Demand Response with Communicating Rational Consumers

TL;DR

This paper analyzes how different consumer behavior and communication models affect the performance and welfare in real-time energy pricing systems, providing insights into demand uncertainty and policy impacts.

Contribution

It introduces models of consumer behavior and communication in demand response, analyzing their effects on system performance and welfare, with practical algorithms for consumption scheduling.

Findings

Communication reduces demand uncertainty.

Private vs. complete information models have similar welfare impacts.

Price policy parameters influence welfare loss from selfish behavior.

Abstract

The performance of an energy system under a real-time pricing mechanism depends on the consumption behavior of its customers, which involves uncertainties. In this paper, we consider a system operator that charges its customers with a real-time price that depends on the total realized consumption. Customers have unknown and heterogeneous consumption preferences. We propose behavior models in which customers act selfishly, altruistically or as welfare-maximizers. In addition, we consider information models where customers keep their consumption levels private, communicate with a neighboring set of customers, or receive broadcasted demand from the operator. Our analysis focuses on the dispersion of the system performance under different consumption models. To this end, for each pair of behavior and information model we define and characterize optimal rational behavior, and provide a local algorithm that can be implemented by the consumption scheduler devices. Analytical comparisons of the two extreme information models, namely, private and complete information models, show that communication model reduces demand uncertainty while having negligible effect on aggregate consumer utility and welfare. In addition, we show the impact of real-time price policy parameters have on the expected welfare loss due to selfish behavior affording critical policy insights.