Sustainable
energy actions
in four cities
– a documentation
Malmö • Sweden
dublin • ireland
tallinn • estonia
hillerød • denmark
SECURE
The Western Harbour
– industrial site to sustainable city area
The Bo01 area in the Western Harbour was built and completed for the European housing expo in 2001.
The site – »City of Tomorrow« – shows a multitude of architectural solutions, forming an exciting and sustainable
urban environment. Measures for a renewable energy supply and increased biodiversity in combination with other
initiatives create a strong sustainable concept for the whole area. The area is located by the sea, within walking
distance from the city centre.
Renewable energy sources
The new city district is exclusively provided with locally produced energy from renewable sources. Sun,
wind and water form the basis for energy production
together with energy from local waste and sewage. A
large percentage of the heating is extracted from the
sea and from an aquifer system, a natural water storage
in the bedrock.
Electricity is mainly generated by wind power and to
a minor part by photovoltaics. The area has its own
windmill about one kilometer away. Bio gas is extracted from waste and sewage from the area and it is
returned to the district via the city’s natural gas system.
The solar collectors and photovoltaic systems, including those on private properties, are operated and managed by an energy company in order to ensure high
maintenance and operation standards.
Linked to existing systems
The demand for 100 % renewable energy means that
there must be a balance between production and
energy use on an annual basis. Energy used in the area
should, at some point in time, be produced there.
The new electricity grid and district heating network
is linked to the existing systems of the city in order to
bridge the time-lapse between the production and the
use of energy, without the need for specialised equipment for energy storage. The city’s system will be used
as an accumulator and as a reserve supply.
Minimising energy usage
The target for average energy use on the properties is
not to exceed 105 kWh per square meter gross room
area annually. This includes all energy related to the
Malmö • Sweden
property – heating and hot water as well as electricity
for households and maintenance.
Household equipment, lighting and other electric
installations should be the most energy efficient on
the market. To minimise heat loss, it is important to
reduce the thermal transmittance of the buildings.
Generally, this is made by increasing the thermal
insulation of the buildings and by installing energy
efficient triple glazed windows with low emission
coating.
•
…a different
perspective today,
with new ideas
for the future
The efforts to make the Western
Harbour an interesting area, both
architecturally and ecologically, have
been successful. It generates a large
number of study visits from all over
the world, and it has become a popular recreational area for the citizens
of Malmö.The experiences from the
process will be used when planning
and creating new city areas.
On the sunny side – making the most of
sunlight at Augustenborg and Sege
In a city located as far north as Malmö, you would not expect sunlight to be an energy source of any significance.
Modern, efficient solar technology makes it possible, though. And while Malmö may not rely on solar energy alone,
it is certainly a great way to complement other renewable energy sources. Recent additions to Malmö’s growing array
of solar panes include the largest solar cell facility in Sweden.
Solar cell facilities are scattered throughout Malmö and
they are a familiar sight in the Western Harbour. The
sum total of solar panels in Malmö is currently 2.350 m2
– a number that will increase dramatically in the years
to come. Malmö will become “Solar City”, a meeting
point and knowledge centre for anyone interested in
the potential of solar energy.
Augustenborg – the EcoCity
Since 1998, several environmental projects have taken
place in the neighbourhood Augustenborg. In close
cooperation with the inhabitants and landlords, Malmö
stad has developed the EcoCity – a socially, economically and environmentally sustainable living area.
The results? So far, Augustenborg is well on its way to
become an attractive, multicultural neighbourhood. The
turnover of tenancies has decreased by almost 20 % and
the environmental impact has decreased to a similar
degree. A new project between the city, Malmö University, the energy company E.ON and the city housing company MKB has led to a 450 m2 solar thermal
plant and 100 m2 photovoltaics producing hot water for
the district heating system and electricity. The football pitch has been fitted with underground piping to
pump solar heat out of the ground all summer and the
residual heat from the ground all winter, producing hot
water for the district heating system
Sege Park – an architectural statement
The solar panels are a striking addition to the otherwise
quite anonymous buildings. The wings are made out of
1.250 square metres of solar cells that generate upwards
Malmö • Sweden
of 166 kW, making it the largest solar cell facility in
Sweden. The installation was made at Sege Park where
an old hospital area is being devloped into a housing area. The neighbourhood will be turned into an
ecologically sustainable part of the city, supplied with
renewable energy as far as possible. Heating will be
produced with sun panels and bioenergy, and the electricity will come from wind and solar cells. ...if we can
generate solar
energy in Malmö,
anyone can do it
Solar City Malmö was started
in 2007 as a cooperative initiative
between Malmö stad, Energikontoret
Skåne and Lunds tekniska högskola. Solar City Malmö will work
for an increased use of solar energy
in Malmö and Region Skåne, participating in making it the leading
region of the Nordic countries in
solar energy.
