SUSTAINABLE ENERGY IN AN URBANISED WORLD urban population% 80 Oil - - PowerPoint PPT Presentation

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SUSTAINABLE ENERGY IN AN URBANISED WORLD urban population% 80 Oil - - PowerPoint PPT Presentation

Mar 04, 2024 10 likes •320 views

SUSTAINABLE ENERGY IN AN URBANISED WORLD urban population% 80 Oil drove the 20 th 70 Century economic boom. Efficient use of 60 renewable energy is 50 the opportunity of 40 our century 30 20 10 0 1900 2007 2050 URBANISATION

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SLIDE 1

Oil drove the 20th Century economic

  • boom. Efficient use of

renewable energy is the opportunity of

  • ur century

SUSTAINABLE ENERGY IN AN URBANISED WORLD

10 20 30 40 50 60 70 80 1900 2007 2050

urban population%

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SLIDE 2

URBANISATION – GREEN OR BLACK GROWTH?

  • Black urbanisation:
  • Poorly planned:
  • Congestion? We

build a new road

  • Deteriorisation of health

and the environment

  • more is less
  • Green urbanisation:
  • Holistic planning
  • Congestion? We

shift mode

  • Less is more
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SLIDE 3

THE SUSTAINABLE CITY OF THE FUTURE

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SLIDE 4
  • Five minute city
  • Promotes walking, cycling, and public transport at the

expense of cars

  • Mixed use
  • CO2 friendly city
  • Renewable energy
  • District solutions
  • Protection against climate changes
  • Intelligent grid
  • Staggered building zone structure
  • Dynamic structure
  • Flexible to adapt to future trends
  • The city will never be perceived as finished

Nordhavnen: Copenhagen – the sustainable city of the future

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SLIDE 7
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SLIDE 8

Lakeside will set new standards for resource efficient buildings

CREATE A GREEN CODE FOR LAKESIDE

Energy efficiency:

  • Designing for High-Performance, Greater

Energy Efficiency and Comfort: Maximum limit to heat and cooling loads

  • All buildings must connect to district energy

systems

  • Use low embodied-carbon and resource

efficient building materials

  • Implement smart user controls, monitoring

and feedback

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SLIDE 9
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SLIDE 10

2010/09/27 COPENHAGEN CLIMATE PLAN 2025

COPENHAGEN CO2 NEUTRAL BY 2025

  • 98% of heat supply by district

heating

  • Regional “fingerplan” supports

high rate of public transport

  • Years of tradition of bicyclism
  • Good potential for geothermal

heat

  • Easy access to imported

biomass

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SLIDE 11

SMART ENERGY CITY CONCEPT SMART INTELLIGENT GRIDS AND BUILDINGS

  • National power grid
  • City-wide district heating grid
  • storage
  • optimal use of CHP and RES
  • City district cooling grid
  • storage and optimal free cooling
  • National natural gas - biogas grid
  • gas storage,
  • gas to CHP and small houses
  • 11

Climate Committee

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SLIDE 12

SMART INFRASTRUCTURE IN THE BACK YARD

  • Avedøre
  • New power plant site located with

respect to the heat market

  • CHP multi-fuel gas, coal, straw,

wood pellets

  • CHP with 2x22.000 m3 heat

accumulators

  • Waste water treatment plant
  • Wind
  • Amager
  • CHP biomass, coal
  • Waste-to-energy
  • Geothermal energi
  • Waste water treatment plant
  • Sludge incineration
  • 12
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SLIDE 13

District energy offers the most affordable, clean, discrete and future proof energy supply.

SMART SUPPLY: DISTRICT ENERGY

Energy

  • Create district energy systems that provide

Lakeside with heating, cooling, and power

  • Create energy generation facilities that

can be phased with the development

  • Create a shared network for

energy distribution

  • Extend the energy network into the

adjacent community

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SLIDE 14

FLEXIBLE DISTRICT ENERGY

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SLIDE 15

AQUIFER THERMAL ENERGY STORAGE

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SLIDE 16

A BROWNFIELD DISTRICT ENERGY SYSTEM INTEGRATING WITH ITS NEIGHBOURS

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SLIDE 17

HEATING CO2 EMISSIONS – AN EXAMPLE

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SLIDE 18

Lakeside is neighbor to the largest solar field in

  • USA. Lakeside can go

solar too.

