The Public Housing Fund of the Municipality of Ljubljana
Tonka Grgic, Local Coordinator
Zarnikova 3, 1000 Ljubljana, Slovenia
Phone: 38613061417 Fax: 38613061578
Ljubljana REBECEE Architectural Exhibition
on low energy and passive building designs took part
at the Glass Pavilion of the City Hall. The opening
ceremony took part on 9 June at noon. The opening
speech was given by Tonka Grgic, National Coordinator
of the REBECEE project on behalf ob Joka Hegler,
Managing Director of the Housing Fund of the Municipality
of Ljubljana. She presented several realised and many
on going investment projects financed by the Housing
Fund and the importance of REBECEE movement in decision
making towards low energy public housing and more
intensive use of renewable energy sources in this
Then Mr. Peter Friemert,
REBECEE coordinator, presented Europe wide results
of the REBECEE activities and invited the audience
to visit several building developments being carried
out under the REBECEE umbrella.
The final opening
speech was given by Ljubljana Vice Meyer Mr. Jani
Moderndorfer that pointed out the leading position
of Ljubljana in Slovenian space speaking about energy
efficiency and use of renewables in apartment buildings
especially in public sector. He also asked for more
financial incentives for public sector within the
Slovenian Eco Fund budget and policy. These words
were addressed to Mr Franc Beravs, the Managing Director
of the Eco Fund that was also present at the opening.
The graphical architectural
exhibition presented 16 projects:
• Two realised refurbishment projects managed
by the Housing Fund of the Municipality of Ljubljana
• Four larger public housing developments in
realisation phase by the Housing Fund of the Municipality
• Two kindergardens, one new and one refurbishment,
both in passive design
• Four student works on apartment passive buildings
that has been awarded in international contest among
European schools for architecture
• A passive one family house that has been awarded
as the best passive house in 2008 National Contest
for the best renewable housing project in Slovenia
• Two projects by the Šiška High School
in Ljubljana. The school has its own 26 kWp PV power
plant being some years in operation and has also installed
various PV configurations for training purposes. The
school presented two posters at the exhibition. On
one poster they reported on their activities on PV
field and on the second poster they reported on solar
cookers activity: they realised various solar cookers
and monitor their performance.
The exhibition panels from 2008 and 2009 architectural
exhibition are on-line available through the virtual
exhibition at www.rebecee.si
The exhibition has
been opened 17 days for public with 50–60 daily
visitors in summary 935 visitors, among them many
foreigners. Their feedback in the exhibition book
was very positive.
Along with the architectural graphical exhibition,
six very informative realised projects were open for
public visits. In the timeframe of the exhibition
10 guided tours to these developments were organised
with presence of designers and professionals that
were engaged in the realisation. 46 visitors joined
these guided tours, most of them being in the investment
preparation phase for their new house.
Building at Steletova
8 in Ljubljana is residential tenant apartment
building with 60 flats in 5 levels. The building has
basement with some flats and storage rooms. There
is around 3.781 square meters of usable floor area.
Current energy consumption: 75-85 kWh/m2 year Energy
use after sanitation: 5-6 kWh/m2 year
Reduction level: 93 % Realisation: 2007
Building at Kvedrova
17 in Ljubljana, represents a section of row
typical post war blocks of apartments. It has basement
with store rooms and five floors with 20 flats. There
is around 1.312 square meters of usable floor area.
Current energy consumption: 75-85 kWh/m2 year
Energy use after sanitation: 16-17 kWh/m2 year
Reduction level: 80 % Realisation: 2007
Sanitation measures for both projects:
Additional thermal insulation on exterior walls, basement
ceiling and attic ceiling
Replacement of windows and facade doors with energy
Application of mechanical ventilation systems with
75% heat recovery
Application of external thermal shutters
Sanitation of balcony thermal bridges.
will be developed compact housing project with 15
single family low energy houses. Each house will have
175 m2 usable surface on building plots from 292 to
Specific energy use: 36-37 kWh/m2 year.
Investor, Public Building Fund of the
municipality Ljubljana (»the Fund«) will
develop 6 apartment blocks, each with 32 dwellings
in Polje 2, Ljubljana not
far away from already realised similar project. The
apartments will be used for social tenant purpose.
All 6 blocks will be designed in low energy standard
and will be equipped with hydro sensible ventilation
systems. Each of six blocks will have centralised
energy production for heating and tap water. In one
demo block, a thermal solar system and a PV solar
system with 12 kW power will be designed.
Small living units at Pipanova Road will be realised in passive standard.The system is divided to collective and local energy segment. Collective part is composed of ventilation system with earth heat exchanger. Local heating will be carried out with local electric heaters for room heating and tap water. On the roof will be mounted a PV collector array with 14 kW peak power covering common electricity costs for running lighting, ventilation system and earth heat exchanger. Tenants will be not dependent on other common costs, they will pay only for space heating and for other individual electric supply costs, such as tap water and cooking.
Additionally, about twenty single family houses in low energy or passive standard will be realised. Projects presented at the exhibition will demonstrate a wide scale of techniques like quality thermal insulation, windows and doors, ventilation systems with high degree of heat recovery, earth heat exchangers, heat pumps, thermal solar systems and use of waste energy and will be selected in due time in order to select best examples.
For more information please see www.rebecee.si.