One way to reduce wastage of energy is to delivery advice to its users on how they can help to save energy and avoid waste.  The Hit2GAP ('H2G') system can provide 'live' energy advice, which takes into account the readings from sensors and meters distributed around the building, thus enabling occupants to make simple changes which will save energy.  For example, if the H2G system finds that a room is heated, cooled, ventilated or lit, but not occupied, then it can advise a facilities' manager (someone who manages energy and other services (such as lifts, etc.,in the building) that energy in that room is being wasted.  

Furthermore it can provide this information by a variety of mechanisms: SMS text messaging, e-mail or an 'energy-reporting dashboard', in a simple or detailed format.  These 'dashboards' can be tailored for specific audiences, for instance a simple dashboard could be displayed in a students' common room to inform of a mobile phone 'app', but a facilities' manager for the same building could be provided with a more detailed dashboard to maximise opportunities to improve performance.  The H2G advice does not only report the reason why energy is being wasted but can also advise on how to rectify a problem: for example, it could advise the building user to switch off the heating in the space where energy is being wasted, or it could advise users to open a window to prevent impending overheating.

In identifying the needs of occupiers, H2G determines where the occupiers are and their level of activity, and evaluates their environment.  If it finds that the lighting, temperature or ventilation are inappropriate for the number of people in each room, then it can flag up a possible 'waste event'.

H2G also looks at the movement of energy around the building, taking account of the heating, ventilation, air conditioning, lighting, power and ICT devices, and it also considers the associated external and internal environments: looking at the weather outside, the indoor air quality, such as the carbon-dioxide levels, humidity and temperature, and the geometry of the building.  Through detailed data processing it generates relevant information and recommendations, and then presents this advice in ways that are tailored for the various audiences.


Pilot Projects

Four pilot projects are being carried out as part of the HIT2GAP Project. These are in Spain, France, Ireland and Poland. For more information regarding the HIT2GAP demonstration buildings, contact Juliusz Zach, Mostostal.


  • Establish reference (base year) energy performance.
  • Gather data from energy bills related to the base year.
  • Compare the designed (simulated) and real energy performance of each pilot.
  • Survey user preferences.


The Spanish pilot study is focused on a building in San Sebastian containing offices and laboratories.

The building has photovoltaic (PV) panels and a BMS which controls the lighting and HVAC system.

This 6200 square-meter building, completed in 2009, is used to fabricate nanscale materials and to characterise their properties with high sensitivity.  It provides an indoor environment which is free from electromagnetic interference with an ultra low level of vibration.  The building includes a large clean-room (300 square metres) in which air purity is closely monitored.  It also includes an electron microscopy laboratory, nano-optics laboratories, nano-bio facilities and advanced equipment for nano-fabrication and characterisation.

Giroa are responsible for this demonstration.


Challenger, a large office complex on the outskirts of Paris is to be used as one of the pilot demonstration buildings for the HIT2GAP project.

The Challenger building is situated at the headquarters of Bouygues Construction located in Saint Quentin en Yvelines near Versailles in France and is one of the demonstration sites of the HIT2GAP project.  The site comprises 3 main office buildings with a total area of 67,000 m2, it has achieved triple certification: LEED, BREEAM and HQE and contains a large set of renewable energy technologies including 24,515 m2 of photovoltaic and dual solar panels as well as ground source heat pumps connected to geothermal wet and dry probes.

The BMS operates lighting, HVAC, hot and cold water and technical alarms in the building

Bouygues Energies & Services are the project partners responsible for this pilot study.


The demonstration building in Poland is located in Warsaw and is a public building which also contains offices.

There are no renewable technologies in this building. The BMS controls lighting and HVAC.

This 12406 square-metre building, completed in 2014 is a 4-storey public building containing offices and an underground car park.

Mostostal are the contacts for this demonstration.


The Irish pilot study is focused on a building in Galway containing offices, lecture theatres and laboratories.

The building has a Climate wall with top-vented stack control and solar control via blinds, lighting systems and a  BMS which controls the HVAC system.

This 14250 square-metre building is a 4-storey engineering teaching and research building which was completed in 2011.  It includes 400 classrooms, some large lecture theatres and 25 breakout zones.  The building has rainwater harvesting, a biomass boiler, grass roofs and a variety of other green technologies.

Cylon Controls are responsible for this demonstration.

Renovation of Challenger building near Paris

Alice Perry building in Galway