A new view of sustainable construction
The Western harbour is home to two newly constructed buildings, each with a different approach to a
more sustainable view of how we design and use our
buildings. Both buildings take into account the long
life cycles and the impact even small changes in energy
consumption will have over the years to come.
World Trade Centre
The buildings at WTC have large windows, compared
to several other new office buildings. But still, the
energy consumption is estimated to be 15 % lower than
the stringent standard regulation. How is this possible?
To create an energy efficient office building with a
good indoor climate, a comprehensive view is needed
where the building is seen as a system comprised of the
building, technical installations, activities and users.
The building has demand controlled ventilation, night
cooling with outdoor air, presence sensor to switch
of the lighting and efficient movable solar shading in
a double skin facade to reduce cooling and to control
daylight. Regarding energy consumption, the Kyoto
Pyramid has been used in the design process. The most
important factor is to minimize the need for heating
and cooling, then the need for electricity, to use solar
energy, to clarify and regulate energy consumption and
then, at the top of the pyramid, to choose the right
heating source. The need for heating is minimized by
Malmö • Sweden
A new perspective on construction
– Stanlyhuset and World Trade Center
One of the buildings has large windows, but still manages to lower the energy consumption.The other is made out
of pre-fabricated insulated cassettes, making it a passive house that needs virtually no heating at all.
Two different approaches towards the same goal – minimizing the need for heating.
good insulation and airtightness. All non-transparent
areas are fully insulated and the windows have low
U-values. An effective use of the increased amount
of daylight brought by the large windows lowers the
electricity consumption for lighting.
Stanly – the passive house
The newly constructed Stanly house in the Western
Harbour area is built as a passive house, which means
that virtually no heating is required.
But there are other advantages to a building technique that uses pre-fabricated cassettes.
• Moisture-proof – a large part of the construction is
made indoors.
• Good insulation makes the building energy efficient.
• Soundproofing cassettes makes apartments quiet.
• Few load bearing structurals in the building combined with high ceilings makes the building easier to
rebuild for other purposes.
...passive heating is a
sustainable solution for
many new houses
Building a passive house results in an ultra-low
energy building that requires little energy for space
heating. Passive design is not an attachment to the
architectural design, but should rather be seen as an
integrated design process with the architectural design.
A great way to minimize energy consumption!
York Street Apartments
– 66 new homes in York Street Dublin 2
The redevelopment of York Street apartments, off Stephen’s Green, is a very important and high profile housing project for
Dublin City Council.This scheme was designed by Sean Harrington Architects who address issues of environmental sustainability in building design.This best practice scheme was awarded funding under the House of Tomorrow programme for its
low energy design, energy efficient and renewable energy features.
Low Energy Design
The York Street Apartments are designed to address
issues of environmental sustainability in building design.
Low energy design helps combat fuel poverty through
a well insulated building fabric and a highly efficient
heating system combined with solar panels. A target of
a 51 % reduction in energy and carbon dioxide and a
70 % reduction in running costs was set at the outset of
design.
Community Heating System
The redevelopment includes 66 new council apartments arranged in five blocks with communal spaces
on the ground floor. Each block has a group heating
system which provided space heating and domestic hot
water. The system is powered by solar thermal panels
with back-up from highly efficient condensing gas
boilers at peak loads.
Energy Conservation
The development has a highly insulated building fabric
and passive solar gains are maximised through south
facing glazed balconies. Building materials with a low
environmental impact were used where possible.
Green Roofs
Green roofs are also incorporated helping to reduce the
vegetated footprint that was destroyed when the original buildings were constructed. Green roofs have many
advantages such as aesthetic and the mitigation of storm
water runoff. Special attention was also given to the reuse of masonry and timber from the existing building.
