Tallinn City Government
Contact:
Kadri Kallas, REBECEE Project Manager
Kadri.Kallas@tallinnlv.ee
Vabaduse väljak 10, 10146 Tallinn, Estonia
Phone: + 372 640 45 02 Fax: + 372 640 45 01
22.5.2009
- Tallinn/Estonia
The opening ceremony
of the Tallinn REBECEE building exhibition took place
on 22th of May in busiest shopping centre in Tallinn,
Viru Keskus. The REBECEE project partners from Germany,
Holland and Sweden took part on the opening ceremony
of the exhibition. Vice Mayor of Tallinn Eha Võrk
opened the exhibition, the speeches were also made
by Head of Tallinn City property department Einike
Uri, Mayor of Kiel Peter Todeskino and REBECEE project
coordinator Peter M. Friemert.
The 10-day period
in Tallinn, Viru Keskus, was the introduction to the
exhibition and gave the general public possibility
to learn about renewable energy technologies and energy
saving and get information about Tallinn REBECEE exhibition
projects.
The main idea of the exhibition was - The sun! Solar
energy! Active and passive solar energy!
In the exhibition the information about solar energy,
energy efficiency, passive houses and Tallinn City
Projects were presented.
One focus of the exhibition
was on the passive house and passive house building
process. The passive house planning, location and
architecture, walls and isolation, doors and windows,
roof, heating and ventilation were introduced. This
was the most popular subject of the exhibition and
many visitors were interested to learn more about
the passive house technologies and passive house projects
in Estonia.
The important part
of the exhibition was the introduction of the Tallinn
City Projects, Two study tours took place and gave
the public and also the REBECEE project partners the
chance to see the Tallinn REBECEE projects.
The corner for active solar energy use was introducing
samples, panels, water heaters, working models and
"how everything works" diagram. It was attractive
to people since many visitors have never had a contact
with renewable energy components. It gave them opportunity
to see exactly how they work and ask questions.
Practical part of
the exhibition gave the answers to many visitors and
who found this still not to be enough were able to
register themselves to the renewable energy seminars
and workshops what are taking place all through the
exhibition time.
The workshops are addressed to the different target
groups - municipal officers, craftsman, architects,
planners, trade companies, investors, civil servants
and key actors. First seminars have been already taken
place and have attracted a vide audiences.
The closing event of the Tallinn REBECEE Exhibition
will take place on 18th on June in Tallinn City Property
Board.
Otepää
- Passive house standard hotel
The horseshoe-shaped hotel fits into
the South-Estonian hilly landscape near a golf course
in Otepää. The building is planned to achieve
the passive house standard although the somewhat unusual
geometry of the building made the planning phase more
complicated and more attention had to be drawn on
specific details like avoiding thermal bridges in
the building envelope. Elements like the green roof
and the solar panels influence the first impression
of the building but are also important parts of the
energy concept.
Hot water – solar heating system installed for
the production of hot water (and room heating). 34
solar collectors (75,14 m2) placed on the roof and
on the ground facing South, tilt angle 45 deg., 5
m3 hot water storage tank with electric backup heating.
A more detailed description of the solar heating system
is given afterwards.
Valga
- Kindergarten reconstruction to passive house standard
The existing kindergarten seen on
the pictures below was built in the 1960´s,
a two storey building with an additional one storey
kitchen and dining area. The building is situated
in a residential district of town Valga in South Estonia.
According to given data from the years 2003 –
2005 the average heat demand of the building was 253
MWh/year which gives us the average specific heat
demand of 280 kWh/m2 per year.
The goal of the reconstruction project was to increase
the floor area of the house from the existing 901,
4 m2 to 1040 m2 by adding a second floor to the one
storey building, to fulfil the requirements of a passive
house, which means reducing the heating energy demand
to 15 kWh/m2 per year and to install a solar heating
system in order to use solar energy for the production
of warm water and for room heating.
Room heating – solved with compact heat pump
units, that recover heat from the ventilated air and
heat the fresh air when necessary with water-to-air
heat exchangers for using solar energy or energy from
the district heating system.
Hot water – solar heating system installed for
the production of hot water (and room heating). 28
solar collectors (71,96 m2) placed on rooftop facing
South-Southeast, tilt angle 55 deg., 4 m3 hot water
storage tank. A more detailed description of the solar
heating system is given afterwards.
Kiisa
- Apartment house in passive house standard
The three storey building will be
situated in Kiisa, Harju County. It is planned as
a multipurpose building, having a public library and
a grocery store on the first floor and apartments
on the second and on the third floor.
