Non-Wires Solutions to Defer T&D Upgrades: A Comparison of Two Case Studies in the Pacific Northwest

Robert Bordner and Jim Perich-Anderson, Energy Market Innovations, Inc.
Patrice Ignelzi and Joe Prijyanonda, Global Energy Partners, LLC

Keywords

Abstract

This paper provides a review of key results and lessons learned from two comprehensive studies undertaken to assess the technical potential for energy efficiency, distributed generation, and demand response initiatives to defer Transmission and Distribution (T&D) System upgrades in the Pacific Northwest.

Two separate studies were completed by the authors, each using the same methodology, but with very different results. Each of the two distribution systems in question is a coastal, rural area and both face up-coming capacity constraints. The customer base in each case is fairly similar, consisting of a few large industrial customers and relatively dispersed commercial and residential loads. Yet the local economic conditions and demographics are very different and, as a result, the outcome of each study was very different.

This paper reviews the technical approach utilized in the studies, as well as the key outcomes. Similarities and differences are compared, as well as the rationale for these results. The authors also discuss key data and analytical constraints encountered in working at a very local level, as well as important implications for program design. In the conference presentation, we will also provide an update on the status of these projects, including how the results have been used in making investment decisions related to T&D upgrades.