For some programs our experience has been that the distributions of savings will often be positively skewed, with a rela

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Status

• Review verdict: approve
• Reusable as written: yes
• Issues found: generic_usable
• Reviewer note: The text describes a generic statistical sampling methodology without specific client data, dates, or personnel. It is reusable for any proposal involving savings estimation.

Text

For some programs our experience has been that the distributions of savings will often be positively skewed, with a relatively small number of projects or facilities accounting for a high percentage of the estimated savings. Accordingly, we generally use a sample design whereby a number of cases with large savings are selected for the sample with certainty, and a random sample is taken of the remaining cases. To further improve the precision, non-certainty cases are selected for the sample through systematic random sampling.

Applicability

• Section: dei_supplier_diversity
• Scope: mixed_context
• Observed documents: 3
• Years: 2012 to 2020
• Issuers: Duquesne Light Company;Pennsylvania Public Utility Commission
• Program types: MISSING
• Jurisdictions: Pennsylvania

Sources

• [F000554, paragraph:342]
• [F009015, paragraph:364]
• [F022331, paragraph:211]