Aggregated Demand Response Proof of Concept Agreement with Seven States Power Corporation - Contract No. 544179

The OIG audited the payments TVA made to Seven States Power Corporation (Seven States) under Contract No. 544179 for a demand response pilot study in which Seven States was to demonstrate its capability to provide aggregated demand response (ADR) services. Under the ADR Proof of Concept (POC) program, Seven States serves in an administrative role, coordinating recruitment of customers, communication with TVA, and tracking of program performance. Participating customers are incentivized to reduce power usage at specific times when called on by TVA. Seven States aggregates the load reduction estimates submitted by participating customers each month and provides TVA with an overall estimate of the load reduction available for the ADR POC program as a whole. End-use customers are compensated through separate agreements. Our audit objectives were to (1) determine if the amounts invoiced by Seven States were in compliance with the contract terms and (2) assess the effectiveness and management of the ADR POC program. Our audit included $2.34 million in payments made to Seven States from August 1, 2013, through February 5, 2016. In summary, we found Seven States invoiced amounts to TVA in accordance with the contract terms and conditions. However, we also found (1) Seven States has not met capacity nominations, and (2) TVA's management of the ADR POC program needs improvement. Specifically, TVA management did not establish capacity nomination limits that reflected Seven States' actual load curtailment capability and penalties for underperformance until September 30, 2015, which resulted in TVA incurring approximately $1,028,000 in additional costs; has not performed a cost/benefit analysis of the six load curtailment events; and has not established criteria to measure the program's effectiveness.(Summary Only)