1. A computer-implemented method, comprising: receiving a database query; determining at least one data element required for executing the database query; identifying, from a plurality of storage devices, a storage device storing the determined at least one data element; adding the received database query to a first queue of a plurality of queues each having a plurality of queued queries, each of the queues having a predefined association with a respective storage device of the plurality of storage devices, wherein the predefined association of the first queue is a first predefined association with the identified storage device storing the determined at least one data element, wherein each of the queued queries of a given of one of the queues requires one or more data elements stored in the respective storage device in order to be executed, wherein each queued query is received during a specified time period, and wherein the specified time period is selected according to an energy consumption objective; and after the specified time period: dispatching the plurality of queued queries from the first queue; retrieving, from the respective storage device, data elements required for executing the dispatched queries; and executing the dispatched queries, using the retrieved data elements as inputs.