Sustainable Building Competition: Re5 corroded koppargården by Glenn Pennings

Re5 Corroded Koppargården

BACKGROUND

A thorough analysis of the area shows that there is an immense disconnect between the city of Landskrona and the area of Koppargården (details in the images to the right) . There is clearly a great potential in this area due to Landskrona´s future development plan as the expansion of the new residential areas and the new transportation paths will leave Koppargården in an important spot (as seen in the first image), in between the north area and the train station and well connected by bus. Still, (as it can be seen in the third image) the functions currently present in Landskrona are mainly concentrated in the city center, leaving both Koppargården, the new areas and the outskirts with little to no function. The need for new commercial areas and an improved connection to the outskirts arises. At the same time the energy consumption of this million program area is much bigger than the current standards and an energy refurbishment is needed, both for ecological and economical reasons.

MOBILITY bus lanes proposed extension of bus lanes cycle lanes

GOALS & STRATEGIES

social nodes

n ca tio

at gr In te

Ec ce ur

opulation

so Re

Wast e

mal

Air Lig

lig

gy issi

ation

on s

En er

o o o o

Ener

gy G ener

green area

Assign functions a.o. community farming Amplify the distinction between public and private spaces Structure the courtyards Appropriate scale in the area

residental area distant future

Generate a suitable density Diversify the type of apartments Raise social standard Provide variety of residences

FUNCTION DISTRIBUTION restaurants public functions

REjuvenate the sense of identity (SOCIAL INTEGRATION)

e nc

industrial area

offices

ity

t ic he

lity bi la

ri c

o o o o

t es

tro

rba

lity

/A al

n Co

tu Dis

-u Land

Biodiversity

Re-Use

Ele

residental area close future

REplenish the urban fabric (URBANISM)

Qua

alit

ne rg

Ther

ural Nat ment viro En

e at

lity

ter

Ecolog y

ials

He at E

io n

tit

Rel o

Desig

Visual

ap ta

Ad Process

Diversity in P

In d o or Q ua

ation

c Relo

o o o o

Public Space

lity

Information

FUTURE DEVELOPMENT

Enhance and complement the current connections Utilize the existing node Provide social spaces Supplement the functions in the area

REdefine the green spaces (GREEN SPACES)

fety

y/Sa

rit Secu

Qua

eing

Control

cti

ra Inte

do ut

y om

lb el

str

o o o o

t uc

fra

y ilit

Lower heating and electricity demand Employ the possibilities for renewable energy Lower the embodied energy a m3 in the building

REconnection, copper as a natural conductor (TRANSPORTATION)

ces

o o o

Desig n

Cycle Life Cost

cti

Pro

Investment

fun

ial

ign

t en

Des

nce

id es

ity

rs ye La

ers

tru

Div

rge Cha

inte

Rent

rsit ve Di

rin ea Sh Re

n Qua lity

Energetic REfurbishment of the buildings (ENERGY)

Implement means for social integration Rectify the perception of the area Better the relation, functionally and socially, with the city Develop a higher employment potential

services (secondary) services (tertiary)

TRANSPORTATION MOBILITY cars & bus bicycle walking paths bus stop bicycle stop parking

URBAN DESIGN After analyzing the area of Koppergården, it was found that the most urgent problems in the area were the social problems. The bad reputation of the this area is in need of improvement, bring new potential to Koppergården in the form of economic, social and environmental development. The master plan is a result of solving the issues in the area and achieving our main goals. A new multifunction center is planned for the new Koppergården, (details about the center see charts on the right) as a node that offers new commercial and social meeting spots. As part of the solution the bicycle paths and pedestrian roads are reorganized in a way that enhances the connection between the community and the city. G

The green areas are reorganized, with a better distinction between public and private. To further increase the integration of the area back into the city, a new market space is planned in the central forest. L

G G

19 new buildings:

2,4,6,8,10,14,16, ..., 28,32,34, ..., 40,42

multifunction center, 42 green house, 34 row houses, 10,18,20 high quality apartments, 32&22,24,26,28 high & medium quality apartments, 2,8,5&7,36 new apartments for low income, 4,6,14,16, 38,40 existing apartments for low income, 1,11,12,15,....,41,43,45

1st level

PUBLIC E4

20 18

SOCIAL INTERACTION

First, the social interaction process benefits from the reorganization of public spaces, different levels of public area would be organized with different activities to improve the social interaction. courtyard meeting point forest & food market multifunction center (mainly commercial)

F1 24

1 38

roolf dnoceS

Secondly, by building high quality apartments and row housing for medium and high income people a mix of people is created which helps the social integration. These new apartments will be located among the low income buildings.

