What is distributed energy storage?

Distributed energy storage is a solution for increasing self-consumption of variable renewable energy such as solar and wind energy at the end user site. Small-scale energy storage systems can be centrally coordinated by "aggregation" to offer different services to the grid, such as operational flexibility and peak shaving.

Does centralized coordination affect energy storage savings?

Small-scale energy storage systems can be centrally coordinated by "aggregation" to offer different services to the grid, such as operational flexibility and peak shaving. This paper shows how centralized coordination vs. distributed operation of residential electricity storage (home batteries) could affect the savings of owners.

How does centralized storage affect electricity costs?

The impact of centralized coordination of storage resources on the consumer's annual electricity costs generally increases with the level of variable renewable generation capacity in the electricity system while inversely related to level of flexible supply capacity.

What is distributed storage scheduling?

Distributed storage scheduling results in substantially lower integration of EES capacity in the electricity supply. Through arbitrage, storage minimizes the differential between on- and off-peak prices, thereby reducing electricity system costs.

Should energy storage aggregation be a trade-off between private and system benefits?

From modelling method perspective, this implies that models of the electricity system should account for the trade-offs between private and system benefits of energy storage aggregation. Yet it is unlikely that consumers will allow an aggregator to control their resources at all unless they are paid a financial incentive to do so .

What is the difference between centralized and distributed coordination?

Distributed coordination generally induces 4–11% lower savings than centralized coordination, whereas the system's evolution accounts for changes in savings by 1–27%. The largest savings occur in scenarios with high storage and renewable capacity.