green energy, circular economy and eco-cities · pre-certificate (phase1): design 1. arhus,...

1 | © DGNB 2013

Green energy, circular economy and

Eco-cities

Administrator

都市世界印章

2 | © DGNB 2013

Source: ISO 15392 / „Our Common Future“ UNWCED 1987

Introduction

What is sustainability?

Our Common Future (The Brundtland Report) , United Nations World Commission on

Environment and Development, 1987

Sustainable development is:

“….development that meets the needs of the present without compromising the ability of

future generations to meet their own needs.“

ISO 15392:2008 Sustainability in building construction -- General principles

“ ISO 15392:2008 identifies and establishes general principles for sustainability in

buiding construction. It is based on the concept of sustainable development as it applies

to the life cycle of buildings and other construction works, from their inception to the end

of life.”

“ ISO 15392:2008 is applicable to buildings and other construction works individually and

collectively, as well as to the materials, products, services and processes related to the

life cycle of buildings and other construction works.”

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Introduction

What is sustainability?

The German idea of „sustainability“ is rooted in forestry, where it was first defined in

1713 by Hans Carl von Carlowitz, Secretary of Mining in Saxony.

Hans Carl von Carlowitz: Anweisung zur Wilden Baum-Zucht, Leipzig (1713) Image: Dominic Church

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Land consumption and

Energy efficiency

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Source: BP Statistical Review of World Energy, June 2013

Resource efficiency

Fuel consumption

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Source: Statistische Ämter des Bundes und der Länder, Nachhaltige Entwicklung in Deutschland, Indikatorenbericht 2010

Land consumption in Germany ( hectares per day)

Built-up areas

Developed open areas Quarterly average

Highways and transport

Target

Resource efficiency

Land consumption

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Low Energy House

ca. 140 m2

58 kWh/m2 a 2

8120 kWh/a

ca.810 l heating oil per annum

Image: Dominic Church VW Passat 1.4TSI Bluetech

6.1l/100km1, 810 l/a = ca. 36 km per day

50km per day = 1115l petrol per annum

Sources: 1http://carfueldata.direct.gov.uk; 2 Authors own research

25 km to nearest town

Resource efficiency

Location, location, location

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Source: „Towards an Urban Renaissance“ DETR,1998

After: Newman & Kenworthy, „Sustainability and Cities: Overcoming Automobile Dependence“,1989

Resource efficiency

Dwelling density

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Water

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Resource efficiency

Water

Sources: Wasser im 21 Jahrhundert, Bundesministerium für Umwelt / UNESCO-IHE

up to ca. 400,000 litres

30 litres ca. 140 litres

Virtual water consumption in Germany:

4,000 litres per day

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Rain water infiltration

on site

Grey water use

or

Decentralised purification

on site

Grey water use

Rain water

(sealed surfaces)

Drinking water demand

and irrigation

Rain water use

Cleaning

Baths and showers

Toilets and urinals

Drinking water

demand

Waste water

volume

Resource efficiency

Water

Source: DGNB

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Resource efficiency

Water

Image: Dominic Church

Human activity disrupts the

natural water cycle:

Sealing soil for land use prevents

infiltration

Capturing precipitation diverts flow

Extracting surface and ground

water run-off interrupts flow

Introducing treated or raw used

water into water cycle adds to flow

Accelerating run-off destabilises

periodical fresh water supply

All of these can lead to major

problems, such as flash floods….

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Resource efficiency

Water

Tewkesbury, UK, 2007

Sources: www.guardian.co.uk

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Rain water recycling

Rain water down pipe

Rain water cistern

Filter

Pump Control

Resource efficiency

Water

Sources: DGNB

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Overflow


Resource efficiency

Water

Sewage

plant

Storm

water

retention

Sewage

plant

Rain water

Waste water

Surface water

Rain water

Waste water

Surface water

! !

Combined sewer Separated sewer

Ground water

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Green roofs

Sustainable urban drainage systems

Images: Dominic Church

Resource efficiency

Water

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Material resources

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Example: An agricultural shed in the Carribbean


..local

..renewable

..low embodied energy

..CO2 neutral

..imported

..non – renewable

..high embedded energy

..high CO2

Resource efficiency

Materials

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Source: Abfallentsorgung, Vorläufiger Ergebnisbericht für ausgewählte Entsorgungsanlagen, DESTATIS 2010


23%

of all waste

57%

of all waste

going to landfill

Construction and demolition

waste in Germany, 2010

Resource efficiency

Materials

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Source: Statistische Ämter der Länder –Fläche und Raum UGRdL 2011

Waste in million tons

Where it comes from:

Waste types

Construction and demolition

waste

Domestic waste

Manufacturing and trade waste

Mining spoil

Hazardous Waste

Resource efficiency

Materials

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Building

Component

Structure

Roof Cladding

Windows/Doors

Tech. Equipment

Flooring

Interior Finishings

20 years 40 years 60 years 80 years

? ?