TIMEPLAN year 0

year 1

year 2

year 3

In the first year, it is recommend to first build residential and commercial segment(no.42) along the north west main road, as it shows the new identity of Koppergården for people passing. Then continue to build the inner forest part as the future weekly market place, also renovate the building no.5&7, and nursing home, no.27&29 which will serve as a pilot for the renovation method.

The second year construct the south west part, residential buildings no.22-28, and no. 38, no.40, along the main bicycle road in the future city planning, also start renovating the rest of the old buildings, and re-arrange the courtyards on site.

Third year start constructing the buildings inside the area, including row houses, no.10, no. 18 and no. 20 in the center, and the high quality apartments around. Also re-arrange the public space in our area.

The fourth year all new constructions should be complete along with the ronovations.

new constructions

ground constructions

finished constructions

new constructions

finished constructions

refurbishment buildings

ground constructions

new constructions

finished constructions

ground constructions

8200 m2 of PV panels are installed on the roofs of the new buildings on site,

25 23

28 5

27 17 19

21 24

18 15

PV panels

22 40

row house (high income) mix high & medium quality apartments mix middle & low income quality apartments

PV PANELS

2nd level

Scale 1:1000

existing buildings

3rd level

4th level

PRIVACY

courtyard meeting point forest & food market multifunction center (mainly commercial)

PUBLIC SPACE

COMMUNITY AND LANDSCAPE DESIGN A, farming land B, existing forest C, weekly market D, social meeting point(please see charts right get more detailed information) E, bicycle stop, waste collection room F, private garden for high income apartments G, main bicycle road, walking paths H, place for rest and leisure, Z, service for 22,24,26,28&32, such as laundry room, stores, and small convenient shops X, playground for children

more details about apartments type, investments, rent, etc. please see charts below, also attached report.

1,11,13,15, ..., 41,43,45

ROAD SYSTEM main road secondary road tertiary road

BUILDING 18 existing buildings:A 5

6 4

11 2 38 1

Investment costs 700,0

No. App Investment 40 14.35 MSEK 70 45.54 MSEK 84 54.75 MSEK 96 88.90 MSEK 43.50 MSEK

more details about payback, rent, numbers of residential, etc. please see attached the reports.

Type No. 22-28 Condominium No. 38 Rental No. 40 Rental No.1-45 Rental(Old)

Area No. App 2 12580m 152 2 2400m 32 2 3200m 40 2 42286m

more details about payback, rent, numbers of residential, etc. please see attached the reports.

Economy

Untitled-1 1

14456 SEK/m2 (Is reduced by 25 % for large scale projects) 220 SEK/m2 9 SEK/m2 (cost for electricity and heating after renovation) 3700 SEK/m2 based upon similar project 1100 SEK/m2 13806 SEK/m2 + 2.5 % +4% - 1% 1200 SEK/m2 71.98 MSEK

[MSEK]

The total investment cost and subsequent payback time was based upon average costs in Sweden and Landskrona. New construction cost – Maintenance cost – Operation cost – Work cost for renovation – Mean rent in area (before) – Condominium sales price – Increase in operations cost Increase in maintenance cost Decrease in rent income Mean rent (after) – Income from condominiums –

Investment 136.39 MSEK 26.02 MSEK 34.69 MSEK 215.01 MSEK

800 750 700 650 600 550 500 450 400 350 300 250 200 150 100 50 0

Type No. 2 Condominium No. 6&4 Rental No. 8 Rental No.10 Condominium No.18 Row houses No.20 Row houses No.36 Rental

Area 1800m2 3800m2 1700m2 1440m2 800m2 1120m2 1200m2

No. App 20 64 16 16 5 7 20

more details about pay back, rent, numbers of residential, etc. please see attached the reports.

