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Sustainable technologies


Sustainable technologies GREEN BUILDINGS HEATING & COOLING WASTE & RECYCLING WATER & WASTEWATER ENVIRONMENTAL ENGINEERING Sweden fully embraces green technologies – PowerPoint PPT presentation

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Title: Sustainable technologies

Sustainable technologies

Sweden fully embraces green technologies
Green buildings
  • Green building material, energy efficiency, waste
    collection and utility organization are main
    areas involved.
  • Wood building technology, low energy housing
    solutions (passive houses) are forefront areas in
  • Long tradition in energy efficiency work both in
    industry and construction with many leading edge

June 3, 2014
Eco-cities the Swedish model
Western Harbor, Malmö
Hammarby Sjöstad, Stockholm
Älvstranden, Göteborg
Achievements Hammarby SjöstadEnvironmental Load
Extraction of non renewable energy sources (kWh)
Water use (m3)
Global Warming (g CO2 eq.)
Photochemical Ozone Creation (g C2H4 eq.)
Eutrophication (g O2 eq.)
Acidification (mol H eq.)
Radioactive Waste (cm3)
Source Grontmij, 2008
A fossil fuel free capital by 2050City of
Stockholm Environmental goals and achievements
Fossil fuel free
Real development
Source City of Stockholm
Building in wood a Swedish specialty
  • Every 7th new Swedish home based on wood
    construction (multi-family buildings),
    construction under way all over the country
  • Know-how to build tall constructions (8-10
    floors) as well as special-purpose buildings and
  • Advanced research at a number of Swedish
  • Välle Broar in Växjö 1,200 apartments in
    Swedens largest wood-constructed neighborhood

Limnologen, part of Välle Broar ,Växjö
Benefits environment, speed, cost, quality
Heating cooling
  • Heat pumps Sweden has the highest number of
    installed geothermal heat pumps in the world and
    is also home to some of the largest producers.
    This has created a platform for independent
    researchers and developers since the 1970s.
  • District heating Sweden is the world leader in
    district heating and Swedish carbon dioxide
    emissions have thereby dropped by 20. Now 80 of
    the Swedish district heating is based on energy
    that would otherwise have gone to waste.
  • District cooling Sweden is a pioneering country
    in district cooling and first plant was in
    operation 1992. Now 30 plants producing district
    cooling and Swedish district cooling companies
    have laid a strong foundation for building
    systems in the form of pipelines.

Geothermal heat a brilliant, efficient idea
  • Even climates without a lot of sun suffice to
    store enough heat energy underground. The heat
    pump can be used for both heating and air
  • It takes only one part electricity to produce
    three parts heat
  • RPM control reduces energy consumption
  • New technology yields hotter water and faster
    heat for less money
  • Geothermal heat reduces annual electricity
    consumption by 50 to 75
  • Remote monitoring and control can be managed
    over the Internet

District heating principle
District heating plants utilise a wide variety of
fuel types and take advantage of energy that
would otherwise go to waste, such as waste heat
from industrial processes, forestry waste and
energy recovered from rubbish and waste. The
technology is uncomplicated and very reliable.
Sweden is the world leader in district heating
  • Sweden is the world leader in district heating.
    Consistent and relatively high environmental
    taxes on fossil fuels and openness to new
    solutions in the energy sector have driven
    technological progress and sharply reduced the
    use of fossil fuels.
  • The transition from individual systems to large
    district heating plants has reduced emissions of
    nitric oxides, sulphur dioxide and particulates.
    Swedish carbon dioxide emissions have dropped by
  • A long history of building knowledge about how
    common systems should be built and maintained
  • Energy companies with tremendous financial
  • Four-fifths of the heat used in Swedish
    district heating networks is based on energy that
    would otherwise have gone to waste