Resource efficiency

Life cycle thinking

Sources: ee-concept, DGNB

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City Redevelopment in Pisa, Massimo Carmassi, Pisa, Italy

Resource efficiency

Re-using buildings

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The DGNB System for Urban Districts

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Life cycle assessment

Water and soil protection

Changing urban

microclimate

Biodiversity and interlinking

habitats

Considering possible

impacts on the environment

Land use

Total primary energy

demand and renewable

primary energy share

Energy-efficient

development layout

Resource-efficient

infrastructure, earthworks

management

Local food production

Water circulation systems

Life-cycle costs

Fiscal effects on the

municipality

Value stability

Efficient land use

Social and functional mix

Social and commercial

infrastructure

Objective / subjective

safety

Public space amenity value

Noise protection and sound

insulation

Open space offer

Inclusive Access

Development layout and

flexible use

Urban integration

Urban design

Use of existing structures

Art in public spaces

Energy technology

Efficient waste

management

Rain water

management

Information and

telecomunication

management

Maintenance,

upkeep, cleaning

Quality of transport

systems

Quality of motor

transport

infrastructure

Quality of public

transport

infrastructure

Quality of bicycle

infrastructure

Quality of pedestrian

infrastructure

Participation

Concept development

process

Integrated planning

Municipal involvement

Management

Construction site and

construction process

Marketing

Quality assurance and

monitoring

DGNB Certification of Urban Districts

Source: DGNB

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Minimal requirements have to be

fulfilled in each evaluation area

Total

Performance

Index

Minimum Group Performance Index Award


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Source: DGNB


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The assessment evaluates publicly

accessible areas (streets and roads,

squares, green and open spaces)

The basic building consumption is

taken into account (e.g. demand for

heat, electricity and water)

The Context and setting is taken into

account (e.g. adjoining open spaces,

educational institutions, supply centres,

connection to public transport systems)


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Pre-certificate (Phase1): Design

1. Babenhausen, Grünkern (60 ha)

2. Bedburg, Bedburger Höfe (20 ha)

3. Esslingen, Neue Weststadt (10 ha)

4. Cologne, Waidmarkt (1,9 ha)

5. Luxembourg, Belval (112 ha)

6. Luxembourg, Ban de Gasperich (80 ha)

7. Offenbach, Hafen (29 ha)

8. Stuttgart, Mailänder Platz (4 ha)

9. Switzerland, Aarau, Torfeld Süd (5 ha)

10. Stuttgart, THINK K (2,5 ha)

11. Heilbronn, Neckarbogen (30 ha)

Certificate (Phase2): Infrastructure

12. Düsseldorf, Le Quartier Central (28 ha)

13. Frankfurt, Europa-Viertel (67 ha)

Certificate (Phase3): Urban District

14. Berlin, Potsdamer Platz (13 ha)

15. Berlin, Dom Aquareé (2,5 ha)

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DGNB Certificate (Infrastructure) in Silver

Le Quartier Central, Düsseldorf, Germany


© aurelis Real Es tate Gm bH und Co. KG

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Pre-certificate (Phase1): Design

1. Arhus, Bryggervej

2. Copenhagen, Carlsberg City District

3. Copenhagen, Nordhavn - Trælastholm & Sundmolen

4. Horsens, Nørrestrand

5. Naestved, Nybyggerne (registered but not yet pre-certified)

DGNB Certification of Urban Districts in Denmark

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Big Tax-Income for Copenhagen Directly at the sea

No art in public spaces

Metro Stop

Susta

inabili

ty r

eport

ing


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Introduction

What is a sustainable city?

The sustainable city:

offers an attractive quality of life

is the place of first choice for residents - now and for many generations to come

supports a lifestyle which uses energy, water, and materials sparingly and efficiently

is densely populated and reduces the need for work and leisure travel

exploits and enhances existing assets and resources to create value

It is likely to be a city you already know and love!


green energy, circular economy and eco-cities · pre-certificate (phase1): design 1. arhus,...

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