and we will identify what is still needed for sizing.
Request SigenStack sizingAuthor: Arturo Andrés · Technical review: Plug & Play Energy storage team · Updated: 16/08/2026
Main source: Official Sigenergy documentation and support. The final architecture must be validated using current documentation, the single-line diagram and real project data.
Delivered SigenStack configuration
See a real 504 kWh and 300 kW supply for a C&I project.
View real case