Energy Concept

10 11 12 13 14 15 16 17 18 19 20

Years Cost

Income

Investment

Investment 19.51 MSEK 41.19 MSEK 18.43 MSEK 15.61 MSEK 8.67 MSEK 12.14 MSEK 13.01 MSEK

Sales

500,0

400,0

300,0

[MSEK]

Area 2598m2 4200m2 5050m2 8200m2 3000m2

636,1 636,1

600,0

[MSEK]

Type No. 5&7 Condominium No. 14 Rental No. 16 Rental No. 32 Rental No. 42 Commercial

Investment costs

Total investment costs

300,0 233,6

200,0

281,2

FUNCTIONS existing residential new residential new commercial (including convenience shops inside community) office, community center, services green house

281,2

233,6

200,0 100,0 0,0

58,6

43,5

100,0

43,5

58,6

3,7

0,0 New rental

3,7

New Condominium

Commercial area

The area is solely heated by district heating. To reduce the total consumption of energy Groundwater heat pumps are installed in the area which have a COP of 3.5. The coldest days of the year the district heating is still needed. By doing this the energy is shifted from heat to electricity, but due to the COP the amount of CO2 produced by the area is still lowered. The electricity is supplied by the same source as the district heating, a thermal power plant in the region that runs on waste. To further reduce the use of fossil fuels PV is added to the area. The amount was designed to fully cover the need during the summer months. The reasoning behind this is to not put too much strain on the grid, due to over production. Also because PV is developing rapidly and the prices are decreasing it could be beneficial to invest in PV again in a couple of years and then there is still room for more PV.

Renovation

15,5 15,5 Heat pumps

Total

Energy consumption of commercial area

Scenario A B

C D

Status The current situation After improving the thermal envelope / constructing according new standards After B and installing the heat pumps After C and installing the PV-panels

300 300

Energy B consumptionCof commercialDarea

250 250 Energy [kWh/m2/yr] Energy [kWh/m2/yr]

700,0

200 200 150 150

200 200

36 36 218 218

100 100 50 50 0

67 67

kWh CO2 Heat

39 39

205 205

0 0 kWh CO2

Electricity

37 37

0 0 kWh CO2

CO2 Heat

CO2 Electr

12/9/2015 9:05:49 AM

G G

Plans Building 25

EXISTING CONDITION, NO.25

The interventions in no. 25 are minimized, due to limitation set by the structural system and the current occupation of mainly young families. The alterations will be reduced to minimal reorganisation of the spaces inside the apartments and upgrading the common spaces. Besides, the comfort level will be enhanced by improving sunlight and daylighting. To increase the resilience in time, flexibility will be provided to be able to meet future demands and keep the high occupation rate.

Balcony

Bedroom

Balcony

Bedroom Living room / Kitchen

Bedroom

CONCEPT IDENTITY As a way of strengthening the identity of the different groups of blocks different minor landmarks will be added. Signs will be added in the crossroad to strengthen the sense of identity, and to improve pedestrian transit.

Bedroom

Living room / Kitchen WC

WC WC

REFURBISHMENT 1. The existing load bearing walls even as he room type and sizes will be preserved in building NO.25 (see black hatches below). 2. Reorganisation inside every apartment will occur in order to create a higher comfort and flexibility level. 3. Four existing balconies are relocated to outside of the envelope to maximize the amount of sunlight. Vertical transportation

Demolished walls

Living room / Kitchen

Living roo WC Bedroom

Bedroom

Living room / Kitchen

Balcony

Second floor

Constructed walls

A 0

Ground Floor

Ground floor

Balcony

SOCIAL SPACE

Bedroom

Courtyard

Bedroom Living room / Kitchen

Bedroom

Landmark, playground, rest place, etc. WC

Social meeting point

Bicycle stop Convenience shops Rest place Meeting point Recycling point (people take their waste, such as construction materials or food to the point and meet other people there)

Living room / Kitchen WC

WC WC Living room / Kitchen

Living roo

Ground Floor 0

Bedroom

Living room / Kitchen

Bedroom

Forest & weekly market

The central forest area will be reorganized to provide space for a weekly market. This will work as another tool for social integration, as it attracts people form the city while at the same time offers business opportunities and jobs to the community. This market will be in close connection to the commercial area, and will act as an attraction point in Koppargården. The residents will also be given the opportunity and space to grow food inside the area.

