Laurent Deletombe

Master CEE 16/11/10

#) Introduction: Presentation of the problem

#) Statement of the global situation:- Energy and environment- French example

#) Environmental house constructions

#) Economic aspect

#) Conclusion

Ecolonomical = Ecological + Economical

But what is the most important for a household : environment or savings???

- Global warming (greenhouse effect, CO2 emissions...)

- Energy requirements are continually increasing

- Wordwilde decrease in fossil fuel (oil, coal, gas) and uranium resources

- Slowly developing of alternatives (clean and renewable energy)

Building sector 42% of final energy consumed that is,

about 1 toe/inhabitant/year ( 1toe = 7 x )

23% of national CO2 emissions

Heating and electric bills increasing

Necessity for a new regulation(RT 2005, RT 2012)

- Applied since 2006 for new building construction including individual houses

- Goal: reduction of energy consumption at 150kWh/m2/year ( approximately 300kWh/m2/year for old constructions)

- Elements considered : geographical zone, lighting, heating, ventilation, thermal insulation, hot water production

- Published the 27/10/10 in the « Journal Officiel »

- Applied the : 28/10/11 for service sector and public buildings 01/01/13 for residential sector

- Upgrade of RT 2005 : similar conditions (insulating, heating, geographical zone,...) but the aim is to reduce to 50kWh/m2/year the energy consumption and to incorporate a BBC construct.

- Official energy label, applied with RT 2012

- Reduction of energy consumption <50kWh/m2/year

- Voluntary approach

- 14 performance targets (with different levels according to performance)

- Money = 1st priority for a large number of persons

- Constructions, renovations or investments are expansives

Governmental aids ( reductions in taxes ) are they enough incentive?

- Energy control is the key of our future, of our environment.

- Many solutions exist but : #) Are they applicable? #) Are they understood? #) Are they efficient?

However this ecolonomical concept is one of these keys.