The block-shaped geometry of the building gives a
good envelope area to internal volume ratio, which
together with the south facing façade gave
a good starting point to achieving the passive house
standard during the design process. The open building
site with no significant shading objects made it possible
to integrate a solar heating system for backup heating
and hot water production.
Room heating – heating through fresh air when
necessary with water-to-air heat exchangers for using
solar energy. Passive house compact ventilation units
in apartments.
Hot water – solar heating system installed for
the production of hot water (and room heating). 18
solar collectors (39,78 m2) placed on the roof facing
South, tilt angle 45 deg., 4 m3 hot water storage
tank with electric backup heating. A more detailed
description of the solar heating system is given afterwards.
Tartu
- Apartment house solar thermal collectors for water
heating
The apartment building in Tartu was
built in 2004, has 21 apartments and rooms used for
commercial purposes. The house is situated in the
central part of the town and is closely surrounded
and influenced by other buildings.
The goal of the project was to evaluate the possible
energy savings by installing a ventilation heat recovery
unit with a heat pump combined with solar collectors
on the roof for the production of warm water.
Room heating – hot water radiators, district
heating.
Hot water – solar heating system in combination
with a heat pump. 10 solar collectors (22,1 m2) placed
on the roof facing South, tilt angle 55 deg., 1 m3
hot water storage tank connected to the heat pump
and boiler. A more detailed description of the solar
heating system is given afterwards.
Social
housing unit in Tallinn / Kauge street 4
Two storey building with a basement
is designed with low disposition roof with outside
water outflow and Columbian-stone walls. Sustainable
ceilings are engineered with installable hallow panels.
Building scheme is L shaped. Capacity of the building
shape comes from need to separate different functioning
rooms.
Main entrance is planned between L arms.
Building has basement and invalid accessible lift
for easier movements between floors. To main entrance
is planned disabled road for easy access from outside
to the first floor.
To the basement are planned stockroom, laundry area
and rooms for laundry staff, sauna, conference room
and technical room. In one of the wings of building
is planned homeless shelter (living rooms, washing
area, rooms for medical workers, kitchen area, rooms
for social workers, house manager’s office).
In other wing will be a social house (sleeping places,
kitchen area, wash rooms and toilets). Near the main
entrance is planned supervision/guard room, hallway,
lift, stair case. On a second floor will be accommodation
for people with special needs (living rooms, sanitary
junction, kitchen, resting area for staff, washrooms,
stockroom for laundry).
Using renewable energy and energy saving technology
in ventilation system and heating.
An alternative heating supplier will be between basement
and first floor located water floor heating system
which is supplying air-water heating pump (16kW) with
energy. Heating pump’s outside part is located
on a roof and inside part in a basement’s heating
junction.
Inside part is connected with automatic system what
switches on the heating pump according to building’s
needs and shown parameters (in case the outside temperature
is too low house will be heated with the help of the
heating junction).
Energy saving steps will be used partially in a building’s
ventilation system S1/V1, S2/V2 (in blow and out blow
systems) heat exchanger according to efficiency 55%
and 49%.
Refurbishment
Mustamäe, Tallinn / Sütiste 45
Sütiste 45 Cooperative housing
establishing meeting took place 2nd of June 1999.
Panel building what is situated in Mustamäe was
built in 1972 and is a typical apartment block with
9 floors and two hallways. 7, 25 million kroons has
been invested in the building through many different
projects. Thanks to what has been attained, a remarkable
living environment and given buildings technical improvement.
Since year 2000 building has got gable roof together
with rain water drainage system, joint work in every
area in the house, all the walls have been isolated
with foam sheet (including balconies’ walls
and basement). All windows were changed in apartments,
basement and hallways. All balconies were renovated
with profile iron sheets. Sliding windows were installed
to balconies. Lifts been renovated and old main shield
have been replaced, renovated the hallways (removed
rubbish bins between floors), carried out refurbishment
in fire exits. According to demand the double apartments
got dividing walldoors.
Storm porches with a special project were built under
front door awnings. New letter boxes were fitted,
electricity installer and electricity shields were
renovated (according to a requirement), time switch
low lighting system was fitted to hallways and exits.
Were implemented the change of the plastic utility
water tubes when changing the mane water pipes together
with basements water pipes. Building it true neighbour
building’s basement for receiving dependent
water pressures. Renovation of the heating system
(radiators and basement’s water pipes) replacing
old pipes with plastic pipes together with thermo
regulator. To every radiator was installed Mesa individual
heating cost divider. Heat pump in thermo station
was changed to the one with energy saving regulator.
