BASF New Business GmbH
BASF New Business GmbH

Proven Technology

Whether at work, at home, in leisure time or when we are mobile: Electricity is one of the essential energy sources to meet this growing demand. As the climate is to be protected at the same time, we now need to find new solutions to reconcile these two conflicting claims. In short: We need more electricity from "clean sources".

Therefore, the importance of energy generation from renewable sources such as wind and solar will become even more important today and in the future to achieve this goal. 

The impact of the transition toward renewable energy sources becomes obvious when looking at the shear amount of power consumption expected in 2050: More than 40.000TWh should come from renewables – this means a 7-fold increase from today!

Due to the weather, however, these energy sources are subject to fluctuations. If it is clouded or when there is no wind, only very little energy can be generated. In contrast to this, on sunny or windy days, more energy can be generated than is needed.

Therefore, we need solutions at this point, which ensure constant and reliable power supply to compensate these fluctuations.

Stationary energy storage by long-duration battery systems is one of the most suitable solutions to solve this problem. They can store excess energy and discharge it at a later time to ensure reliable power supply at all time. Best with our sodium-sulfur batteries.

We at BASF want to contribute to a world that provides a viable future with enhanced quality of life for everyone. That is why we drive sustainable solutions along the complete value chain.

The energy storage team of BASF New Business supports you in finding the best energy solution for your individual use case in power supply.

We are selling stationary storage batteries based on the proven NAS technology, produced by NGK Insulators Ltd. We offer you a comprehensive project management. Together with you, we jointly develop the best solution right from an early stage of your project. We estimate your energy storage needs and carry out initial cost-benefit analysis to find the optimal dimension for your battery system. We deliver technical layout and system configuration. Our global network allows us to connect you with further relevant partners – from financing to EPC services.

Thanks to our global presence we provide local support at each stage of your project: From order placement to battery system installation.

We have colleagues on 3 continents to promptly take care of your request. We work in your timezone and we speak your language! 

NAS batteries are designed for stationary energy storage and boast an array of superior features: 

High energy

A single NAS battery container features 1.2MWh energy. By adding up containers, the total energy of the system can be easily scaled up to multiple MWhs. Therefore, NAS batteries are the #1 choice for high energy applications. field-proven reliability.

Discharge duration 4-8 hours

With its capability to discharge for 4 - 8 hours, NAS battery is best suited for long duration applications such as time shift or peak shaving, but also for grid upgrade deferral.

Long life time

15 years /4500 cycles. Thanks to its slow degradation, NAS battery maintains its functionality for up to 15 years or 4,500 cycles (whatever comes first)

Enhanced safety

Safety is of a paramount importance. Each cell, each module and each container undergo a thorough examination and a number of severe tests before being dispatched. Additionally to the manufacturer`s tests, NAS batteries have been tested by TÜV Rheinland. please find a summary of the TÜV report here:

NAS battery is a truly environmentally benign technology 

There are no "critical" raw materials used in NAS batteries. Na, S, Alu-ceramic, sand, steel - all materials are abundant on earth and can be easily reused or recycled.


NAS battery has high energy density and therefore requires a relatively small footprint

Fast response

When used in a combination with a fast Power Conversion System (PCS), NAS battery can charge or discharge within milliseconds

Minimal maintenance

The battery requires only minimal preventive maintenance

"All climate" technology

NAS battery has a wide operational temperature range and can be deployed in all climate zones.


Over a decade of experience, NAS battery has demonstrated unprecedented field-proven reliability.  

About NAS batteries

NAS battery consists of sodium as the positive electrode and sulfur as the negative one. A beta-alumina ceramic tube functions as electrolyte, which allows only sodium ions to pass through. When discharging, sodium is oxidized and sulfur is reduced to form polysufide (Na2Sx). The charging step recovers again elementary sodium and sulfur. The battery runs at temperatures of around 300°C. Both elements are in liquid state when the battery is operational. The cells are packed into a module, whereby 6 modules are mounted in one battery container. 

We supply containerized NAS battery systems with 200KW/1.200MWh. Additionally we provide 24/7 technical support and a performance guarantee for 10 years. 

The compact form enables easy transportation and quick installation at our customers' sites.  

Containers have been tested for self-extinguishing capabilities and mechanical stability. Depending on your energy storage need, one or more containers can be installed. Typical layout of NAS battery system.  

NAS batteries play an important role all along the power grids and offer multiple values to various market segments.

The applications range from renewable enhancement and upgrade deferral to microgrid solutions. 


  • You can minimize usage of your fossil fuel or biomass generators by combining it with a NAS battery, thus both reducing CO2 emission and optimizing your energy costs.
  • 24/7 Power supply: on sunny days, solar power excesses an average load by 4 to 5 times. Battery needs to discharge for 14 – 18 hours to shift the surplus solar energy to nighttime and early mornings. NAS batteries can discharge for up to 18 hours when discharging at lower output and thus meet 24/7 power supply requirements 
  • NAS batteries in a microgrid configuration with islanding (self-sustaining) capability used in combination with solar or other local power generation can provide additional resilience.


  • Peak shaving: energy costs can be reduced by reducing high peak energy sourced from the grid. The battery is charged when the energy demand is lower than is fed by the grid. During high peak demand times, the battery is discharged and delivers the difference between the demand and the electricity sourced from the grid.
  • Time of use shift: end users with local power generation (mainly PV) can reduce or eliminate their grid power usage by storing excess solar power and shifting its usage from daytime to nighttime and thus optimize their energy costs
  • Backup power and resilience: continuous power supply for six hours or more in the event of grid outages


  • Demand response: supply-demand balance can be maintained by aggregation off-peak demand power not used by consumers and utilizing it for external needs.


  • Renewable generation enhancement: stable and reliable power supply is ensured since fluctuations caused by renewable energy such as wind and solar are leveled out by NAS battery which absorbs excess energy during peak times of energy generation and provides additional power during demand peaks.


  • Investment deferral: transmission and distribution upgrades can be deferred or even eliminated. Power is imported into a transmission constrained area when loads are light, charging NAS batteries that are positioned nearby. During peak load time, NAS batteries are discharged to supplement the power from the transmission lines.  

NAS batteries are a proven technology for more than 15 years with a track record of numerous deployments at customer sites all around the world 

It is the #1 choice for large energy applications. NAS battery systems have been delivered to more than 200 locations worldwide with a total output of more than 560 MW and an energy capacity of 4.0 GWh.

Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA 

Author Name
Author Description

Quote 2 "YYYYYYYYY / Germany (Varel) Quote 2 "YYYYYYYYY / Germany (Varel) Quote 2 "YYYYYYYYY / Germany (Varel) Quote 2 "YYYYYYYYY / Germany (Varel)

Author Name
Author Description

Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA Quote 1 "XXXXXXXX" / USA 

Author Name
Author Description



 Want to know more? Please feel free to contact us under

Contact Europe
Contact in Japan
Contact in Korea
Contact in China
Contact in USA
Contact in Africa
Contact Other regions