WSP05409

• File Number: 8220.101.17
• Description: Glen Canyon Dam/Lake Powell
• State: AZ
• Basin: Colorado Mainstem
• Date: 3/1/1998
• Author: Loftin/et al.
• Title: Replacement Resources Process - Final Methods Report - Executive Summary
• Water Supply Pro - Doc Type: Report/Study

Introduction

This report is a sigruficant
rrulcstone in Western Area
Power Administration's (\Vestem)
Replacement Resources Process. The
Replacement Resources Methods Report
(Methods Report) describes the study,
findings and conclusions in Western's
evaluation of economically and technically
feasible methods that the agency proposes
to use to replace capacity made unavail-
able ("lost") due to changes in operational
constramts at Glen Canyon power plant,
and other power features of the Colorado
River Storage Project (CRSP).

This document meets the require-
ments for the report required by Section
1809 of the Grand Canyon Protection Act
(GCP Act) of 1992 (Title XVJlI of the
Reclamation Projects Authorization and
Adjustment Act of 1992, PL. 102-575).
Volume I of this report summarizes
Western's Replacement Resources
Process. It prO\;des background infonna-
tion on the process used to consult "ith
mterested parties, the analysis used to test
the feasibility of methods to replace
capacity lost at Glen Canyon and the
proof-of..-concept methodology. It also
outlines the methods Western "ill use to
acquire replacement resources, including a
discussion on how replacement options
\\ill be evaluated. Fma.lly, this report
addresses Western's conclusions and
outlmes Western's proposals for how it
\\ill meet customer's needs for rep~ace-
ment power. Additional details on the
background, resource acquisiuon and the
proof.-<lf-<:oncept modeling are found in
Volume 2 of this report (\'01. 2: .\lcthods
Report)

The Grand Canyon Protection
Act of 1992 - Replacement
Power

The Replacement Resources
Methods Report was developed as part of
the agency's Replacement Resources
Process. This process was initiated in
response to the GCP Act of 1992. The
purpose of the GCP Act IS "to protect,
m1flgate adverse impacts 10, and im-
prove the values for whIch the Grand
Canyon National Park and the Glen
Canyon Nah'onal Recreation Area were
established, "tI'hile preserving the dam s
water storage, allocaI1on, and dehvery
functions. "

Section) 809 of the GCP Act,
entitled "Replacement Power." specifies
that "The Secretary of Energy...

.....in consultation \\ith the Secretary of
the Interior and \\ith represenlatives of the
Colorado River Storage Projecl power
customers. environmental organizations
and the States of Arizona, California,
Colorado. Nevada, NewMexico. Utah and
W .
)'o011Og...

.....shall identify economically and techni-
cally feasible methods of replacing any
power generation that is lost through
adopllon oflong-tenn operational cnteria
for Glen Canyon Dam..

.....shall mclude an investigation of the
mochfications or addnions to the Uan.smls-
sion system that may be required to
acquire and deliYer replacement power....

.....shall include an mvestigation of the
feasibility of adjusting operations at
Hoover Dam to replace all or part of such
lost generation... land]

~ This documentmee~ the
requirem€n~fortherepcrt
[required bytheGrill1d
Canyon Prob:c1ion Act], I
provides background
information on the jl'ocess,
and outlines the methoos
Western will use to acquire
re~acementresources,

II