2022-01-05-PBC-min - Laserfiche WebLink

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the parking area would impact those calculations and the team needed to review that further. The team touched on the Energy Analysis to summarize that the original model had a project load of 355 Kwh with projected 30% energy savings and 19% cost savings over the baseline, however with the increased square footage the expected load is +/- 386 Kwh with 36% and 27% savings. It is important to note however that the energy model is not yet fully updated. An important question was raised as there is a line in the model that is called Misc. Equipment and accounts for 42% of the load. The design Team was asked to investigate this line and better break out what "Misc. Equipment" represents. It was discussed that a good deal of this may be all the dispatch and radio equipment, however if it was found to be due to the towns IT Infrastructure that too should be flagged. Also requested were the 87/60 values, which the design team stated they would not have until the Energy Analysis was complete at the end of the DD phase. Once all DD phase documents are complete (1/10/22) it will take approx. three weeks to get the completed energy model. Needs for DD Completion The items that will make up the end of DD phase were discussed and will be available in two phases. After 1/10/22 Deadline Red List Database DD status report LEED/Lex Checklist updated thru Design Development 100% Design Development Drawings +/- 3 weeks thereafter: Completed / Updated Energy Model Updated 87/60 values DD Phase Cost estimate It was discussed that information be shared with the Sustainable Lexington Committee so that they could review these current issues at their next meeting as well. The next PBC meeting is to be scheduled for 1/13/22. Once the DD estimate is available and the tentative Select Board Meeting is determined for February, we will schedule a PBC meeting for review of the estimate and a recommendation for the Select Board. PV Canopies Tecton began to look at the design of PV canopies over the parking area with a goal to make the canopies light, airy and less obtrusive then what PV canopies look like in other areas of town. Several renderings were shown along with some precedent images of built examples. Among the noted characteristics, the design is flat, has a small edge profile and is a touch higher than usual (24ft). The canopies were also shown with only about 75% coverage, thus allowing some light and weather to pass through. The height was discussed and the concept was to try and keep these a little higher and less in view, other canopies in town are approx. 14 feet at the low point and approximately 17 ft at the high end. It was noted that Fire Department garage doors are 14 feet. Part of the height logic was tying it to a part of the police station building visually. It was asked if the pitch made a difference and it was stated that flat versus 3 or 5 degrees does not seem to have a big impact on production, although flat and near flat panels do not shed snow particularly well.