methods. It uses subject matter expertise that has been calibrated to fit its risk analyses and validates that expertise through supporting data. Similar to SCE, Sempra has mapped its risk management steps to the Cycla 10step process. Sempra’s risk evaluation tool is also referred to as RET, but it, too, is different from PG&E’s formula. Sempra’s RET formula is stated as: In this formula, impact is a logarithmscale whole integer (1 to 7) index score of consequence. Frequency follows a linear scale and is not modified by a logarithmic function. Sempra’s model chooses a fixed point from each of the seven logscale ranges of frequency to represent a frequency within a frequency range. Sempra’s risk model has four impact dimensions: Health, Safety & Environmental; Operational and Reliability; Regulatory, Legal & Compliance; and Financial. For convenience, we refer to these four broad categories by abbreviating them to safety, reliability, compliance, and financial. The safety impact dimension score receives a 40% weight. The remaining reliability, compliance, and financial impact scores each receive a 20% weight. Whereas PG&E and SCE have distinct impact dimensions for safety and environment, Sempra a different approach by putting any impact touching safety, and environment” under an overarching Safety dimension. “health, Therefore, Sempra’s definition for the safety dimension is more inclusive but less
methods. It uses subject matter expertise that has been calibrated to fit its risk analyses and validates that expertise through supporting data. Similar to SCE, Sempra has mapped its risk management steps to the Cycla 10step process. Sempra’s risk evaluation tool is also referred to as RET, but it, too, is different from PG&E’s formula. Sempra’s RET formula is stated as: In this formula, impact is a logarithmscale whole integer (1 to 7) index score of consequence. Frequency follows a linear scale and is not modified by a logarithmic function. Sempra’s model chooses a fixed point from each of the seven logscale ranges of frequency to represent a frequency within a frequency range. Sempra’s risk model has four impact dimensions: Health, Safety & Environmental; Operational and Reliability; Regulatory, Legal & Compliance; and Financial. For convenience, we refer to these four broad categories by abbreviating them to safety, reliability, compliance, and financial. The safety impact dimension score receives a 40% weight. The remaining reliability, compliance, and financial impact scores each receive a 20% weight. Whereas PG&E and SCE have distinct impact dimensions for safety and environment, Sempra a different approach by putting any impact touching “health, safety, and environment” under an overarching Safety dimension. Therefore, Sempra’s definition for the safety dimension is more inclusive but less
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