To the living space were installed Starman and also
STV cable TV and internet connection.
Building has 4343m2 of land were in near future is
planned underground parking spaces plus on a ground
a parking lot. Also is planned to build a garbage
house, children’s play ground and greenery.
With big renovation work has been achieved considerable
energy saving, thanks to what the last year’s
average heating energy cost was (despite of energy
prices going up) on heating ground only 3.71 kroons
per m2. Which means energy saving was 50% less than
7 years ago.
Due to large energy saving we were able to get the
bank loan for 5, 5 million kroons.
Sütiste 45 Cooperative Housing has been mentioned
even on Estonian Cooperative Housing Units national
forum for good economical results. Also the Sütiste
45 was recognize as the best Cooperative Housing and
Ragnar Kuusk as the best Cooperative Housing manager
in 2006 and in 2007 with best Cooperative Housing
renovation work.
Also in 2007 Sütiste Cooperative Housing received
a “Good Cooperative Housing” certificate.
In near future it is planned to improve house even
more to install the heat pump and also solar panels.
New
apartment building Kesklinn, Tallinn / Juurdeveo 19
The apartment building is situated
in Tallinn, on the corner of Juurdeveo and Keava streets,
which are just a few kilometers from the center of
the town. While being very close to an important street
Pärnu mnt, it is also situated far enough in
the heart of a calm and green city block, away from
the noise of the traffic.
The Juurdeveo 19 building has modern architecture
and fittings and houses a total of 85 apartments on
four floors above the parking floor, divided into
four staircases. The modern and compact apartments
range from one to four rooms and 25-85m² of net
surface. Many
of the first floor apartments have spacious secluded
terraces; the upper floors’ apartments have
either large or small (so-called French) balconies.
The basement floor holds storage spaces and an enclosed
parking lot for 54 vehicles. Another parking lot for
31 cars is situated in the enclosed yard. The L-shape
of the building, existing greenery in the form of
trees and lot boundaries ensure a cosily secluded
and safe inner yard. The yard holdsresting areas and
children’s playgrounds for the habitants’
recreation.
Besides the good architecture of the building, great
effort is made with the apartments’ interior
design where integrated solutions are implemented
with quality materials and modern methods. The multitude
of lighting solutions can be exploited comfortably
through the Smart Home intelligent control system
that offers an innovative way of controlling the heating,
cooling, security, lighting and other systems in all
of the apartments through an intelligent computer
system. This is a novel solution in apartment techno
systems.
Smart Home is an integrated and easily manageable
system of systems that covers the apartment’s
climate control (floor heating and cooling), (video)
surveillance, entry systems and lighting and enables
to monitor the electricity, water and heating expenses
in real time as well as to receive messages from the
house manager. As the advantages and virtues of so-called
intelligent buildings are quite imperceptible at first
sight and offer comfort and save expenditure foremost
during long-term use, such systems have so far been
used only in luxury private residences and high-class
offices, where the owner or investor is directly interested
in the usage of the building during its exploitation
period. But why couldn’t the benefits of modern
technology be a regular part of a cosy midtown apartment?
Juurdeveo 19 Smart Home solution’s heart and
soul for each separate user lies in a touchsensitive
screen, installed in every apartment, which allows
the user to view videos from surveillance cameras
situated in the garage, yard or at the front door,
in order to identify guests requesting access to the
staircase, turn the security on the apartment on and
off, adjust room temperature and heating and cooling
systems, switch and adjust apartments’ lighting
mode, observe utility expenses and much more (for
example, see what the weather is like outside). As
the system development is ongoing during the construction
of the building, the list of functions is not final
and can lengthen by new interesting possibilities.
Apartment
building Haabersti, Tallinn / Paldiski Road 171
The apartment building that is situated
in Õismäe, Tallinn is a typical flat-roofed
5-floor panel building with four stairways that has
60 apartments.
As the apartment building has been used for 25 years
or half of its expected life-time, the association
decided to refurbish the building in order to lengthen
the life-cycle, lower the maintenance costs and raise
the quality of life.
In June 2006 the first plan was ready – the
design of roof renovation together with the recommendation
of renovating the ventilation system. Additionally
the renovation design for the heating system was drawn
up, which prescribed to build the existing 1-pipe
heating system into a 2-pipe heating system, and the
reconstruction design for the front of the building.
Besides insulating the building (with 150 mm Styrofoam
sheets), the problem of glazing the balconies and
loggias with the frameless glass system was also resolved.
Also the design prescribed the replacement of depreciated
and not yet replaced windows of the apartments and
stairways, and the replacement of balcony and loggia
doors.
