scope:

The present document identifies the main needs and applications of stationary electrical energy storage for ICT sites such as back-up on different grid quality and cyclic use of renewable energy systems. It also provides possible selection criteria for the correct choice for the end system. The topics considered are:

• families of electrical energy storage such as batteries or super-capacitors;

• technologies types and their main properties;

• adaptation to requirements (functionalities, technology availability, electrical characteristics, environmental adaptation, maintenance type, cost, etc.);

• national or regional rules and regulations.

The present document highlights the need of evaluation methods that are complementary to existing battery standards as they allow different time frame including shorter tests compared to common energy storage industry tests.

The present document introduces a series of subparts that covers energy storage technologies (battery, super-capacitor, etc.) applicable to stationary Telecom/ICT equipment used in telecom networks, data centres and customer premises (CPE).