Building Energy Rating
The Building Energy Ratings (BER) of the York Street
apartments range from a3 to b2. These are excellent
ratings and can be mainly attributed to the high level
of thermal insulation, the community heating, attention
to detail in reducing thermal bridging and the use of
increased south facing glazing and reduced north facing
glazing.
dublin • ireland
halogen or incandescent bulb representing a saving of
40 watts per bulb. Each signal head operates 24 hours
per day every day of the year. With always one of the
bulbs illuminated the wattage saving thus results in annual savings of 350 kWh per signal head. For 400 signals
this represents an annual saving of 140 MWh and a saving of 1,400 MWh over the ten-year life of the LEDs.
Traditional Halogen Bulb System
Dublin City Council Road and Traffic department is
responsible for the safe operation and maintenance of
680 sets of traffic signal installations throughout the city.
Traditionally, the Council has been using halogen bulbs,
which consume 55 Watts of electricity per bulb.
The LED Signal Technology
The new traffic signal bulbs use Light Emitting Diodes
(LED), rather than incandescent halogen bulbs. The
LEDs are small individual electronic lights, which are
energy efficient and have a very long life. The signals
can comprise of either a multiple array of LEDs over
the viewing area of the signal head or a cluster of high
intensity LED’s with an optical diffusion system.
CO2 Savings
In 2004, 1 kWh of electricity was responsible for 651
g of CO2 (Energy in Ireland, 2005). The above energy
saving thus represents an annual saving of 91 tonnes
CO2 and a saving of 910 tonnes over the ten-year life of
the LEDs.
Cost Savings
The energy cost saving for each signal head amounts to
38.50 per head (this is at Average Unit Price of 11 cents
per kWh).There would also be a reduced relamping
and maintenance cost of € 42 per signal head giving a
total annual cost saving for the € 400 signal heads of €
32,200. Over the lifetime of the LEDs a total saving of
€ 322,000 is expected.
Energy Savings
The energy saving for the LED signal is significant. The
LED signal bulb uses approximately 15 watts of power,
compared to the average 55 watts of power used by the
Dublin City Traffic Signal
Conversion Project
Traffic signals are a necessary integral part of any city street network and provide a safe means of regulating and controlling the flow of vehicles, cyclists, trams and pedestrians. Between the years of 2001 and 2003, Dublin City Council’s Road
and Traffic department installed several test sets of LED signals. In 2004, in consultation with ESB Customer Supply and
Sustainable Energy Ireland it was decided to replace approximately 400 signal heads at numerous junctions as part of a set of
urban rejuvenation projects underway throughout the city centre.
Workplace Travel Plan
– Strategies for Sustainable Transport
Codema is working on the implementation of a workplace travel plan for the Dublin City Council offices with the mobility
management company VIPRE Ltd.Workplace travel plans will have benefits for both employees and employer and will in a
wider context contribute to sustainable city development.
Travel Plans
A Travel Plan is a Transportation Demand Management
tool which reduces car trips, improves access, provides and promotes sustainable travel alternatives, and
makes more efficient use of existing transport resources
and infrastructure. This is usually delivered through a
strategic combination of “push and pull” measures, ie.
policies and incentives.
How Travel Plans Work
Travel Plans work by focussing on the user at the centre
of trip generation and by inducing travel behaviour
change within the existing transport context. The aim is
to enable users to make considered choices in advance
of choosing ‘mode to travel’ by removing the barriers
to using sustainable modes and by filling any transport
‘gaps’ as applicable. Travel Plans will often redress an
existing imbalance where the barriers (physical, informational, perceptual) to using sustainable transport are
greater than those to using cars.
Travel Plans – Progressive Approach
Travel Plans are increasingly receiving international
recognition as a more effective and sustainable approach
to transportation planning. As workplaces constitute
the main drivers of “rush hour” traffic congestion,
Workplace Travel Plans can contribute to congestionreduction and sustainable city development. Travel Plans
are low-cost transport interventions that have proven
effectiveness, at local and wider-area levels.
