190305|Storage Glossary of Terms-储能专业术语集！

Demand charges

Demand charges are the charges that commercial customers pay for the peak amount of power (load) that they draw from the grid. Demand charges can be a substantial portion of a utility bill; a battery helps lower them by allowing the commercial building to draw from the battery instead of the grid during peak times.

Demand response

Demand response programs compensate utility customers for reducing their electricity use (load) at the request of the utility. 

Frequency regulation

Frequency regulation happens when the utility calls upon batteries to inject power into the grid or take power off the grid to help the grid maintain a stable frequency. Battery owners are compensated for this service. 

Lithium ion

Lithium ion is the overarching term for any lithium-based rechargeable battery. The name refers to lithium ions that are shuttled between cathode and anode when the battery is charged and discharged. 

Load shifting

Load shifting is the process of shifting the time when energy is used. For example, running the dishwasher at night to take advantage of off-peak energy prices.

Peak shaving

Peak shaving is the process of reducing peak power usage.