Measures for conservation: Suggestion; evaluation upon customer’s request.

A utility may suggest measures for conserving energy but may select a measure to be evaluated only upon a customer’s request. Such an evaluation must be based upon: 1. The frequency of recommendations for installation of the measure made in prior inspections; 2. All costs and benefits; 3. The length of the payback period; and 4. Special conditions which affect savings in energy, cost-effectiveness and the likelihood of the measure being installed by the customer after the inspection.