org.powertac.common.msg

Class BalancingOrder

java.lang.Object

org.powertac.common.state.XStreamStateLoggable

org.powertac.common.TariffMessage

org.powertac.common.msg.TariffUpdate

org.powertac.common.msg.BalancingOrder

All Implemented Interfaces:

ValidatableMessage

public class BalancingOrder
extends TariffUpdate

Represents an offer of balancing capacity from a broker to the DU. Applicable only to tariffs that have a Rate with non-zero xxx, for the current timeslot, and a non-empty set of customer subscriptions. A BalancingOrder can specify up-regulation by curtailment (0 < exerciseRatio <= 1), by discharging a battery (1 < exerciseRatio <= 2). A BalancingOrder can specify down-regulation (-1 <= exerciseRatio < 0), which translates to charging a battery (possibly faster than its default charge rate) or to dumping thermal energy into some type of thermal storage device (e.g. making more ice or raising the temperature of a water heater). The Broker specifies that proportion of the remaining curtailable capacity (remaining after possible application of an economic control) that can be curtailed for balancing purposes, but note that the actual curtailment is also constrained by the Rates in force during the timeslot. Once submitted, a BalancingOrder remains in effect until replaced with another BalancingOrder for the same Tariff. If the DU exercises a BalancingOrder, the broker is paid the specified price just to the extent that the balancing is for the benefit of some other broker. In other words, if the curtailment is used exclusively for the benefit of the issuing broker, it simply offsets the payment the broker would otherwise have had to make to the DU for the shortage or surplus. State log fields for readResolve():
new(double exerciseRatio, double price, long tariffId, long brokerId)

Author:

John Collins

Field Summary

Fields inherited from class org.powertac.common.TariffMessage

broker, id

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BalancingOrder()
	BalancingOrder(Broker broker, TariffSpecification tariff, double exerciseRatio, double price) Creates a new BalancingOrder for the given tariff.

Method Summary

Methods

Modifier and Type	Method and Description
double	getExerciseRatio()
double	getPrice()
boolean	isValid() Valid if exerciseRatio between 0 and 1

Methods inherited from class org.powertac.common.msg.TariffUpdate

getTariffId

Methods inherited from class org.powertac.common.TariffMessage

getBroker, getId

Methods inherited from class org.powertac.common.state.XStreamStateLoggable

readResolve

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BalancingOrder

public BalancingOrder(Broker broker,
              TariffSpecification tariff,
              double exerciseRatio,
              double price)

Creates a new BalancingOrder for the given tariff. If cleared in the balancing market, the price is the per-kWh value, positive if the broker is paid. The exerciseRatio specifies the allowable amount of regulation covered by this order. Values between 0.0 and 1.0 represent curtailment, or up-regulation. Further up-regulation is possible for storage devices with values between 1.0 and 2.0. Down-regulation (charging a battery or dumping energy into a thermal storage device) is represented by values between -1.0 and 0.0. In most cases, a broker should expect to be paid for up-regulation, and to pay for down-regulation.

BalancingOrder

protected BalancingOrder()

Method Detail

getExerciseRatio

public double getExerciseRatio()

getPrice

public double getPrice()

isValid

public boolean isValid()

Valid if exerciseRatio between 0 and 1

Specified by:

isValid in interface ValidatableMessage

Overrides:

isValid in class TariffMessage