Saving EnergySaving Energy

How can we live better by How can we live better by spending and wasting as spending and wasting as

low as possible?low as possible?

What does What does SAVINGSAVING mean? mean?

Saving means to reduce Saving means to reduce the utilization of primary the utilization of primary energy, increasing energy, increasing energetical efficienncy or energetical efficienncy or reducing consumptions.reducing consumptions.

Five reasons to save energy:Five reasons to save energy:

Paying cheaper bills;Paying cheaper bills; Participating in the national effort to reduce Participating in the national effort to reduce

the consumptions of fossils fuels;the consumptions of fossils fuels; Permitting to countries to became more and Permitting to countries to became more and

more independent;more independent; Improving the quality of life and of Improving the quality of life and of

enviroment.enviroment. Contributing to reduce the emissions of Contributing to reduce the emissions of

polluting gas.polluting gas.

According to the latest date(2009), in Italy the According to the latest date(2009), in Italy the sector which utilizes more energy is industry, sector which utilizes more energy is industry, followed by the civil sector, then transports and followed by the civil sector, then transports and other sector.other sector.

Energy Use

34%

25%

33%

8%

Industry

Trasports

Civil

Other

One exemple of saving energy in One exemple of saving energy in trasport sector is the utilization of trasport sector is the utilization of hydrogen cars…hydrogen cars…

In California the first hydrogen car In California the first hydrogen car was projected and tasted. was projected and tasted. Unfortunatly, the costs are very high Unfortunatly, the costs are very high because of the few cars, only because of the few cars, only circulating in south California.circulating in south California.

… … or electrical cars (already utilized or electrical cars (already utilized in many countries)in many countries)

These are exemples og elettrical cars already present on the market.

If we compare the costs of petrol and dieses cars in different countries with the new hydrogen car and the electrical cars already circulating, we have following chart:

Car Manufactoning country

Type of motor

Cost of the car

Fiat 500 Italy Petrol 11.500 €

Seat Leon Spain Diesel 13.500 €

Saab Norway Diesel 15.000 €

Audi TT Germany Petrol 30.000 €

Honda FCX Clarity

California Hydrogen 442 € al mese per 3 anni

Tesla Roadster

USA Electrical 58.912 €

In the Civil sector on the In the Civil sector on the contrary, it is possible to contrary, it is possible to work intensively on the work intensively on the buildings (private and buildings (private and

public buildings, school…)public buildings, school…)

Here above we can see an energetical classification of buildings and equipments adopteted by the E.U. On the right side a chart of utilization of energy in buildings.

Low Consumptions

Energy  

Manufacturer Type

LOGOABC123

Other Consumptions

Energy Consumption kWh(Assumption Yearly Cycles)

XYZ

Specific Parameters Electrodomestic ABCD

NoisedB (A) re 1 pW

XY

EN norm

Twenty simple rules to save Twenty simple rules to save energyenergy

1. Never set heating on more than 20° C;

2. Never set the temperature of boilers on more than 60° C;

3. Use of fluorescent bulbs;

4. Switch off unnecessary lights;

5. Avoid stand-by function on electrical equipments;

6. Replace used household appliance with high-efficency ones;

7. Go downstairs and not use the left (if possible!);

8. Save kitchen gas utilizing pressure cookers;

9. Utilize rationally washing machines and dishwasher;

10. Prefer shower to bath;

11. Nerver lower fridge temperature under 3° C;

12. Avoid opening and closing too often the fridge;

13. Switch of battery changer after having changed;

14. Clean bulbs, reflectors and dust diffusors;

15. Paint and papre interior walls light colours;

16. Avoid using indirect or too shaded lights;

17. Reduce draughts by isolating;

18. Instale thermoisolated glass;

19. Often let boilers be serviced;

20. Utilize cars as little as possible.

At home and at schools it is possible to save energy and reduce costs in many ways, for example:

Double glazing

Thermoisolation Time

thermostat

Condensation boilers

Fluorescent bulbs

In order to save in the above mentioned sectors it is possible In order to save in the above mentioned sectors it is possible to use alternative equipments, such as for example:to use alternative equipments, such as for example:

Photovoltaic plants

Thermal solar panels plants

Aeolian plants Hydroelectrical plants

Geothermical Plants Biomass plants

Photovoltaic plants

- They permit to transform solar power in electrical power without using fuel;

- It is possible to produce electrical energy in the same place where it is consumed ;

- The plants can be widened ;

- Low cost servicing .

- Low environmental impact ;

Thermal solar panels plants

- Producing hot water reducing use of fuels ;

- Minimal managing and servicing costs ;

- Most common application : solar manifold .

Aeolian plants

- Wind is an inexhaustible energy source ;

- Wind does not produce waste ;

- Wind does not pollute ;

- Electrical energy is generated by transforming mechanical energy produced by the blades of the aerogenarators .

Hydroelectrical plants

- The energy of water is relatively large and clean. It is produced by transforming hydraulic energy in mechanical energy by turbines which themselves move the alternators for the production of electrical energy.

Geothermical plants

- It is an inexhaustible energy source;- It’s does not pollute;- Plants do not ask for large surface of land;

- They are based on utilization of the subsoil which we extract the heat;

- Not utilization of boiler and refrigerator ;

Biomass plants

- Biomass are renewable energy;

- They can find use as combustible;

- They can be used in the production of electricity,heat and tractions.