Energy Storage Modules (ESM)

An Energy Storage Module (ESM) is a packaged solution that stores energy for use at a later time. The energy is usually stored in batteries for specific energy demands or to effectively optimize cost.

ESM can store electrical energy and supply it to designated loads as a primary or supplementary source. Moreover, it provides a stable and continuous power supply regardless of the supply source status. Voltage and frequency regulation can also be improved by using ESM modules.

ESM contains inverters that rectify the AC energy into DC to store in the batteries and then invert the DC energy into AC energy. The energy inverted into AC power can be connected to the electrical network at low (<1000 Volts) or medium voltage (<40.5 kV).

ABB provides the necessary electrical, protective and monitoring equipment along with the battery system to utilize the batteries safely with a pre-designed system designed to meet ANSI, IEC, and other international standards. This will guarantee a high level of energy continuity and superior power quality in a safe and cost effective module.

ESM is available in several capacities with individual modules up to 4 MW and an output voltage range from 120 volts to 40.5 kV at 50 or 60 Hertz, single or three phase system.

The ESM enclosure is engineered to maintain the internal temperature within the design limits as well as provide protection. Different temperature classes and protection degrees are available according to the application and size. The degree of protection for the ESM enclosure is designed according to IP or NEMA standards.

Summary
Soaring energy prices and concerns about climate change from man-made emissions of carbon dioxide have propelled energy efficiency to the top of the agenda in the boardroom, in public debate and in public policy. Under this scenario, Energy Storage Modules are a state-of-the-art technology which contributes to raise the efficiency at every stage of the energy chain by:

• Increasing the capacity factor of generation, transmission and distributions assets
• Improving the uniformity and efficiency with which electrical energy is being used
• Raising Power Quality with better voltage and frequency regulation as well as minimum interruptions
• Increasing the capacity factor of renewable energy sources in order to make clean energy available for longer periods
• Providing a reliable source of energy to communities

An ESM module integrates batteries, transformers, and medium and low voltage switchgear together with automation equipment such as inverters in a galvanized steel enclosure. Completely compartmented and segregated enclosures are available upon request.

DES is the energy storage alternative for an efficient and smart electrical network operation through:

• Individual modules up to 2 MW
• Output voltage range of 120 volts to 40.5 KV at 50 or 60 Hertz, single or three phase system
• Individually type tested equipment to satisfy different standards and system requirements
• Enclosure designs with different temperature classes and degree of protection are available according to the application and size
• Different types of batteries according to the application and size
• ABB’s vast and global experience (shipping over 100,000 units) in the design of modular systems, integrating electrical equipment in enclosures for solar and wind applications, as well as utility and industrial
• Global service coverage with a high level of engineering capabilities

The modules are carefully engineered and tested, including the enclosure, assuring high and safe performance.

ESM is the energy storage alternative for efficient and smart electrical network operation through:

• Individual modules up to 4 MW
• Output voltage range of 120 volts to 40.5 kV at 50 or 60 Hertz, single or three phase system
• Enclosure designs with different temperature classes and protection degrees according to the application and size
• Different types of batteries according to the application and size
• Optimal product selection for grid connection combining ABB products and customer interface requirements
• Seamless integration of high quality products to assure high reliability
• Proven track record of containerized solutions in many severe environments all over the world
• ABB’s vast and global experience in designing Modular Systems, integrating electrical equipment in enclosures for renewable, industrial and Utilities applications
• Global service coverage with a high level of engineering capabilities