Brief for Electricity Consumers and Demand Response Providers as Amici Curiae in Support of Petitioners, On Writs of Certiorari to the United States Court Of Appeals for the District of Columbia Circuit, FERC, Petitioner, v. EPSA, et al. Respondents., EnerNOC, Inc. et al., Petitioners, v. EPSA, et al., Respondents. In the Supreme Court of the United States (Nos. 14-840 &14-841)