ENERGY CONSUMPTION

State Professional and Technical School

P.Sraffa Crema, Italy

Most used appliances in our homes

HAIR DRYER

OVEN

MICROWAVE OVEN

FRIDGE

VACUUM CLEANER

WASHING MACHINE

DISH WASHER

TOTAL NUMBER OF APPLIACES IN OUR 4 STUDENTS` HOUSES

N. 7 N. 8

N.4

N.4 N.8

N. 6

AND........

N. 10 N.15

TV CHARGES

TV WASHING MACHINE

DISHWASHER HAIRDRYER

PC STEREO SET/ HI-FI SYSTEM

OVEN DECODER

FRIDGE CHARGERS

AVERAGE ENERGY CONSUMPTION PER FAMILY

• To calculate the daily power consumption of our families and to obtain truthful data, we have computed the average cosumption over 6 days after having read our electricity meters.

ESTIMATED AVERAGE DAILY CONSUMPTION 7,8 KWH

ESTIMATED AVERAGE WEEKLY CONSUMPTION 55 KWH

ESTIMATED AVERAGE YEARLY CONSUMPTION 2870 KWH

ACTUAL AVERAGE DAILY CONSUMPTION 8,5 KWH

OBSERVATIONSWe have noticed that the estimated consumption is inferior to the real one, this because one of us has more appliances than the average.

AVERAGE APPLIANCES CONSUMPUTION PER WEEK

WHAT ABOUT OUR SCHOOL?

TECHNICAL DATA

SRAFFA ELECTRICITY CONSUMPTION MONITORING:

• ELECTRICAL ABSORPTION: 80 kWh• PHOTOVOLTAIC SYSTEM: GRID

CONNECTED WITH A POWER OF 18,90 Kwp• SOLAR PANELING: PROVIDING FOR ABOUT

THE 23% OF THE DEMAND, CONSISTING OF 105 PHOTOVOLTAIC MODULES WITH A SURFACE AREA OF 137 SQ2.

TECHNICAL CONCLUSIONS

• OUR SOLAR PANELING PRODUCES 411 kWh IN A WEEK

• THE YEARLY AMOUNT IS OF 21,400 kWh, AVOIDING THE RELEASE INTO THE ATMOSPHERE OF 0.65 KG OF CO2 FOR EACH kWh OF THE ENERGY PRODUCED (ABOUT 15,000 KG A YEAR)

• THE ELECTRICAL CONSUMPTION PER WEEK IS OF 1128 kWh

HOW R YOU?

REUSEREPLACE

REDUCE

RECYCLE

Save Energy – Turn Off and Unplug!

Unplug the“ENERGY VAMPIRES.”

Even if they are turned off they still use a small amount of electricity calledPHANTOM LOADS.

REMEMBER!!:unplug small electronics (radio, toaster,hairdryer) when you are not using them

R for REUSE & RECYCLE

Write on both sides of your

paper.

Use economic papers to wrap

gifts.

Give your old clothes and toys

to someone who needs them.

Don’t throw away anything

you can recycle

REUSE: use again, for other

purposes/goals

REPLACE

• Seal the leak • A leaky toilet can

waste more than 10,000 gallons of water a year.

• Make sure the door OF YOUR FRIDGE closes securely.

Use energy-saving appliances and light bulbs. Compact fluorescent lamps (CFLs) Turn off lights when you leave a room. Turn off TV, video games, and computer when

you aren’t using them. Unplug appliances when they are not being

used. Control heat & cooling with the thermostat. Use natural light and heat. Open blinds &

curtains to let in sunlight to warm your home and close them to prevent unwanted heat.

Take shorter showers.