Second floor First floorFloor Common

Green space, normal time Weekly market, once a week

PRIVACY

Facade Building 25

Multifunction center

4th level

et er al)

Balcony

Area 600 m2 200 m2 400 m2 300 m2 600 m2 100 m2 100 m2 100 m2 100 m2

Supermarket Restaurant Café Repair store Systembolaget Speciality food shop Hairdresser Pharmacy Second hand store

3rd level 2nd level 1st level PUBLIC

Common Floor 0

apartment type

WEEKLY MARKET

amount

target group

area

120 m2

current inhabitants

90 m2

current inhabitants

90 m2

current inhabitants

FLEXIBILITY There has been aimed to increase the flexibility of the apartments in order to suffice the demand in the future. Currently, mainly young families are residing in the building who probably will expand in the future. Therefore, a room is added to every single apartment. In this manner, Koppergården will have a high occupation rate. It is recommended that the other existing building also adopt this strategy.

ion process anization of nt levels of ganized with rove the so-

et er al)

high quality using for mepeople a mix ch helps the new apartmong the low

Inclination Orientation Peak PV power Total Area Cost Investment Payback -

39 ° 0 ° (S) 0.1632 [kW] 8200 m2 1889 SEK/m2 15490000 SEK 10.73 Years

Section A-A Building 25 +23100

+20200 +17500 +14800

come) m quality

Consumption vs Production of Electricity 300 000,00Consumption

vs Production of Electricity

+12100

200 000,00 300 000,00

-100 000,00 -100 000,00 -200 000,00 -200 000,00 -300 000,00 -300 000,00

+9400 jan feb mar apr maj jun jan feb mar apr maj jun

jul aug sep okt nov dec jul aug sep okt nov dec

+6700 +4000

-400 000,00 -400 000,00 -500 000,00

are inhe new

Produktion

To be able to fulfill the need for electricity during the summer and winter, adding PV panels with an inclination of 0 degrees, i.e. PV panels in the facade, was investigated. This could increase the electricity gains in the winter caused by the low position of the sun. However, the result showed that the difference in gains was minimal and thus negligible. It proved that not the inclination, but the hours of sun is the decisive factor in Sweden for the winter. The gains in the summer were drastically reduced by the inclination. PV inclination 35 30 25

kWh/m2

ncluding s inside

Scale 1:200

inclined tracking 2-axis tracking

-1225

SUNLIGHTING&SHADOWS It was found that the balcony of apartment A is shaded by the outer walls of the other apartments. To provide inhabitants of apartment A with more sunlight and a broader view, are the balconies relocated to outside the envelope as seen in the picture below. W After 13.00 p.m. , independent from the fact if it is summer or winter, the room attached to the balcony on south facade would not get direct sunlight. Therefore, the facade is relocated in line with the rest of the thermal envelope and obstructions are removed, to provide the room with direct sunlight.

