Battery Terminology Glossary

R

Rack / String

An assembly of modules connected to form a higher-voltage unit, often in series/parallel. 

Ramp Rate

How quickly an ESS can change its output power, usually MW per minute or per...

Response Time

Time from receiving a control signal to delivering or absorbing power. 

Round-Trip Efficiency (RTE)

Percentage of input energy that can be retrieved after storage. Example: 90% RTE means 10%...