District cooling a technology with minimal
environmental impact
District cooling is based on the same principles
as district heating. Water is chilled and then
distributed in a pipeline to homes, offices,
industrial buildings and other spaces that need
air conditioning. The cold water is pumped
around in a closed system and used to cool the
air circulating in the buildings ventilation
system. The same water is then piped back to the
production facility to be rechilled.
District cooling is making strides
  • Swedens first district cooling plant went
    operational in 1992. Today, there are about
    thirty plants producing district cooling in
    Sweden. Studies show that total demand for
    district cooling equals about 2000-5000 GWh.
  • The growing numbers of computers in the workplace
    and the realisation that comfort cooling
    increases productivity have brought greater
    demands for a comfortable climate at work. As a
    result, the need for eco-friendly and
    cost-effective comfort solutions is increasing
    every year and the market is growing rapidly.
  • 10 of global electricity production is used
    for cooling
  • 16 of US electricity production is used for
  • More than 80 of buildings in the US and Japan
    are air-conditioned. The figure is less than 50
    elsewhere in the world, but is rising fast
  • The EU expects district cooling to provide 25
    of the requirement by 2020

Waste recycling
  • Collecting, handling, biological treatment,
    recycling and depositing
  • Efficient systems for collection and sorting
    strongly reducing landfills
  • Developed systems for "waste to energy" has given
    waste a value
  • Smart solutions to local transportation, heat and
    energy use

A leader in waste collection and recycling
Source Swentec A mapping of the waste and
recycling sector in Sweden, 2008
Innovative solutions, comprehensive know-how
Sakab Hazardous waste treatment
Envac Automated waste collection
Optibag Optical sorting
Pioneering waste-to-energy solutions
Produced volumes of co-digested biogas
Energy from incinerated waste
Source Swedish Waste Management (Avfall Sverige)
Source Swedish Biogas Association / Swedish
Waste Management (Avfall Sverige)
Stockholm A green leader among world capitals
District heating produces about 75 of the heat
required to keep Stockholm warm. The high
percentage has made Stockholm a green leader
among world capitals. Stockholm is growing and
district heating is growing right along with it.
Högdalenverket is one of the biggest district
heating plants in Europe. The household waste
produced by the people of Stockholm is burned
here and converted to electricity and district
heating. Over the years, this has contributed to
sharp reductions in emissions of carbon dioxide
and other harmful substances. Every year,
Högdalenverket takes in 500,000 tonnes of
household waste and 200,000 tonnes of sorted
industrial waste, which is converted to 450 GWh
of electricity and 1,700 GWh of district heating
for a quarter million Swedes.
Water wastewater
  • Economizing, local and central sewage systems
  • Wastewater treatment for both industry and homes,
    and sludge treatment
  • Waste water (grey water) to drinking water
  • Black water / sludge to energy

Swedish model for water supply and sewage
Integrated water management
  • Drinking water supply
  • Swedish companies and municipalities have worked
    within this area for over 140 years! Export
    started 1903! In the early days focus was on
    providing freshwater and fire fighting. In
    addition to the 2000 public water plants in
    Sweden this know how has been exported to more
    than 100 countries.
  • Wastewater services and systems
  • Sweden has one of the most far-reaching effluent
    standards in the world for treated wastewater.
    Sewage treatment plants were introduced as early
    as the 1930s. Mechanical treatment was followed
    by biological treatment in the 1950s and
    chemical treatment in the 1970s, reducing
    discharges of the nutrient phosphorus and more
    recently nitrogen.
  • Bio gas energy production
  • The first commercial biogas recovery plants was
    built in Sweden in the early 90s. This product
    evolved from the broad experience within energy
    systems. The RD within the area has given new
    state-of-art low emission and high-yield
    products, which covers all the stages from design
    and  construction to turnkey renewable fuel
    production plants.

Environmental engineering
  • Analytical services and similar within the area
    of environment and natural resources exploration
  • Great market for technical services with advanced
    environmental legislation
  • Urban and industrial system application knowhow
  • Massive investments in natural resource
    exploration in Scandinavia and the Barents Sea

Great demand for environmental engineering
  • Strong industrial base in heavy engineering
    automotive, energy, engineering, metals, mining,
    and pulp and paper
  • CSR issues highly prioritized, Swedens
    multinationals invest heavily to improve
    environmental performance
  • Large project investments under way (wind power
    build-up, expansion of mining capacity, etc)

Gate to the Barents Sea Region
  • One of the worlds richest areas for natural
  • 25 of world oil and gas reserves in Barents Sea
  • Target oil and gas explorers, energy companies
    and metals and mining companies in Sweden,
    Norway, Finland and Russia
  • Sweden natural base
  • Culturally easy to do cross-border business
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