IBERSOL | 2019 Sustainability Report

SUSTAINABILITY REPORT 2019 > Shortening and changing irrigation scheduling in gardens; > Implementing verification routines for taps, flushes, plumbing, junctions and valves, for early detection of repair needs and fixing water leaks; > Checking water accumulators and distribution lines, ensuring ef- ficient insulation. Hot water is produced with a water heater installed in the washing up area and electrical hot water storage tanks for the sinks and basins. We opted to use Class A water heaters in the auxiliary and washing up area, as they ensure good performance with an efficiency of 88% for the total nominal load. In installations with a drive, thermosyphon solar heating systems with a storage tank and solar collectors are installed. This system converts solar energy into useful heat through a solar collector located out- side the building, where heat transfer fluid circulates through the col- lector panels. The storage tank allows hot water to be used when the need for hot water does not coincide with availability of the resource, for example, at night. The solar heating system is backed up by conventional systems for the production of hot water. However, because it preheats water, it represents savings on gas and electricity consumption. Year 2019 2018 2017 2016 2015 Total consumption (m3) 192.075 191.568 189.879 189.234 188.600 Variation in water consumption Water consumption indicated for 2019 corresponds to all consumption points. 51