The systems will be demonstrated at four demo sites: a pilot office building in Seville (Spain, ACCIONA Construction); a water treatment plant in Madrid (Canal de Isabel II & ACCIONA Water); a Pulp and Paper mill in Setubal (Portugal, The Navigator Company); and a student hall in Badajoz (Spain, University of Extremadura).

During the first year of the project, the Demo sites have been evaluated in order to be equipped with their respective LowUP systems during the next year. In parallel, the individual components have been designed and customized for each one of the sites. 

Demo #1: Pilot office in Seville

A pilot office building will be retrofitted with the cooling and heating solutions developed: Heat-LowUP & Cool-LowUP. During the first year, the former warehouse enclosed in Acciona’s Test Centre for Energy Efficiency and Renewable Energy Solutions (CESE3R) has become a retrofitted building that matches the regulatory conditions regarding constructive and mechanical installations. Next, this space will receive the active systems developed by the different project partners.

Pilot office

Demo #2: Student hall in Badajoz (RUCAB)

In collaboration with the University of Badajoz, this is the second LowUP demonstration site. This hall of residence is modern and functional located next to the university campus of Badajoz (Spain). Here, the system to recover heating from the sewage will be installed and tested, as a novelty way to operate in the heating supply system.

Student hall

Demo #3: Waste Water Treatment Plant in Madrid

In collaboration with Canal de Isabel II and Acciona Aqua, this is the third LowUP demonstration site. The “Arroyo Culebro Baja WWTP” manages part of the depuration of the residual water that comes from the city of Madrid.  Located in Getafe (Madrid Spain), it is able to deal with an equivalent population of 1.3 million inhabitants (maximum capacity: 172,800 m3/day).

The plant includes a line of anaerobic digestion of the sludges that allows the production of biogas which becomes electrical power. The process requiresthat key components are kept warm (around 40ºC) which results in huge heating demands. By means of the HP-LowUP system, part of this heating process will be recovered from the wasted sludges of the process thus increasing its efficiency.

Water demo

Demo #4: Pulp & Paper mill

In collaboration with Navigator, this is LowUP’s fourth demonstration site. The Setúbal Industrial Complex is located on the Mitrena peninsula, near the city of Setúbal,(Portugal). This site is home to a pulp mill and two paper mills, one of which (About the Future) was inaugurated in 2009 and is one of the largest and most sophisticated plants in the world. The process of paper manufacture involves highly heating-dependent processes.

The Navigator Company is highly concerned about operational and energy efficiency and has started several initiatives around it. This brings the LowUP project the opportunity to test their HP-LowUP system, by gathering valuated heating from dirty effluents downstream in the main fabrication processes. Different possibilities are being evaluated over the site.


Pulp paper