ENERGY CONSUMPTION Energy consumption of building 25

winter

180

summer

180 160 160 140

E Existing condition

After refurbishment

40 35

160 140

35 30 30 25 25 20 20

140 120 120 100 100 80 80

15 15 10 10

0 0 kWh CO2 CO2 Heat

Untitled-1 2

0 0 kWh CO2 CO2 Electricity

60 60 40 40

5 5

20 20

0 Heat

26,1

16 14

70 60

14 12

26,1 4,6 42,0 4,6 42,0

12 10 10 8 8

97,9 9,1 97,9 9,1

13,2 13,2 2,3 2,3 29,4 29,4 19,1

kWhCO2 Hot water

6 6

3,2 3,2

kWhCO2 Electricity

4 4 4,7 4,7 26,4 kWhCO2 CO2 Heat

10,6 10,6

1,9 1,9

kWhCO2 kWhCO2

40 40

4 4 3 3 4,3 4,3

20 20

1,8 1,8

28 28

30 30

40 40

19,1 3,4 3,4 43,0

0 Heat

8 8 6 6

15,4 15,4 kWhCO2 Hot water

2 2

3,1 3,1 20 20

kWh CO2 Heat

Hot water

24 24

2 2

1 1

11 kWh CO2 Electricity

kWh CO2

CO2 Heat

CO2 Electricity

4 4

9,5 1,7 9,5 1,7 30,1 30,1

20 20

3,04 3,04

kWhCO2 kWhCO2

21,6 21,6

1,5 8,6 1,5 8,6

kWhCO2 kWhCO2

Electricity

CO2 Heat

3,8 3,8

kWhCO2 kWhCO2

-2

CO2 Electricity

450000 Renovation of building 25 800000

MEASURES TO IMPROVE ENERGY EFFICIENCY Addition of prefab elements with insulation, U-value 0.125 o Addition of 250 mm of insulation o Elimination of thermal bridges Addition of 50 mm of insulation in the basement. Switching the windows for energy efficient windows, U-value 0.58 - 0.72 Installation of exhaust and supply air ventilation system with heat recovery with a efficiency 82%.

14 12

43,0

9,4 100,4 9,4 100,4

12 10

6 5

50 50

10 10

60 60

19,1

CO2 Electricity

Energy D B consumption C of new buildings

140 120 120 100 100 80 80

Energy consumption of building 25 A B C D

U-VALUES After

Savings [kWh]

180 160

Energy [kWh/m2/yr] Energy [kWh/m2/yr]

45 40

Energy consumption of all A B Cold buildings D

CO2 [kg/m2/yr] CO2 [kg/m2/yr]

205 205

37 37

180

Energy [kWh/m2/yr] Energy [kWh/m2/yr]

39 39

jul aug sep okt nov dec

Energy consumption of new buildings

Energy consumption of all old buildings

CO2 [kg/m2/yr] CO2 [kg/m2/yr]

mptionCof commercialDarea

jan feb mar apr maj jun

MATERIALS Bricks will be the main facade material, in order to keep and respect the identity of current Koppergården. The facades are prefabricated with brick stonestrips on the exterior already attached. The bricks on facade will be made of different kinds of reused and if needed new bricks.

CO2 [kg/m2/yr] CO2 [kg/m2/yr]

mption of commercial area

icity

Vertical tracking

218 218

Fixed 40deg 0deg

center,

+1300

Difference

Energy [kWh/m2/yr] Energy [kWh/m2/yr]

Consumption

CO2 [kg/m2/yr] CO2 [kg/m2/yr]

kWh kWh

200 000,00 100 000,00 100 000,00 -

400000

700000

350000

600000

300000

Savings [kWh]

ncome

500000

250000

Building element

Before

Windows

2.87 - 3.48

0.58 - 0.72

Walls

0.412

0.125

200000

100000

Basement

0.754

0.352

100000

50000

400000 300000

200000 150000

0 4000000 1000000 2000000 0 3000000 2000000 4000 Cost [SEK] Cost[SEK]

12/9/2015 9:05:58 AM

G G

5C L

G G

G G L

G G

EXISTING CONDITION, NO.5&7 G G

Plans Building 5-7 G

Severe adjustments will be made to no. 5&7, as nowadays, mainly migrants are residing there, and no. 5, programmed as an student apartment, is even empty. It is unlikely that students will live in the area, wherefore it is aimed to redevelop it for families. This creates a mix of high, middle and low income households, what will improve the social interaction. Besides, the surrounding environment will be improved and private gardens for high quality apartments will be provided.

