General Retrofitting of the Demo Sites

So where are these demo sites?


The first demo site, is an Office Building of the Basque University in northern Spain – Oceanic climatic area

BilbaoExterior Views of the Bilbao Campus, Leioa


The next demo site is the Technological Museum located in south Sweden – Continental climatic area.

MalmoExterior Views of the Technology and Maritime Museum, Malmö


The final demo site, is a High School student’s dormitory in mid Turkey – Mediterranean climatic area

AnkaraExternal view of the dormitories and main entrance at Ankara


a2pbeer map demosThe demonstration sites or public buildings are located in three different climates and have varying uses. A2PBEER defined public buildings as the following: “buildings that are owned or occupied by public authorities or are intended for the use of the general public.”

Extensive research by the A2PBEER team, has identified common aspects in the basic retrofitting requirements for Public Buildings. The identification of collective retrofitting approaches have been recorded as well as the assessment of suitable technologies, strategies for retrofitting and best practices on retrofitting.

READ MORE about the demonstration sites by clicking the link: HERE

The achievement of the energy use reduction in the three demo-sites after retrofitting, will be demonstrated through continuous monitoring of building energy consumption, outdoors and indoors comfort conditions during a whole year before and post intervention. The results from the monitoring will be discussed in the next newsletter in more depth.


The main question is:

Which of the retrofitting technologies and methods should be best applied to which type of building or district, in which climate?

The interaction between energy usages within public buildings were investigated. The A2PBEER approach on defining energy usage characteristics in public buildings includes an investigation on three scales:

  • Environment
  • District
  • Building

district energy a2pbeer

Scope of the assessment: three scales have been identified that affect the energy use of public buildings and districts: Environment (Climate, microclimate); District; and Buildings scale

To achieve significant energy savings A2PBEER also looked at assessing three different methods:

  1. Energy demand reduction for heating, ventilation, air conditioning – Expected annual energy demand reduction (%)
  2. Energy generation by integrating renewable energy sources or combined heating and power – Generating capacity for one unit (kW).
  3. Reduction of energy consumption by improving service efficiency or controls- estimate annual electricity/gas/fuel savings (kWh/Therms).

Over the last 12 months, as part of the A2PBEER project, energy efficient assessments were carried out for all three demo sites. The data was then collated and analysed to determine the best practice approach in deep retrofitting for each building.  Because of the broad variety of uses and associated characteristics, setting up a typology for the non-residential sector is complex. It is therefore important to consider both; the practicability of and availability of data for such a structure. The study provided a categorization of public buildings and districts based on their functionality and context, and determined the most important factors that should be considered when assessing public building energy efficiency and retrofitting possibilities. After identifying these factors, a matrix was developed to address the interaction between these different characteristics and best practice methods for a common deep retrofitting approach for public buildings and districts.

Other factors to be considered, include non-technical barriers which can hinder energy efficiency retrofitting in public buildings. It was concluded that the main barrier for not implementing energy efficient retrofit measures in public buildings is the financial barrier.

To overcome these barriers A2PBEER is to provide innovative solutions for energy efficient deep refurbishments.  The correlations between these characteristics and energy usage are defined in a characteristic matrix which has been incorporated into an online Support Guide toolkit. This support guide is to consider a deep retrofitting methodology for public buildings, taking into account the buildings’ technological characteristics, financial budgets and stakeholders’ requirements.

This Support Guide toolkit will be available to view in June on the A2pbeer website.

It is intended that A2PBEER will develop a strategy to disseminate its results among stakeholders, investors and building users alike over the coming months.

stakeholders interactions

The identified stakeholders’ possible interactions

To read more about the project and about the retrofitting methods in more detail click and/or download the links PDF links: CLICK HERE