BESS-Market
Supplier Directory

The supplier market for BESS projects.

Filter by category and find vetted partners for every component of your project.

Sample data: the entries shown illustrate the platform structure and do not constitute binding offers.

Categories without listed partners are under construction.

Battery OEM

5

Manufacturers of battery energy storage systems.

CATL Energy Storage

Documents reviewed

World-leading manufacturer of LFP battery systems for grid-scale applications.

System sizes
10 MWh bis 5 GWh
Round-trip efficiency
≥ 87%
Warranty
15 Jahre / 8.000 Zyklen
Delivery time
6–9 Monate
IEC 62619IEC 62933UN 38.3

Sungrow Power Supply

Verified company

Integrated provider of PV inverters and energy storage systems.

System sizes
5 MWh bis 3 GWh
Round-trip efficiency
≥ 85%
Warranty
10 Jahre
Delivery time
4–7 Monate
IEC 62619IEC 62933CE

Fluence Energy

Documents reviewed

Global storage integrator with its own digital platform and large project portfolio.

System sizes
Individuell bis 1 GWh+
Round-trip efficiency
≥ 86%
Warranty
20 Jahre
Delivery time
9–12 Monate
IEC 62619IEC 62933ISO 9001

Wärtsilä Energy

Documents reviewed

Established Finnish system integrator with a strong focus on grid stability.

System sizes
10 MWh bis 500 MWh
Round-trip efficiency
≥ 88%
Warranty
15 Jahre
Delivery time
12–18 Monate
IEC 62619IEC 62933ISO 9001

BYD Energy Storage

Verified company

Pioneer of LFP blade battery technology for safe grid-scale storage.

System sizes
5 MWh bis 3 GWh
Round-trip efficiency
≥ 89%
Warranty
12 Jahre / 6.000 Zyklen
Delivery time
6–9 Monate
IEC 62619IEC 62933UN 38.3

System integrators

8

Complete systems combining storage, PCS and EMS.

CATL Energy Storage

Documents reviewed

World-leading manufacturer of LFP battery systems for grid-scale applications.

System sizes
10 MWh bis 5 GWh
Round-trip efficiency
≥ 87%
Warranty
15 Jahre / 8.000 Zyklen
Delivery time
6–9 Monate
IEC 62619IEC 62933UN 38.3

Sungrow Power Supply

Verified company

Integrated provider of PV inverters and energy storage systems.

System sizes
5 MWh bis 3 GWh
Round-trip efficiency
≥ 85%
Warranty
10 Jahre
Delivery time
4–7 Monate
IEC 62619IEC 62933CE

Fluence Energy

Documents reviewed

Global storage integrator with its own digital platform and large project portfolio.

System sizes
Individuell bis 1 GWh+
Round-trip efficiency
≥ 86%
Warranty
20 Jahre
Delivery time
9–12 Monate
IEC 62619IEC 62933ISO 9001

Wärtsilä Energy

Documents reviewed

Established Finnish system integrator with a strong focus on grid stability.

System sizes
10 MWh bis 500 MWh
Round-trip efficiency
≥ 88%
Warranty
15 Jahre
Delivery time
12–18 Monate
IEC 62619IEC 62933ISO 9001

Next Kraftwerke

Verified company

Leading virtual power plant operator and direct marketer in Germany.

System sizes
Round-trip efficiency
Warranty
Delivery time
ISO 27001

Siemens Energy

Verified company

German technology group with a comprehensive energy infrastructure portfolio.

System sizes
Individuell
Round-trip efficiency
Warranty
Delivery time
IEC 62619ISO 9001ISO 14001

BYD Energy Storage

Verified company

Pioneer of LFP blade battery technology for safe grid-scale storage.

System sizes
5 MWh bis 3 GWh
Round-trip efficiency
≥ 89%
Warranty
12 Jahre / 6.000 Zyklen
Delivery time
6–9 Monate
IEC 62619IEC 62933UN 38.3

SMA Solar Technology

Verified company

German inverter specialist with deep experience in battery systems.

