worldwide, 30-40 % of all primary energy is used in buildings
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Worldwide, 30-40 % of all primary energy is used in buildings. In the UNECE region, buildings cover approximately 35 % of the total energy consumption. CO2 emissions from buildings are expected to rise of 140 % cent by 2050. - PowerPoint PPT PresentationTRANSCRIPT
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Worldwide, 30-40 % of all primary energy is used in buildings
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In the UNECE region, buildings cover approximately 35 % of the total energy
consumption
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CO2 emissions from buildings are expected to rise of
140 % cent by 2050
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Worldwide energy consumption in buildings is expected to grow of 45% from 2002 to 2025.
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2/3 of energy consumption in buildings is used for heating and cooling
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Worldwide, 111 million people are employed in the building and construction sector
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The average new U.S house is 45 % bigger than it was 30 years ago
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Between 1985 and 1997, the average size of a European home increased from 83 sq. metres to 87 sq. metres
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2,5 million households in the world use solar lighting systems
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80-90 % of the total energy used during the lifespan of a building is consumed during the use phase
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From 25 % to 40 % energy savings may be reached in the housing sector
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After buildings, the transport sector is the next largest source of CO2 emissions
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80 % of energy is used in small households<1000 sq.m / Europe.
Thus, there lies the largest saving potential
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In France, the government has decided to refurbish all its public buildings by 2012 in order to cut the energy
consumption by almost 40% by 2020
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By using well-proven energy efficiency techniques, 70 to 90 % of a building’s energy need for heating or
cooling can be cut.
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Energy expertise is almost nonexistent within financial institutions
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Investments in improved energy efficiency in buildings could generate an additional 2 - 3.5 million green jobs
in Europe and the United States alone
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Typically, a low energy building uses at least 50 % less energy than standard buildings.
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Passive housing reduces energy consumption with 90 % compared to ”conventional housing”
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No other sector offers a cheaper way to cut emissions and save energy than the
building sector
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Renewable energy generates more jobs than employment in fossil fuels
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Certain countries have 50 % more energy loss than other richer countries of the region.
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In low income countries, the residential sector often represent over 90 per cent of all CO2 emissions from
buildings
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2.3 million people have in recent years found new jobs in the renewable energy sector alone
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Out of more than 3000 CDM projects in the pipeline as of May 2008, only 6 seek to reduce energy demand in
buildings
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The building and construction typically provides 5-10 % of employment at national level and generates
5-15% of the GDP
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In Germany for example, environmental technology is to grow fourfold to 16 % of industrial output by 2030
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In 2030, biomass use will still represent over half of the residential energy consumption in developing
countries
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40-50 % of the total flow in the global economy is used for the manufacturing of building products and
components