Various means of storing energy, either directly or indirectly, and either at centralised locations or widely distributed across a Power SystemA highly complex cyber-physical and transactional System tha... Click for more. The numerous types of EnergyElectrical Energy is the product of electrical Power and tim... Click for more Storage can provide system services across different time horizons. These include:
- Shallow storage / Provision of Essential System Services (< 4-hours);
- Medium storage / Intraday shifting (4 – 12-hours); and,
- Deep storage / Renewable energy drought (> 12-hours).
Direct forms of Energy Storage such as Battery Energy Storage SystemsDirect systems involve the flow of an electric charge in a s... Click for more (BESSAn electrochemical Energy Storage device that stores the out... Click for more) and Power Capacitors are those where electrical enters the storage device and is retrieved as electrical energy.
Indirect forms of Energy Storage convert electric energy into thermal, rotational or potential energy. This may include Pumped HydroA type of Hydroelectric Generation Plant where two water res... Click for more (pumping of water to elevated storage), the pre-heating or pre-chilling of bulk water or glycol and/or the pre-cooling of a building envelope.