The baseline of measurement for usage volume, usually for the previous 12 months as provided by the TDSP.

 A two sided transaction, i.e., a buyer and a seller meet on a shared platform to transact.

 Shortened form – “Cal”. The average of the component monthly values of a financial instrument (NYMEX natural gas, heat rates) for a specific calendar year.

 The maximum amount that something can contain, for instance pipeline capacity or generation capacity.

 The cost of overcoming obstacles in the path of power delivery.

 An upward sloping forward curve.

 Day Ahead Market. A bilateral market for the following day’s (or incremental portions) power pricing.

 The amount of energy required to meet a load’s needs.

 An intentional change (decrease) of power usage by a load financially incentivized to partially offset increased demand on a power grid.

 Texas ISO – Energy Reliability Council Of Texas.