DR Evaluation Workshop 2011 Aggregator
Baselines are a tool to estimate demand reductions. Measuring demand reductions is an entirely different task than measuring power production. Power production is metered and thus is measured directly. Demand reductions cannot be metered. They must be estimated by indirect approaches. In principle, the reduction is simply the difference between electricity use with and without the load curtailment. However, it is not possible to directly observe or meter what electricity use would have been in the absence of the curtailment – the counterfactual. Instead, the counterfactual must be estimated.