Benefits
Travel Plans are low-cost win-win interventions that
benefit end-users, employers and civic authorities. The
help reduce CO2 emissions from fleet, business travel or
commuting, reducing traffic and noise emissions in the
community. A more sustainable workplace is created
through improved corporate social responsibility and
improved recruitment and retention by caring for staff
travel, a healthy workforce and reduced absenteeism
through active commuting
dublin • ireland
residential and commercial uses. The advantages of a
district heating system are
• high efficiency
• simplicity of the system
• flexibility of energy source.
• localised control of pollution
The first phase of Dublin City’s district heating system
will supply the area at Spencer Dock and during the
first two years gas-fired boilers will supply the heat.
It is envisaged that subsequently a proposed waste to
energy facility at Poolbeg will provide the base load.
The plant will be a combined heat and power plant and
as discussed above will providing all the advantages of
onsite power and heat efficiencies. However the district
heating system is not dependant on the WTE plant.
Combined Heat and Power
Combined Heat and Power (CHP) or cogeneration is
the most efficient way to generate both electrical and
thermal energy in traditional fossil fuel thermal generation plants. During the electrical generation process
heat is naturally produced, this is often referred to as
‘waste heat’ and released either through heated water
(into Dublin Bay) or as steam into the atmosphere
via cooling towers. CHP applies the logic that this
‘free’ heat should be utilised, therefore increasing the
efficiency of the energy producing plant. This heat is
best distributed through a district heating system. There
are many examples of smaller CHP systems in Dublin
such as St Vincent’s hospital, Trinity College and Dublin
Civic offices.
District heating
District heating is a system employed to distribute heat
that has been generated in a centralised location to both
District Heating
and CHP
–The Dublin District
Heating Project
The City Council has carried out a feasibility
study on the implementation of a citywide districtheating network and developers in the Dublin area
have been approached on the benefits of district
heating and have been encouraged to consider
district heating for their developments.
Wind Power
Father Collins Park
Dublin City Council held an international design competition in 2003 to seek a park design for a flagship urban park at
Father Collins Park, Donaghmede.The re-designed Father Collins Park is intended to be a park for all, a place of both
active and passive recreation, with something to offer all ages within the community.The park was designed to the highest
contemporary standards including landscape, art and architecture as dynamic elements.
Contemporary Design
In September 2007 work commenced on Dublin’s
newest Public Park in the ‘North Fringe’, and is expected to be completed in spring 2009. The North Fringe is
an area of rapid growth and population increased with
over 15,000 units built or proposed (35,000 people).
Funding for the park has come from a levy on these
developments.
!
Main Features
The park is dominated by the central axis features of
the lake, promenade, wind turbines, water features and
viewing mound. The perimeter planting encloses the
large open space of the park with circulation and recreational facilities distributed around the central axis.
Wind Power
A number of sustainable features are included in the
design, providing environmental benefits and an educational aspect to the park. The electrical energy needs of
the park will be met by the five wind turbines located
along the promenade. The loading will include water
features, lighting and electric maintenance vehicles. The
wind turbines will play an educational role whilst creating a memorable visual image and identity for the park.
dublin • ireland
Renewable Energy
Vartry Waterworks contributes up to 85,000 m3 daily
to Dublin’s water supply. A reservoir of 11 million m3 is
retained by a 20 m high earthen dam, from which the
filter beds are fed. An innovative 90 kW water turbine
is been combined with a water flow restrictor in an
integrated unit that controls the flow of water (by gravity) from the reservoir into the filter beds. At the same
time, it generates enough electricity to meet the 50 kW
energy needs of the Waterworks and exports the excess
electricity into the grid.
Innovative Turbines
The innovative element in the design of the water
turbine is integration of a wicket gate to control the
flow of water within the turbine itself. To reduce the
flow of water to the filter beds the wicket gate can be
partially closed by an external control. The mechanism
is designed to extract the maximum power from the
water as it drops through a head of approximately 10
meters from the reservoir level. In the past, there was
a simple flow valve, without energy recovery – so why
not extract the free energy?
Renewable energy at waterworks
Hydro Power at Roundwood reservoir
•
An innovative design of water turbine powers the water treatment works and exports the excess electricity into the
national grid.This reduces Dublin City Council’s own carbon footprint by 24 tonnes CO2 per year, saves 45,000 per
year and contributes 0.2 % renewable energy for the municipality’s own energy use.
