Intelligent building: from dream to nightmare!

August 25th, 2010 | 2 Comments | Posted in Energy Efficiency - building
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I wrote this article to react to the previous post called “My office: a 100% intelligent building!” where Mr Steve Tettoc describes how great his new intelligent building is. His building, where everything is fully automatic and occupants have no control on their environment, seems really crazy to me.

And honestly I wonder if Mr Tettoc, and the visitors who commented that they thought it is a bright idea, have a real field experience of how things evolve in such buildings after a few years, and what their occupants really think about it.

angry occupant in intelligent building

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Energy management: enable every occupant to tailor his own dashboards

June 18th, 2010 | 5 Comments | Posted in Energy Efficiency - building
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Energy management with iPad

Tailored energy dashboard on your iPad

Energy bill and carbon footprint are becoming increasingly important topics for commercial buildings. This trend started with large buildings but nowadays also small and medium size buildings occupants and owners are eager to reduce their energy bill and carbon footprint… and to show it to all their stakeholders.

Devices and solutions providers are developing new features and new offers to enable that efficient management of the various energies, so that facility managers both for new and existing buildings can contribute to a sustainable development: meters, wireless communication systems, etc.

But the most dramatic change will come from the way the occupant and facility manager interact with that systems to make it an actual tool for them to make things happen, in his specific situation.

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Surge protector in switchboards > 50kA ?

June 14th, 2010 | 16 Comments | Posted in Electrical distribution
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electrical_risk

I would like to share a problem I face when I have to install a surge protection device type 1 in high power electrical switchboard. I already asked this question on another blog, and I’m trying to get more feedbacks from electrical engineers.

The situation is very “unconfortable” for me as a quality provider, because if a short-circuit of high value happens, though luckily probability is low, it would mean very serious safety risks …

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High Voltage: circuit breaker is the best!

May 23rd, 2010 | 15 Comments | Posted in Electrical distribution
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ringmaster outdoorEvery time I hear or read something about fuses, I’m convinced that15 years ago in the UK, we made the right choice by moving away from fuses to circuit-breakers.

If we take the first argument I read in a previous article, that a fuse-switch is a cost effective solution, this is in fact a myth. In the past it was true due to the physical size of the old circuit-breakers.  Now, compact RMUs with dedicated circuit breakers and self-powered relays have the same life time costs as fuse-switch solutions and have far more useful features.

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Discover our new electrical engineering forum !

May 19th, 2010 | 5 Comments | Posted in your need? your contribution?
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Just click on the “” tab to get there!

You will see 2 Forums:
* General discussion, for all topics related to and energy efficiency
* Blog and issues, for suggestions, problems ..

Laurent M, moderator

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