G G

5A Kitchen

G G

L G G G G

Bedroom

Kitchen

G G G G

G G

Second floor5 A

Ground Floor

Balcony

A Bedroom

Scale 1:200 Second floor

social meeting space, library, cafĂŠ

5m G

Living room

Bedroom

Living room

Bedroom

Bedroom Living room / Kitchen

single apartment

private garden Balcony

G G

Living room

Balcony

G L

G G

Kitchen

loft

Balcony

Bedroom

Living room

G L

G L G G

Bedroom

G L

Kitchen

G G

N Balcony

Kitchen

L G

Kitchen

G G

WC Kitchen

1:200 Ground Scale floor

G G

Bedroom

Kitchen

Balcony

L G G

G G

Bedroom

Balcony

G G

Bedroom

Balcony

Bedroom Living room / Kitchen

room

Balcony

Bedroom

Balcony

Bedroom

Balcony

G G

G G G

REFURBISHMENT 1. The existing load bearing walls will be preserved in building NO.5&7(see black hatches below). 2. On the ground and first floor the student apartments will be transformed into high quality family lofts with private gardens, in order to attract high and middle income households. Medium quality single apartments with a private kitchen will be created on the second floor to be able to adapt to the multi-need of the households. 3. A social meeting space will be set up in the previous office, that connected no.5 and no.7 before. This space will include a cafĂŠ, and library for adults and children.

Living room / Kitchen

Bedroom

G G

Balcony

CONCEPT

G G

Living room / Kitchen

G G

Bedroom

G G

Bedroom

Bedroom Living room / Kitchen

Bedroom

oom

Balcony

G G

Balcony

G G

Balcony

high

90 m

medium

40 m2

1-2, low income

medium

35 m2

1, low income

G G

3-4, medium income

G G

Bedroom

L Bedroom L Bedroom

G G

Bedroom

L LBedroom Bedroom

G G

Balcony

Bedroom

Balcony

4. Regarding vertical distrubution four staircases will be removed, and a staircase in the intermediate area added. 5. On the ground and first floor, the corridor will be turned into useable and comfortable space. However, on the third floor the corridor will be preserved in order to ensure safety related to fire, and comfortable transportation flows.

Bedroom

L G

Bedroom G G L

Bedroom

G G

G G G G

Plan 1

Scale 1:200 Second floor

L G

G G G G G G

G G

5 BA

G GL

vertical transportation

G G

corridor

First floor

First Floor

Second floor 5 A

RULLGALLER

G G

Bedroom Bedroom G G L

Bedroom

3-4, medium income

G G

1:200 Ground Scale floor

G L

5b,7b single apartments

Balcony

G G

Balcony

G G

90 m

G G

high

G L

G G

4-5, high income

Bedroom

120 m2

Bedroom

high

Bedroom Bedroom Living room / Kitchen

target group

5a,7a loft

area

G G

Bedroom

quality

Bedroom

amount

WC Living room / Kitchen

Bedroom

apartment type

tchen

Living room / Kitchen

G G

G L

Living room / Kitchen

Scale 1:10

G G L

L L

Details Building 25

Ground floor

Balcony

Bedroom

Living room / Kitchen

Bedroom

G G

Bedroom

Living room / Kitchen

G G

Bedroom

Living room / Kitchen

WC L

Bedroom

Living room / Kitchen

Bedroom

G G

Bedroom

Living room / Kitchen

G G

G G L

Balcony

WC G G L

G 0

L G

Scale 1:200 Second floor

G G

Balcony

Second Floor

Balcony

Second floor

Balcony

Living room / Kitchen

WC G G

Bedroom

Living room / Kitchen

Balcony

G L

Balcony

G L

Balcony

Scale 1:500

1:200 Ground Scale floor

Ground Floor - After

Common Floor - Before

G G L

G G

G L

Scale 1:500

First floor

Second floor

First floor

Second Floor - After

Scale 1:500

First Floor - After

G G

SUNLIGHTING & SHADING Based on the solar heating and direct sunlighting analysis, there is differ- Section A-A and Facade Building 5-7 ent kinds and levels of shading on each facade. +10950 SE&SW, vertical wood panel shading, +9400 NE&NW, horizontal wood panel shading. more details, please see facade on the right