The renovation project of a model
building in Tallinn
In the autumn of 2006 a competition was organized by KredEx under the title of “Make your apartment building
more energy efficient”.The reconstruction project of the selected apartment building at Paldiski Road 171 has been
completed. Financially, the apartment building was supported within the framework of BEEN (Baltic Energy Efficiency Network for Building Stock) project.
...and the winner is...
Paldiski Road 171!
In May 2006 a competition was organized under the
title “Make your apartment building more energy efficient” within the framework of the European Union
INTERREG IIIB program’s project “Baltic Energy
Efficiency Network for Building Stock or BEEN”.
A total of three applications were submitted to the
competition — all of them apartment buildings from
Tallinn.The winner of the competition was a building with 59 apartments at Paldiski Road 171.
tallinn • estonia
Maximum Energy Efficiency
According to the agreement, during the period of
2006-2007 the roof, front and balconies of the apartment building were reconstructed and all the windows
and balcony-doors were replaced. The heating system
was rebuilt from a one-pipe-system into a two-pipesystem; also an individual cost accounting system was
installed. The aim of the reconstruction was to gain
maximum energy efficiency.
A new start
The apartment building looks brand new. We expect to
witness a significant energy efficiency, in other words
saving on heating expenses, and hope that the model
building will motivate also other owners to reconstruct
their houses as a whole. At the end of the project, a
contentment survey was carried out among the resi-
dents, which showed that the people are satisfied with
the reconstruction works and the new quality of the
building.
Financing
The aim of the BEEN project was to find one apartment building in Estonia, which would be prepared to
carry out complex reconstruction works in order to
gain maximum energy efficiency. The total cost of the
project, together with designing, project management
and building inspection, was 6.3 million kroons. Paldiski
Road 171 apartment association financed the works
out of its own funds with 580.000 kroons and also took
a loan from Hansapank in the amount of 4.2 million
kroons. The state supported the apartment building
with half a million kroons and the BEEN project with
1.017 million kroons. 75 % of the BEEN project grant is
covered by the European Union.
Low energy building in Ulleroed
Back in 2005 the municipality of Hilleroed started to plan a new part of town called Ulleroed.The idea is to make a green
and sustainable town, which produce the energy that is consumed. It is located on farmland, but nature has been restored
with a lake and a small stream, meadows and forest. It is not only a new part of town, but also a demonstration project,
where citizens can see how low energy construction can be done.
The town of Hilleroed experiences rapid growth.
Active building sites are scattered all over the towns –
industrial as well as domestic. This development creates
environmental challenges, but it also raises the possibility to implement environmentally sound energy solutions, e.g. low energy buildings and renewable energy
sources.
In 2005-06 there was a lot of focus on low energy
construction in Denmark, as the national building
regulations were changed in the area concerning energy
demands in buildings. Suddenly energy consumption
of buildings was on the agenda in the construction
industry. However, as Hilleroed experienced, talking
about low energy buildings was a long way from building them. To enhance low energy building, some of the
land which was owned by the municipality, was sold in
a new way: The buyer had to sign a contract that told
him to build low energy houses with a maximum energy demand of 50 kWh/m2/year, including energy for
hot water, ventilation, electricity to heat pumps etc.
The land was sold in 2007 to a company that would
build approximately 6.600 m2. Even with the energy
demands in the sales-contract, the price we got for the
land was more than we expected.
In spring 2008 the construction work began and the
construction company plans on having the first apartments ready at the end of 2008. The buildings will
have a heat loss of approximately 20 kWh/m2/year,
and nearly the same energy demand for hot water.
This energy demand is so low that the building owner
doesn’t want to be connected to the district heating net.
Instead the houses are built with ground heat pumps,
and a large part of the electricity for the heat pumps is
produced in a PV installation. The company calculated
that if they invested in these heat pumps including PV,
the cost of ownership over 30 years was well below the
costs of district heating, even though the cost of district
heating in Hilleroed is among the lowest in Denmark.
Construction costs at day zero are higher than normal,
but the monthly costs for the inhabitants are lower from
day one.
hillerød • denmark
Sustainability has been made an integrated part of the
“Strategy for the municipality of Hilleroed 2020”. This
strategy sets up a number of targets for the future development of the municipality. The politicians in Hilleroed
are very aware of the climate change and the need for
reducing energy consumption and using “green energy”. Thus, several targets in the “Strategy 2020” focus
on sustainable urban development and reduction of the
energy consumption.
