This document summarizes time-variant electricity pricing programs in Illinois operated by utilities ComEd and Ameren Illinois. It describes pilot programs from 2003-2010 that tested different rates, as well as current opt-in hourly and peak-time pricing programs. Elevate Energy provides customer support, marketing, education and communications to participants in these programs. The programs have achieved energy savings, bill savings, demand response and high customer satisfaction on average, but face challenges with enrollment stagnation, marketing limitations, and program complexity without guaranteed benefits.