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Rate Results <br /> Figure 3 summarizes the results for Scenario 4,with the vertical bars representing the Alameda <br /> CCA customer rate and the counterpart PG&E generation rate shown as a line. As with the other <br /> cases, under the renewable prices assumed in the analysis, the Alameda CCA costs are <br /> consistently less than the PG&E rate. <br /> In Scenario 4,the renewable cost is the largest single element of the CCA rate, reflecting the <br /> high renewable content of this scenario (50% RPS) and, in special,the important share of in- <br /> county renewable generation.Non-renewable generation is the next largest cost component of <br /> the rate, followed by the PCIA exit fee. <br /> Figure 3. Scenario 4 Rate Savings,2017-2030 <br /> 12 <br /> PG&E <br /> 10 <br /> •PCIA <br /> GHG <br /> 140:2 ■O/M <br /> ■Non-Renewable <br /> ■Renewable <br /> 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 <br /> Figure 4 shows the Alameda CCA customer average generation rate for Scenarios 2 and 4. As <br /> seen in this figure, the difference on the generation rate between the two scenarios is minimal <br /> during the first years of Alameda CCA operations (when local renewable content is still low), but <br /> it grows rapidly, ultimately resulting in 6%difference by 2030 (rates for Scenario 4 higher than <br /> Scenario 2). This increase is due to the assumed premium for in-county renewable generation, <br /> ($20/MWh on average). <br /> • <br /> 4 <br />