Too Expensive ! Too much pollution ! Investments proposals in order to reduce our energy consumption.

Too Expensive !Too much pollution !

Investments proposals in order to reduce our energy consumption

LAGAS NicolasLAMY JérômeNGUYEN Tu

I. When energy flies away …

Today our energy comes mainly from petrol Petrol costs more and more Petrol is pollution

We must react !!!We must react !!!

LAGAS NicolasLAMY JérômeNGUYEN Tu

I. When energy flies away …

• Main energy sinks in our buildings

Lights Machines Computers Heating during winter Cooling during summer Bad insulation of walls and roofs

LAGAS NicolasLAMY JérômeNGUYEN Tu

I. When energy flies away …

• How to reduce the bill?

Change the employees customs

Change our machines

Change our sources of energy

LAGAS NicolasLAMY JérômeNGUYEN Tu

II. Alternative energies

Solar energy

Solar power– provide electricity to light on the factory or power

on the motors

Solar thermal– Provide hot water

LAGAS NicolasLAMY JérômeNGUYEN Tu

II. Alternative energies

Advantages and Disadvantages of Solar power

Pro– Unlimited and free

– Clean energy

– Usable everywhere in the world

– Government helps

LAGAS NicolasLAMY JérômeNGUYEN Tu

II. Alternative energies

Advantages and Disadvantages of Solar power

Cons– Limited efficiency of the solar panel

– The cost of the installation

– Depend on the weather

– Not available anytime in the day

– Energy storage problems battery6 year lifetime

pollution

LAGAS NicolasLAMY JérômeNGUYEN Tu

II. Alternative energies

Geothermal energy

High and middle energy– Temperature > 90°C

– Produce electricity

Low and ultralow energy– Temperature < 90°C

– Heating systems

LAGAS NicolasLAMY JérômeNGUYEN Tu

II. Alternative energies

Advantages and Disadvantages of Geothermal

Pro– Economical power

– No stock needed

– Easy to maintain

– Ecological : save 60% of the heating bill

– Government helps

LAGAS NicolasLAMY JérômeNGUYEN Tu

II. Alternative energies

Advantages and Disadvantages of Geothermal

Cons

– Contain gas that could damage the ozone layer

– Noise of the compressor

– Cost of the installation

LAGAS NicolasLAMY JérômeNGUYEN Tu

III. A new project for a new start

• Some figures 10 kW consumed by computers 10 kW consumed for lighting 100 kW consumed by the heating/cooling system

Whole consumption : 120 kW 50 tons of CO2 rejected each year ! Expenses : 20000 € each year !

0,096 €/kWh0,9 €/l

ID Nb Power/unit (kWh) Global Power (kWh) Consumption (l/year) Price (€/year)Computers 100 0,1 10 x 2880Lights 200 0,05 10 x 2880Heating system 1 100 100 15000 13500

19260 €/year

Electric energy priceFuel price

LAGAS NicolasLAMY JérômeNGUYEN Tu

III. A new project for a new start

I. Swap the heating system by a geothermal power unit

• A lot of free space in

front of our firm

• Compacity of the

power unit

• Cost : 30.000 €

LAGAS NicolasLAMY JérômeNGUYEN Tu

III. A new project for a new start

II. Produce electricity with some solar panels

• Typical production

of solar energy :

400 kW/year/m²

10 m² needed

• Lack : bought

• Surplus : sold

• Cost : 50.000 €

LAGAS NicolasLAMY JérômeNGUYEN Tu

III. A new project for a new start

III.How does it work ?

• In summer :

as a cooling system

LAGAS NicolasLAMY JérômeNGUYEN Tu

III. A new project for a new start

III.How does it work ?

• In summer :as a cooling system

• In winter :As a heating system

• Annual consumption : 0 W !!!

LAGAS NicolasLAMY JérômeNGUYEN Tu

III. A new project for a new start

IV. Is it interesting ?

YES !

30 000 €50 000 €10 000 €

90 000 €

Geothermal power unit (100 kW) =Photovoltaïc power unit (10kW) =

Investments

Other expenses =

Energy price 0,096 €/kWhFuel price 0,9 €/l

ID Nb Power/unit (kWh) Global Power (kWh) Consumption (l/year) Price (€/year)Computers 100 0,1 10 x 2880Lights 200 0,05 10 x 2880Heating system 1 100 100 x 0

5760 €/year

Savings (€/year) 13500 €/year

Break-even point (years) 6,7 years

After

Energy price 0,096 €/kWhFuel price 0,9 €/l

ID Nb Power/unit (kWh) Global Power (kWh) Consumption (l/year) Price (€/year)Computers 100 0,1 10 x 43200Lights 200 0,05 10 x 43200Heating system 1 100 100 x 0

86400 €

Savings 202500 €

After 15 years

LAGAS NicolasLAMY JérômeNGUYEN Tu

IV. Going even further….

Why not creating a common power unit ?• Reduction of the investments• Higher efficiency• Being a model for other firms• Improve our public image• Saving more money !

LAGAS NicolasLAMY JérômeNGUYEN Tu

Do you want to save money ?

Do you want to save the world ?

Adopt renewable energies!