By Sergio Ferreira / Published on Mon, 2008-09-22 13:04
How sustainable is a kWh?
What is the best technology to produce it?
These questions are often asked and the answers are not clear-cut, as there are a lot of variables.
Therefore, Leonardo ENERGY has produced this eco-sheet to help clarifying the issue. The environmental burden of generating one kWh from 7 different energy sources is quantified. It shows that there is no silver bullet solution, but there are advantages to explore.
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By Sergio Ferreira / Published on Fri, 2007-09-21 11:42
Concerns about CO2 and climate change are greater than ever. Residential heating is responsible for a considerable part of CO2 emissions that go into our atmosphere.
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By Sergio Ferreira / Published on Wed, 2007-07-04 16:22
The objective of this case study is to analyse the effects of improving the efficiency of a 15kW induction motor in various countries with different energy mixes. The results show that an improvement of efficiency has higher environmental benefits in countries with an electricity generation based on fossil fuels rather than renewable energy sources or nuclear. Electricity mixes from EU25, France, Germany, Poland and Austria were used.
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By Hans De Keulenaer / Published on Tue, 2006-07-04 07:20
Increasing efficiency of rural transformers can produce significant environmental benefits. A 25% loaded 100 kVA high efficiency transformer saves almost 37 tonnes of greenhouse gas emissions over its 30-year lifetime. Around the world, over 100 million distribution transformers are in use (source), many of which are in rural areas.
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By Hans De Keulenaer / Published on Mon, 2006-07-03 10:48
Increasing efficiency of industrial transformers can produce significant environmental benefits. A 50% loaded 1.6 MVA high efficiency transformer saves almost 400 tonnes of greenhouse gas emissions over its 30-year lifetime. The environmental payback on the additional material used for improving efficiency is more than a factor of 100, according to this eco-sheet.
The global installed base for distribution transformers is well over 100 million units (source), with around 10% of these industrial transformers.
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By HDK / Published on Sat, 2006-06-10 11:52
Eco-design case study, based on the engineering studies in the transport download section, demonstrating the environmental benefit of upgrading the equivalent cross-section for 1.5 kV DC railway lines.
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By Sergio Ferreira / Published on Fri, 2006-05-19 16:08
Improving the efficiency of a 22 kW motor - 50% loaded by 3% reduces lifetime emissions for CO2 by almost 19 tonnes, as shown in a new eco-sheet developed using the ecodesign toolbox for motors, transformers and cables. Efficiency improvement equally improves environmental performance for other impact categories.
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