Distributed Renewable Energy Operating Impacts and Valuation Study

Section 1
engage a variety of interested parties in the process during the analysis of the data and the
creation of the Study to build a robust, supportable outcome for the longer term.
The Study was initiated June 6, 2008, with an open forum to outline the process to be followed,
and to explore the concerns of the various stakeholders. This forum was followed by five
workshops spread across the ensuing months, each tied to the specific task. Given the building
block nature of the Study, each successive workshop reported on the initial findings of the prior
task, and outlined the steps being taken for the next phase of the Study. The schedule and
iterative nature of the forums / workshops is shown in Figure 1-9. All materials presented during
the forums / workshops were posted on the Study web site for access by stakeholders.
Figure 1-9: Project Progress
Stakeholder
Kick-off Forum
Workshop 1
Workshop 2
Workshop 3
Workshop 4
Workshop 5
Stakeholder
Final Forum
TASK 1
Solar Characterization
TASK 2
Distribution Impact
TASK 3
Transmission Impact
DESIGN ANALYSIS RESULTS CONCLUSIONS
DESIGN ANALYSIS RESULTS CONCLUSIONS
DESIGN ANALYSIS RESULTS CONCLUSIONS
TASK 4
Energy & Capacity
DESIGN ANALYSIS RESULTS CONCLUSIONS
TASK 5
Business Case
DESIGN
RESULTS
CONCLUSIONS
& REPORTS
The workshops were designed to be interactive with stakeholders encouraged to question results,
offer suggestions for strengthening the Study and to bring new data to the attention of the Study
team. The Study team took the input and often recast model results based directly on the
stakeholder suggestions.
1.4.4 APS-Specific Conditions
The Study approach specifically focused on calculating the value of solar DE generation to APS.
In contrast to many other published efforts seeking to assess far-reaching societal benefits, this
Study objective reflected APS specific conditions, demographics and system design. Each
organization on the Study team was selected for the strategic value they brought in this regard
and their ability to contribute to evaluating the impacts and values that solar DE technologies
will have on the APS system.
The Study team capitalized on combining its functional strength in electric delivery system
analysis with APS resources to properly quantify the benefits of distributed solar generation for
1-16 R. W. Beck, Inc. Arizona Public Service