CITY OF RALEIGH’S CLIMATE / ENERGY ACTION PLAN
TECHNICAL DOCUMENTATION – VOLUME ONE: PROJECT REPORT
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5.2.2
Criteria Weighting
Once the decision criteria were selected, the decision analysis process required an explicit,
numerical weighting of each of the individual evaluation criterion, in order to allow the
estimate of benefits to reflect the importance of the identified goals.
During Workshop No. 1, the Prioritization Team members were divided into three small
groups and an initial scoring exercise was used to develop preliminary weights for the
decision criteria. Each group was asked to assign 100 ‘value points’ to each of the five
criteria with 100 representing the criteria assigned the greatest value. Exhibit 7 contains the
decision criteria and weightings that were agreed to at the end of the verification process. It
should be noted that one of the teams assigned 100 points to each of the criteria, indicating
that all of the criteria were equally and most highly important.
EXHIBIT 7
Summary of Decision Criteria Weightings
Criteria
Agreed Upon
Final Weight
Team 1
Weightings
Team 2
Weightings
Team 3
Weightings
Financially Responsible
95
100
93
100
Realistic/Implementable
95
90
100
100
Operational Impacts
95
85
96
100
Carbon Reduction Potential
90
85
84
100
Coordinates with Other Projects
75
75
75
100
5.3
Strategies Screening
Mindful of the Prioritization Team’s time and to focus their additional efforts, the consulting
team proposed a process that would reduce the number of strategies that would receive the
full review of the Team. The consulting team proposed that the strategies for further
evaluation be focused on those that would potentially provide the highest levels of carbon
emission reductions if implemented, in other words, the first “screen” through which a
strategy would need to pass to receive additional consideration was its contribution to the
reduction of carbon emissions.
With the 2007 baseline emissions established at approximately 150,000 tonnes, the
consulting team proposed that the minimum contribution of a strategy for further
consideration be set at achieving 0.05% of the 2007 baseline or 75 tonnes.
Applying this “screen” the number of strategies for further evaluation was reduced to 32
strategies as shown in Exhibit 8 below.