+6700

less solar heating less direct sunlighting

+4000

+1300 0

1:200 Ground Scale floor

6 6 4 4 22

1,5 8,6 1,5 8,6

kWhCO2 WhCO2

100 97,9 80 60 40

42,1 32,5

20 0

7,9

29,7 12,9

7,1

7,3

4,1

15,1

3,3 3,3 -11,5-11,5

-9,6 -9,6

-20 Window Losses

Ventilation System

Exterior Walls

Floor Slab

CO2 Electricity

Thermal Bridges Initial

Roof

Internal Gains

Solar Gains

Second floor

It is recommended that the new buildings no. 2,8,10,18,20,36, which are high quality lofts, also use the wood panels for the facade. This will interconnect the buildings. Furthermore, the panels will be identical in size. In this manner, recycling after renovation or deconstruction is more convenient.

40 40

4,6

8 8 100,1 9,32 100,1 9,32

0 Heat

Final

12 10 10

42,9 4,6 42,9

20 20

Total Heating Demand

14 12

26,0

140 120 120 100 100 80 80 60 60

13,3 13,3 2,4 2,4 30,0 30,0 23,6 23,6

kWh CO2 Hot water

6 6

3,5 3,5

kWh CO2 CO2 kWh Electricity

4 4 25,3 25,3

4,5 4,5 12,3 12,3

kWhCO2 CO2 kWh CO2 Heat

150000 100000 50000

0 4000000 5000000 6000000 00 2000000 0 3000000 2000000 4000000 6000000 Cost [SEK] Cost[SEK]

Untitled-1 3

100 80

99,1

61,6

40 33,8

20 17,2 0

15,814,2

8,3

9,8 9,8

5,6 5,6 -11,5-11,5

-20 -40

2,2 1,5

Window Losses

Ventilation System

Exterior Walls

Floor Slab

Roof Initial

21,4

-18,2 -23,7

Internal Gains Solar Gains

Others

Heating Demand

Final

Lightbulbs Fridges Laundry Room Education Facade Windows Insulation basement Ventilation system Heat pumps PV 75% Reduction

MEASURES TO IMPROVE ENERGY EFFICIENCY Addition of prefab Elements with insulation, U-value 0.128 o Addition of 250 mm of insulation o Elimination of thermal bridges Addition of 50 mm of insulation in the basement Switching the windows for energy efficient windows ,U-value 0.65-0.8. Installation of exhaust and supply air ventilation system with heat recovery,efficiency 82%. Increase of glazed areas facing south to boost solar gains.

400000

U-VALUES

350000

Building element

Before

Windows

2.87-3.48

After 0.58-0.72

Walls

0.412

0.125

Basement

0.754

0.352

Savings [kWh]

200000

120

CO2 Electricity

450000

Faucets

Savings [kWh]

250000

Building 5 & 7 Annual Heat Demand (kWh/m2a)

450000 Renovation of building 5,7

400000

300000

2,2 2,2

kWhCO2 CO2 kWh

450000 enovation of building 25

350000

16 14

8 8

MATERIALS Wood panels will be the main material on the facades, as in nordic countries, wood is abundant and therefore cheap. Besides, it has several environmental advantages. Also, the material will create a friendly feel when people come to building no.5&7.

26,0

160 140 Energy [kWh/m2/yr] Energy [kWh/m2/yr]

CO2 [kg/m2/yr] CO2 [kg/m2/yr]

12 10

Energy consumption of building 5,7 A B C

180 160

120

G G

Building 25 Annual Heat Demand (kWh/m2a)

180

14 12

Energy consumption of building 5,7

g 25

ENERGY CONSUMPTION

CO2 [kg/m2/yr] CO2 [kg/m2/yr]

more solar heating more direct sunlighting

G G

-1225

G G

summer

winter

300000 250000 200000 150000

100000

50000

Faucets Lightbulbs Fridges Laundry Room Education Facade Windows Insulation basement Ventilation system Heat pumps PV 75% Reduction

0 1000000 2000000 4000000 5000000 6000000 0 3000000 2000000 4000000 6000000 Cost[SEK]Cost[SEK]

12/9/2015 9:06:02 AM