BalancingMarket (Power TAC accounting service 1.8.0-SNAPSHOT API)

```
public interface BalancingMarket
```
Interface that defines the publicly accessible methods a Power TAC balancing market has to implement.

Author:

John Collins

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Double`	`getBalancingCost()`	Returns the per-timeslot charge for running the balancing market
`Double`	`getDefaultSpotPrice()`	Returns the value used for spot price per MWh if unavailable from wholesale market.
`double`	`getMarketBalance(Broker broker)`	Returns the market balance for a given broker.
`Double`	`getPMinusPrime()`	Returns the slope of cost curve for down-regulation.
`Double`	`getPPlusPrime()`	Returns the slope of cost curve for up-regulation.
`double`	`getRegulation(Broker broker)`	Returns the net regulation energy (positive for up-regulation, negative for down-regulation) for a given broker.

- Method Detail
  - getMarketBalance
```
double getMarketBalance(Broker broker)
```
    Returns the market balance for a given broker.
  - getRegulation
```
double getRegulation(Broker broker)
```
    Returns the net regulation energy (positive for up-regulation, negative for down-regulation) for a given broker.
  - getPPlusPrime
```
Double getPPlusPrime()
```
    Returns the slope of cost curve for up-regulation. Total cost for up-regulation by x kwh is pPlus + x * pPlusPrime. Note that x is positive for up-regulation.
  - getPMinusPrime
```
Double getPMinusPrime()
```
    Returns the slope of cost curve for down-regulation. Total cost for down-regulation by x kwh is pMinus + x * pMinusPrime. Note that x is negative for down-regulation.
  - getBalancingCost
```
Double getBalancingCost()
```
    Returns the per-timeslot charge for running the balancing market
  - getDefaultSpotPrice
```
Double getDefaultSpotPrice()
```
    Returns the value used for spot price per MWh if unavailable from wholesale market.