Rating System

LEED BD+C: New Construction, LEED BD+C: New Construction, LEED BD+C: Schools, LEED BD+C: Schools, LEED BD+C: Core and Shell

Rating System Version

v2 - LEED 2.2, v3 - LEED 2009, v2 - Schools 2007, v3 - LEED 2009, v3 - LEED 2009

Inquiry

The project includes two indoor swimming pools - one lap pool and one recreational pool. We plan to claim energy savings for the pools and natatorium. ASHRAE 90.1 will be used as the baseline for those elements that are covered by the standard; pool heating boiler performance, space ventilation fans, and lighting. For the performance of other pool equipment not addressed by the standard, specifically pool circulating pumps, the pool filtration systems, and the natatorium humidification control, we are proposing the baseline to be a recently completed pool that is owned and operated by the same entity as this project. We will quantify the baseline through field measurements and interviews as appropriate. Baseline pool circulation rates will be determined by the local health code and heating energy and evaporation rates will be calculated using the Energy Smart Pools software (see http://www.rlmartin.com/rspec/). Adjustments will be made to the baseline to account for each pool\'s temperature and activity rate impacts on evaporation in order to calculate natatorium dehumidification requirements. Pool and natatorium energy efficiency measures that we plan to carefully consider include optimum selection of pool circulating pumps for maximum efficiency, minimizing the total pressure drop through the pool circulation systems, variable speed circulation pumps, dehumidification (either mechanical or with outside air) with heat recovery, and a solar make up air preheating system. The savings for the potential pool and natatorium measures will be calculated from the baseline described above. Is this an acceptable methodology to establish the baseline and energy savings for the non-regulated loads in the pools and natatorium?