alternative energy. alternative energy solar energy sun is an unlimited source of energy sun sends...
TRANSCRIPT
![Page 1: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/1.jpg)
Alternative energy
![Page 2: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/2.jpg)
Alternative EnergySolar Energy
• Sun is an unlimited source of energy
• Sun sends to earth 15 000 times more energy than we produce
• We collect solar energy using solar cells, which are quite expensive. On average, 100cm2 of solar panels produce 0,5V of electricity
![Page 3: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/3.jpg)
Alternative EnergySolar Energy
• There are not many solar power plants plants here in Slovenia
• By the year 2010 they will produce 6,5MW, which is 4,5% of all the electricity produced in Slovenia
• Carinthia region has too little sun exposure for producing large amounts of solar energy
• A lot of potential in the Karst region• There are possibilities for individual households
![Page 4: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/4.jpg)
Alternative EnergySolar Energy
• Good:• It is friendly for environment• It can be used on remote locations
• Bad:• Problems with sun light on northern and southern
hemisphere• Producing solar power is more expensive than
other energy
![Page 5: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/5.jpg)
![Page 6: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/6.jpg)
Alternative EnergyHydroenergy
• Very clean
• Renewable energy
• No CO2 emissions
• Production of around 20% of all electricty
![Page 7: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/7.jpg)
Alternative EnergyHydroenergy
• In Slovenia we have good potential for building these kinds of plants, but the total power produced from hydroeletric plants is only 3,8%
• There are 25 larger hydroelectric plants in Slovenia and a lot of smaller ones
• 4 larger plants in the Carinthia region
![Page 8: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/8.jpg)
Alternative EnergyHydroenergy
• Good:• Very clean• Quite cheap (building is the biggest expense)• Can be stopped anytime• They can be used for up to 100 years
• Bad:• Destruction of the natural habitat of animals and
plants that live in the river• Erosion• Big accumulative lakes
![Page 9: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/9.jpg)
Altrenate EnergyWind Energy
• Clean and renewable
• Not frequently used in Slovenia because of low amount of wind and environmential issues (hazard for birds)
• Wind power plant in Volovja Reber
• Big potential:– In the Karst region– on Pohorje
![Page 10: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/10.jpg)
Alternative EnergyGeothermal Energy
• Cheap energy
• There is a lot of fault lines in Slovenia
• Big potential in the Carinthia, Prekmurje and Celje regions
• Used for heating in spas (for example, Moravske Toplice)
![Page 11: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/11.jpg)
Alternative EnergyBiomass
• Firewood– A lot of potential because of vast amount of forest
(including in the Carinthia region)
– CO2 emissions
• Biodiesel– Produced from cooking oil, grease…– Production in Lendava
• Compost– Production of biogas from compost piles in Letuš
![Page 12: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/12.jpg)
Experimental work
![Page 13: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/13.jpg)
Experimental work
• Measurements:– Toilet kettle volume– Light luminosity
• Calculations:– Water saved if toilet kettle size is reduced– Energy saved if solar collectors/panels are used
![Page 14: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/14.jpg)
January February March April May June July August September October November December
0
200
400
600
800
1000
1200
1400
2008
2009
Comparison of expenses between 2008 and 2009
![Page 15: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/15.jpg)
Water• Mostly used for flushing toilets, for which
rainwater could be used (10L per flush)• Toilet kettle could be reduced in size
– 3L smaller kettle would save about 400m3 of water each year
• Average annual consumption: 1500m3
• Possible rainwater collection:– Annual rainfall: 1200mm (1.2m)– Roof surface: 1200m2
– Water collection prediction: 1440m3/year• Self-sufficiency!
![Page 16: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/16.jpg)
![Page 17: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/17.jpg)
Heating
• Average annual consumption: 280MWh– 30000 EUR/year
• Price is rising because of inflation
• Solar collectors could be placed on the roof– Sun-side part of the roof is 600m2
– Self-sufficiency: 300m2
• Investment up to 250000 EUR– Returned in 5 years
![Page 18: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/18.jpg)
Electricity• Average annual consumption: 170MWh
• A single copier uses 1500W of electricity while turned on - even if idle– Same as a whole room
• Solar panels– Sun-side part of the roof is 600m2
– 300m2 would be enough for self-sufficiency• Investment up to 600000 EUR
– Reduced further by country grants– Returned in 10-12 years– Electricity could be sold for triple the purchase price
(additional income for the school)
![Page 19: Alternative energy. Alternative Energy Solar Energy Sun is an unlimited source of energy Sun sends to earth 15 000 times more energy than we produce We](https://reader033.vdocuments.us/reader033/viewer/2022051619/56649d8c5503460f94a73e67/html5/thumbnails/19.jpg)