System sizes
Round-trip efficiency
Warranty
Delivery time
IEC 62477CEVDE

PCS

5

Power conversion systems and inverters.

CATL Energy Storage

Documents reviewed

World-leading manufacturer of LFP battery systems for grid-scale applications.

System sizes
10 MWh bis 5 GWh
Round-trip efficiency
≥ 87%
Warranty
15 Jahre / 8.000 Zyklen
Delivery time
6–9 Monate
IEC 62619IEC 62933UN 38.3

Sungrow Power Supply

Verified company

Integrated provider of PV inverters and energy storage systems.

System sizes
5 MWh bis 3 GWh
Round-trip efficiency
≥ 85%
Warranty
10 Jahre
Delivery time
4–7 Monate
IEC 62619IEC 62933CE

Siemens Energy

Verified company

German technology group with a comprehensive energy infrastructure portfolio.

System sizes
Individuell
Round-trip efficiency
Warranty
Delivery time
IEC 62619ISO 9001ISO 14001

BYD Energy Storage

Verified company

Pioneer of LFP blade battery technology for safe grid-scale storage.

System sizes
5 MWh bis 3 GWh
Round-trip efficiency
≥ 89%
Warranty
12 Jahre / 6.000 Zyklen
Delivery time
6–9 Monate
IEC 62619IEC 62933UN 38.3

SMA Solar Technology

Verified company

German inverter specialist with deep experience in battery systems.

System sizes
Round-trip efficiency
Warranty
Delivery time
IEC 62477CEVDE

EMS

8

Energy management systems and controls.

CATL Energy Storage

Documents reviewed

World-leading manufacturer of LFP battery systems for grid-scale applications.

System sizes
10 MWh bis 5 GWh
Round-trip efficiency
≥ 87%
Warranty
15 Jahre / 8.000 Zyklen
Delivery time
6–9 Monate
IEC 62619IEC 62933UN 38.3

Sungrow Power Supply

Verified company

Integrated provider of PV inverters and energy storage systems.

System sizes
5 MWh bis 3 GWh
Round-trip efficiency
≥ 85%
Warranty
10 Jahre
Delivery time
4–7 Monate
IEC 62619IEC 62933CE

Fluence Energy

Documents reviewed

Global storage integrator with its own digital platform and large project portfolio.

System sizes
Individuell bis 1 GWh+
Round-trip efficiency
≥ 86%
Warranty
20 Jahre
Delivery time
9–12 Monate
IEC 62619IEC 62933ISO 9001

Wärtsilä Energy

Documents reviewed

Established Finnish system integrator with a strong focus on grid stability.

System sizes
10 MWh bis 500 MWh
Round-trip efficiency
≥ 88%
Warranty
15 Jahre
Delivery time
12–18 Monate
IEC 62619IEC 62933ISO 9001

Next Kraftwerke

Verified company

Leading virtual power plant operator and direct marketer in Germany.

System sizes
Round-trip efficiency
Warranty
Delivery time
ISO 27001

Siemens Energy

Verified company

German technology group with a comprehensive energy infrastructure portfolio.

System sizes
Individuell
Round-trip efficiency
Warranty
Delivery time
IEC 62619ISO 9001ISO 14001

BYD Energy Storage

Verified company

Pioneer of LFP blade battery technology for safe grid-scale storage.

System sizes
5 MWh bis 3 GWh
Round-trip efficiency
≥ 89%
Warranty
12 Jahre / 6.000 Zyklen
Delivery time
6–9 Monate
IEC 62619IEC 62933UN 38.3

SMA Solar Technology

Verified company

German inverter specialist with deep experience in battery systems.

System sizes
Round-trip efficiency
Warranty
Delivery time
IEC 62477CEVDE

Transformers

2

Transformers and grid connection equipment.

Siemens Energy

Verified company

German technology group with a comprehensive energy infrastructure portfolio.

