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Introduction to Whole Building Scoring
The Whole Building Scoring Methodology enables Organizations to see “the needle move” as Tasks are completed by focusing on the highest impact and more important equipment. The updated methodology will show more variation in the score as new issues arise and the team actions these Tasks. The score is equally weighted across four equipment groups (or those integrated) - Air Handlers, Cooling System, Heating System, and Zone Equipment - to also see the larger impact of these critical central plant equipment that may be smaller in quantity compared to zone equipment.
See how your Organization scores in the Building Scorecard Dashboard.
Energy Score Proxy
Our Diagnostics use a sophisticated methodology to determine the energy waste and calculate the avoidable cost resulting from a fault or inefficiency. Diagnostic Avoidable Cost is thus the best proxy for calculating the energy performance of a building. A building with higher Diagnostic Avoidable Costs is performing poorer than a building with low avoidable costs and attention should be directed to faults resulting in the largest avoidable costs for savings.
Score Equipment Groups
Each piece of equipment is rolled up into one of four equipment groups: Air Handlers, Cooling System, Heating System, and Zone Equipment. Scores are then equally weighted across each of the equipment groups integrated for the site. When all equipment has been integrated, each equipment group will affect 25% of the overall score. In an example where only Air Handlers and Zone Equipment are integrated at the building, the scores from each equipment group will be 50% of the overall score. The intent is to weigh more critical equipment like chillers that are smaller in quantity than zone equipment like VAVs more heavily to see the impact overall on the score.
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The following Equipment Classes were not included in the building score: building, compressed air system, filter, lighting system, motor, outdoor conditions, pipe, power generation, process water system, programs, pump, tank and treatment, utilities, vertical transport, and waste water system.
Maintenance Score
The Maintenance Score is calculated by taking the maximum priority Maintenance Priority of all the analyses on a piece of equipment, averaging that across all equipment in that equipment group, and then equally weighting all the equipment groups into a single Maintenance Score.
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Finally, the Portfolio Maintenance Score is the average score across all the buildings within that Portfolio. The Portfolio Maintenance Score in this example is then 63%, or the average of Building 1 and Building 2 Maintenance Scores of 66% and 60%, respectively.
Comfort Score
The Comfort Score is calculated in the same way as the Maintenance Score, however /wiki/spaces/BRED/pages/17956881 Comfort Priorities are only calculated for Air Handler and Zone Equipment groups. Thus, the Comfort Score is equally weighted between those two equipment groups.
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