This document provides an overview of demand response and how EnerNOC helps facilitate it. Demand response works by utilities notifying EnerNOC of impending supply shortages, EnerNOC dispatching customer portfolios to curtail energy usage, customers implementing curtailment plans, and load reductions being delivered to the grid precisely when needed, with customers receiving payments. EnerNOC helps all types of commercial and industrial customers earn money through demand response programs while preserving operations, communities, and the environment. The case study highlights how EnerNOC can create value for a multi-tenant industrial park through customized energy reduction plans and maximizing event performance and payments.