System sizes
Individuell
Round-trip efficiency
Warranty
Delivery time
IEC 62619ISO 9001ISO 14001

SMA Solar Technology

Verified company

German inverter specialist with deep experience in battery systems.

System sizes
Round-trip efficiency
Warranty
Delivery time
IEC 62477CEVDE

MV/HV equipment

4

Medium- and high-voltage technology.

Wärtsilä Energy

Documents reviewed

Established Finnish system integrator with a strong focus on grid stability.

System sizes
10 MWh bis 500 MWh
Round-trip efficiency
≥ 88%
Warranty
15 Jahre
Delivery time
12–18 Monate
IEC 62619IEC 62933ISO 9001

Siemens Energy

Verified company

German technology group with a comprehensive energy infrastructure portfolio.

System sizes
Individuell
Round-trip efficiency
Warranty
Delivery time
IEC 62619ISO 9001ISO 14001

EPC Solar Plus GmbH

Listed

German EPC provider specialised in PV+storage projects.

System sizes
Round-trip efficiency
Warranty
Delivery time
VDE-AR-E 2510-50

SMA Solar Technology

Verified company

German inverter specialist with deep experience in battery systems.

System sizes
Round-trip efficiency
Warranty
Delivery time
IEC 62477CEVDE

EPC

4

Engineering, procurement and construction of turnkey plants.

Fluence Energy

Documents reviewed

Global storage integrator with its own digital platform and large project portfolio.

System sizes
Individuell bis 1 GWh+
Round-trip efficiency
≥ 86%
Warranty
20 Jahre
Delivery time
9–12 Monate
IEC 62619IEC 62933ISO 9001

Wärtsilä Energy

Documents reviewed

Established Finnish system integrator with a strong focus on grid stability.

System sizes
10 MWh bis 500 MWh
Round-trip efficiency
≥ 88%
Warranty
15 Jahre
Delivery time
12–18 Monate
IEC 62619IEC 62933ISO 9001

Siemens Energy

Verified company

German technology group with a comprehensive energy infrastructure portfolio.

System sizes
Individuell
Round-trip efficiency
Warranty
Delivery time
IEC 62619ISO 9001ISO 14001

EPC Solar Plus GmbH

Listed

German EPC provider specialised in PV+storage projects.

System sizes
Round-trip efficiency
Warranty
Delivery time
VDE-AR-E 2510-50

Fire protection

1

Fire protection concepts and systems.

EPC Solar Plus GmbH

Listed

German EPC provider specialised in PV+storage projects.

System sizes
Round-trip efficiency
Warranty
Delivery time
VDE-AR-E 2510-50

Optimizers & traders

1

Market access and dispatch optimisation.

Next Kraftwerke

Verified company

Leading virtual power plant operator and direct marketer in Germany.

System sizes
Round-trip efficiency
Warranty
Delivery time
ISO 27001

Insurance

1

Insurance solutions for BESS projects.

Hannover Rück

Verified company

World-leading reinsurer with specialised BESS insurance solutions.

System sizes
Round-trip efficiency
Warranty
Delivery time
Solvency II

Engineering & DD

1

Technical advisory and due diligence.

Hannover Rück

Verified company

World-leading reinsurer with specialised BESS insurance solutions.

System sizes
Round-trip efficiency
Warranty
Delivery time
Solvency II

Grid consulting

2

Advisory on the grid connection process.

Wärtsilä Energy

Documents reviewed

Established Finnish system integrator with a strong focus on grid stability.

System sizes
10 MWh bis 500 MWh
Round-trip efficiency
≥ 88%
Warranty
15 Jahre
Delivery time
12–18 Monate
IEC 62619IEC 62933ISO 9001

EPC Solar Plus GmbH

Listed

German EPC provider specialised in PV+storage projects.

System sizes
Round-trip efficiency
Warranty
Delivery time
VDE-AR-E 2510-50

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