ENERGY FROM THE SUN

Energy

  • Buildings will be equipped with – or at least

prepared for – solar panels

  • A design guide will secure a consistent

visual expression of the installations.

  • Large solar rooftop installations could net-

meter back to the neighborhood utility

  • The land to be developed during later

phases could be used temporarily for solar fields

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SLIDE 19

Lakeside has excellent wind resources, in particular offshore. We want to be a first mover.

USE WIND POWER

Energy

  • Wind turbines on the breakwater: the

Lakeside landmark

  • Initiate a large-scale offshore wind farm

project off Lakeside

  • With 15 turbines Lakeside would be self-

sufficient with electricity

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SLIDE 20

The bottom of the lake is a reservoir of cold water which can be used as a free energy source.

USE LAKEWATER FOR DISTRICT COOLING

Energy

  • The existing cribs could be used to supply

cooling water from the bottom of the lake

  • - or, a new long pipe will be extended far
  • ut into the lake
  • An underground cooling water distribution

system will connect to all buildings needing cooling

  • The lukewarm return water will be pass

through the Lakeside water bodies and help keep outdoor temperatures down, before being returned to the lake.

  • Costs of cooling will be dramatically

reduced.

Toronto district cooling using lakewater Using lakewater Option using groundwater

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SLIDE 21

AN INTEGRATED URBAN ENERGY SYSTEM

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SLIDE 22

LARGE-SCALE HEAT STORAGE

  • Seasonal solar heat storage
  • Takes on big time in DK
  • Competitive with conventional

heating

  • Seasonal storage in a smart

grid:

  • Decoupling CHP from heat

demand

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SLIDE 23

BALANCING WIND POWER IN DH SYSTEM

Thermal energy storage Geothermal Heat pump Wind Solar CHP heat

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SLIDE 24

COST COMPARISON OF DIFFERENT MEASURES

24

Energy savings, kWh/m2 Costs

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SLIDE 25

Heat supply Electricity Cooling

District heating District heating District heating Conventional power Conventional cooling Solar th. Solar th.

  • Th. Storage
  • Th. Storage

Geothermal Conventional power Wind power Wind power Solar PV Ground water cooling Ground water cooling Cooling storage Cooling storage Sea water cooling

BASELINE INTERMEDIATE LONG TERM

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SLIDE 26

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FAST TRANSFORMATION THROUGH DISTRICT ENERGY: DENMARK

0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1980 1985 1990 1995 2000 2006 2010 2015 2020 2025 2030 2035 2040 2050

Share of fuel/energy to cover 1 unit of heat

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Share of combined heat and power production

Waste, biomass etc. Natural gas Coal Oil Share of combined production

Disctrict Heating

10 20 30 40 50 60 70 1980 1985 1990 1995 2000 2006 2010 2015 2020 2025 2030 2035 2040 2050

Net heat demand in TWh

Biomass Solar heating (individual) Heat pumps (individual) Stoves, electricity Central heating/with natural gas Central heating/with oil District heating

Case A: Moderately improved building envelope and expansion of district heating

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SLIDE 27

URBAN PLANNING MATTERS!

27

500 1000 1500 2000 2500 3000 3500 4000 4500 5000 periferi, n-gas City, fjernvarme kg/m2 over 60 år

CO2 emissioner, kontorbyggeri

Transport, 60 år El, 60 år Varme, 60 år Materialer

CO2 emission for new office building Commuting Electricity Heating Materials

Public transport district heating Individual transport individual heating

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SLIDE 30
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SLIDE 31

Vind Olie Non Energy Naturgas Kul Diesel Benzin Avgas Affald

CO2 ækv. opgjort på brændsler

Alle virkemidler

2005 2015 2025 2.400 2.200 2.000 1.800 1.600 1.400 1.200 1.000 800 600 400 200

  • 200
  • 400
  • 600
  • 800