The new “Energy Action Plan” describes how the municipality of Hilleroed can increase renewable energy
production and reduce local energy use. The action plan
focuses on these topics:
• Reducing energy use both in the public area and by
citizens, together with minimising energy loss on distribution of district heating
• Promoting renewable energy (Solar collectors, ground
heating, heat pumps etc)
• Energy effective construction, in both public and
private buildings.
• Reduced CO2 emission and pollution from transport
(biofuel, town planning and public transport)
• Increased waste recycling and a sustainable recycling
station
Still, the energy action plan only makes a difference
if we are prepared to “walk the talk”. In Hilleroed we
started implementing those ideas even before the action
plan was quite finished. The visible results are:
• A solar heating system with 3.000 m2 solar collectors
by Ulleroedbyen
• Low temperature district heating has been implemented in several places e.g. in Ulleroedbyen
• Production of both electricity and heat based on
biomass
• Low energy street lightning
• Demands for building low energy houses on part of
the land owned by the municipality.
• The municipality’s own buildings will also become
good examples. We have deposited two million DKR
pr. year for energy improvements in our own buildings.
With the initiatives in the Energy Action Plan we hope
to reduce the growing energy consumption and increase the amount of renewable energy, thus reaching a
sustainable development on energy use in the municipality of Hilleroed.
The municipality of Hilleroed
Hilleroed wants to become a “green, healthy and responsible
municipality”. Essentially we want to create a sustainable
development, in which we´ll protect environment and nature,
increase health and promote “livability” by strengthening the
citizens possibility to influence and take responsibility for the
development.
The Hilleroed Plant
This plant was built in the late eighties, but it is still one
of the best plants in Denmark. The plant is rather small
compared to many of the coal fired plants in Denmark,
and the heat capacity is only around 70 MW. The plant
also delivers heat to one of the towns next to Hilleroed.
In connection to the plant there are five peakload heatboilers, which produce heat at the coldest days in the
winter, and when the larger plant is being maintained.
Four of the heatboilers are fired with gas and one is
fired with woodpellets.
The combined heat and power plant have had some
difficulties in producing the needed amount of heat, as
the two towns receiving the heat have expanded rapidly
since the plant was build.The district heating company
(owned by the municipality) made a new strategy in
2005. The vision is to build a new CO2 neutral heat
production capacity every time a larger new town area
is planned. In 2005 the woodpellet heatboiler was built
and used as a peak load boiler, in 2008 the plant is
changed to a full load heat plant.
In 2008 the district heating company constructs 3000
m2 solar collectors in connection to the new town area
Ulleroedbyen. The solar plant will have a peak effect of
1,5 MW and a yearly production of 1.600 MWh heat.
This equals the heat demand from the Southern part of
the new town area. The solar plant is built next to one
of the larger roads leading into Hilleroed, just where
the town starts.
The district heating company also supports local solar
collectors on buildings, which are connected to the
district heating plants. Even though the strategy is quite
new, custumers are already combining solar heat and
district heating when they are building new houses. An
example is some four storey blocks that have 200 m2
solar collectors on the roof.
If the trend continues the next goal will be that 20 %
of the district heating distributed in Hilleroed is CO2
neutral. This goal can be achieved already in year 2010,
if the energy action plan that is finished in 2008, has the
forecasted effect.
hillerød • denmark
Sustainable district heating in Hilleroed
In Denmark most buildings are connected to a district heating system. Most of the district heating in Hilleroed is produced on a gasified combined heat- and powerplant. Here, a number of interesting actions are taken to minimise energy
loss and to maximise efficiency.
Idea Box
One of the breaking news by the district heating
company in Hilleroed is that most new town areas will
get district heating with temperature of 60/30° C, and
furthermore the pipes will have a maximum of insulation. Thus it is possible to minimize the energy loss to
the surroundings to 10 % of the heat that is distributed
in the pipes. The normal temperature in the old part
of Hilleroeds district heating is 70/40° C, and these
pipes had average insulation when they were made.
