ENERGY MANAGEMENT
opportunity applied, and based on requirements).
• Energy savings calculations according to Energy Conservation Opportunity (ECO), taking into account the interdependencies of used ECO combinations.
• Purchase cost indication, except for HVAC. Indeed, it only provides installation difficulty indications as this highly depends on the specific situation.
• Installation costs indication, except for HVAC. For lighting, it provides either estimation of installation costs or installation difficulty.
Finally, the HosPilot tool generates a final end-user report, showing which ECO and combinations are achievable, proposing additional energy saving measures and giving the effect of each ECO on the annual energy consumption. Moreover, energy savings on building level also appear.
Impact The following savings can be expected: • Static or parametric improvements – savings that result, for example, from the application of insulation or the replacement of light sources can be covered quite easily in the basic energy demand calculation.
• Dynamic or adaptive improvements from ICT solutions – savings from presence detection or CO2
level response, for
example, can be predicted based on heuristics like ‘how often is a window opened’ or ‘what is the occupancy of a meeting room’. These tend to be geographically, regionally, culturally or even socio-economically dependent and that is why a database is being built to find relevant comparable projects.
Pilot projects To date, the HosPilot service has been applied to the partner hospitals of the HosPilot Consortium, as detailed below. Different ECOs have been implemented in pilot areas that are currently monitored to prove and fine-tune the HosPilot
methodology. Hospital District of South Ostrobothnia,
Seinäjoki, Finland (EPSHP) – The EPSHP provides healthcare services for 26 Finnish municipalities with about 190,000 inhabitants. The whole second floor of a hospital building was used as a pilot area. One-half was renovated with standard equipment while the other half was equipped with new ICT. By pairing identical rooms side-by-side, it has been possible to compare the total electricity usage. Demonstrated ECOs in this project included: • Electronic radiator valves. • Demand-based VAV ventilation (CO2
-control). 22
Outdoor lighting remote management solution in Castelluccio, Corsica, France.
• LED downlights and LED linear tubes. • Dimmable lighting in corridors. • Presence detection information shared for lighting and HVAC.
• LonWorks room controllers: all information is collected via the BMS.
Average energy savings observed in the pilot
area amounted to 21%. Universitair Medisch Centrum
Groningen (UMCG), The Netherlands
– UMCG is one of the largest hospitals (350,000 m2
) in The Netherlands with a total
of 1,300 beds. It provides healthcare for over 1,000 patients every day, and more than 31,000 treatments take place every year. The UMCG HosPilot pilot project introduced more efficient and smarter lighting and climate control systems to make patients feel more comfortable. Three areas have been equipped for the pilot – two nursery departments (2,400 m2
), corridors and
sanitary. ECO’s demonstrated here included: • BMS for dimming and controlling of lights according to time schedules.
• Presence detection for switching LED downlights.
• Advanced HVAC management with windows sensors, carbon dioxide sensors, radiator valves and air valves.
Average energy savings observed in the pilot area totalled 23%. In the sanitary rooms, 30% was saved on electricity through the use of
movement detectors combined with LED lighting. On HVAC, the average saving was 32% for air conditioning and 37% for heating.
Servicio Riojano de Salud, (SERIS)
Hospital San Pedro, Logroño, Spain – The SERIS pilot posed a particular challenge for the developed HosPilot methodology, as it was a newly constructed building, and therefore already employed much state of the art technology. Two pilot areas were chosen, including the third floor of the hospital, which is divided in five different zones. This configuration was chosen to include, as much as possible, all room types necessary to evaluate necessary information about specific energy behaviours of the whole hospital. Comparisons were made possible thanks to ‘twin rooms’ system – one room equipped with the advanced Information and Communication Technologies (ICT) solutions and to act as a reference, the other assigned control room is not. Especially, one of the twin long corridors has been equipped with new lighting technology, and will be compared to the other one. The other area chosen was a waiting room
on the first floor for outpatient consultation. Half of the lighting installation has been changed with ICT and LED solutions in this large room, to allow it to be measured and compared with the other half, which has been maintained as it was originally. Demonstrated ECOs in the project included: • Occupancy schedules of the room.
‘The HosPilot project aims to support decision makers by offering an integrated approach designed to help drastically reduce the energy consumption of newly built hospitals and existing hospitals being refurbished.’
IFHE DIGEST 2013
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