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Eco-sheet: 1 kWh generated using different energy sources October 12, 2008

Posted by Hans De Keulenaer in electricity.
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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.

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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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This eco-sheet is the 7th in a series on quantifying the environmental impacts from energy use. You can view the full series following this link.

The electricity system as a tandem bicycle April 7, 2008

Posted by Hans De Keulenaer in electricity, tutorial.
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The system that delivers electricity to private citizens and companies across the country is highly complex. While electricity is an omnipresent and crucial part of our everyday economy, understanding this system and all its associated phenomena is not easy, sometimes even for trained electrical engineers. In such a case, a good analogy often helps to form a better idea of how things work. We have chosen to compare the electrical system with a tandem bicycle to explain a few of its aspects.

How to Manual on Small Scale Wind Energy April 3, 2008

Posted by Hans De Keulenaer in electricity, renewables.
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This manual explains how a small wind energy system works, what is the most suitable solution in your case and, if it makes sense, how to start planning and building your installation.

The current promotion by governments of distributed and renewable generation creates opportunities for individuals and small scale developers. This manual is part o

f a series dedicated to small scale renewables.

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Howto manual – photovoltaics April 2, 2008

Posted by Hans De Keulenaer in distributed generation, electricity, photovoltaics, renewable electricity, renewables.
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“I heard about feed-in tariffs for photovoltaics: would it make sense to install panels in my roof ?”. “I have troubles with the power coming from the grid. How can I make more reliable the power supply?”.

This manual explains how a photovoltaic system works, what is the most suitable solution in your case and, if it makes sense, how to start planning and building your small scale photovoltaic installation.

 

The current promotion by governments of distributed and renewable generation creates opportunities for individuals and small scale developers. This manual is part of a series dedicated to small scale renewables.

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Multiple Power Quality Supply System 1st in Japan March 31, 2008

Posted by Hans De Keulenaer in electricity, power quality, reliability, security, storage, technology.
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In this interview, Keiichi Hirose from NTT Facilities, presents the first trial to take place in Japan in the area of power quality concepts and solutions. This field demonstration of a multiple power quality supply system is leaded by NTT Facilities. It has developed and installed a multiple power quality supply system that has the capability to feed four classes of alternative current (AC) and one of direct current (DC) power while meeting various customer requirements. The system also has three types of distributed generator (DG): gas engine sets, fuel cells, and photovoltaic panels. NTT Facilities started the project in Fiscal Year (FY) 2004 and plans to continue it for four years. A review of the project’s first three years was done @EPQU’07 conference.