The temperature loss from this old part of the town is
about 20 % of the heat that is distributed. If this part
of the town becomes low energy buildings, then the
low energy demand would increase the heat loss. The
heating company is therefore forced to change dimension criteria, if they want to be able to compete with
local heat production in say 10 years. The local energy
production has no heat loss to the surroundings.
Saving energy on existing buildings
The municipality of Hillerød has realised four energysaving projects on public buildings in 2007.
Egely is a nature visitor centre with nature guides and animals, located in the forest outside Hillerød. Children from
eight kindergartens visit Egely on a regular basis. In 2007 Egely took a large step towards becoming CO2 neutral, as the
heat is now produced by a bio-oil heatboiler and the power is provided by solar panels.
The bio-oil heatboiler was chosen instead of a woodpellet heatboiler, as the bio-oil heatboiler needs less
care. Also the bio-fuel can be easily provided from a
truck, which can fill up the tank through an opening
in the wall. The solar panels will supply approximately
3.300 kWh/year. Egely also has plans of building a
windmill in order to become CO2 neutral.
The bio-oil heatboiler and the solar panels save 100.000
kWh and 17.818 kilo CO2 per year. The cost was
386.000 DKR. The annual savings are 20.000 DKR,
and the payback time is approximately 19 years.
Micro-plant with combined heat and power at
Harløse School
Harløse school is a special school for children with
autism. Harløse School has built a combined powerstation and heating unit. This unit is supplied with two
heatpumps. Together the micro-plant and the heatpumps cover the heatcomsumption of the school. The
micro-plant and the heatpumps save 25.000 kWh and
32.655 kilo CO2 per year. The cost was 474.000 DKR.
The annual savings are 25.000 DKR, and the payback
time is a little less than six years.
Ventilation and central control and monitoring
system at Støberihallen
Støberihallen is a municipal institution which produces
and organizes cultural arrangements. Støberihallen has
installed a new ventilation system combined with a
central control and monitoring system, which makes
it easy to control and regulate the heating and ventilation systems, thus saving energy. The indoor climate has
also been improved by a better circulation of fresh air
based on measuring the level of CO2 in the room. The
new system saves 16.000 kWh and 10.592 kilo CO2 per
year. The cost was 145.000 DKR. The annual savings are
21.000 DKR, and the payback time is a little less than
seven years.
Condensing boilers at Alsønderup School
Alsønderup School is located in a village outside Hillerød. Alsønderup School has had three new condensing
boilers installed instead of the old boilers. The difference in the energyconsumption has been huge. The
new condensing boilers save 225.000 kWh and 40.091
kilo CO2 per year. The cost was 347.000 DKR The annual savings are 115.000 DKR and the payback time is
only three years!
hillerød • denmark
Exhibitions
In spring 2008 we organised a climate exhibition as
part of the Secure project. The exhibition was located
in the shopping mall. It was composed of 15 pillars with
pictures and text about the consequences of the climate
changes in Denmark as well as the rest of the world –
and ideas on how to save energy. Two local schools also
contributed to the exhibition with their interpretations
of climate changes and their effect on our future. At
the opening ceremony the mayor of Hilleroed served
a huge “climate cake” with melting icebergs and polar
bears on top. About 500 people got a piece of the climate cake, 100 of them filled out questionnaires about
the climate changes. The climate exhibition was on
show in the shopping mall for two weeks. Before the
exhibition all schools in the municipality received Al
Gore’s movie “An inconvenient truth”, in order to put
climate changes on the schedule.
Involving the citizens
In order to decrease the CO2 emissions we must
involve the citizens and change their attitudes as
well as their behaviour.The municipality tries to
do so by teaching the citizens in Hilleroed about
the connection between their behaviour regarding energy use and the global warming.We also
provide ideas for energy-saving in everyday life.
The aim is to make the citizens realise that they
have the responsibility and the power to make a
difference.
The SECURE project
SECURE
The SECURE project aims to develop strategies to mainstream pilot and demonstration
projects. The seven partners in the SECURE
project will establish energy action plans, implement them and develop standards and tools
for spreading knowledge of sustainable energy
practicies to all of Europe. The project, which
runs from 2006 to 2008, is coordinated by the
City of Malmö.
You will find more information about
SECURE on www. secureproject.org