1. Alternative Energy Sources
Slovenia
Viribus Unitis - help the world with joint efforts
4th meeting, Baktay Ervin Gimnázium ,
Dunaharaszti, Hungary, 4 - 11 October, 2013
www.viribusunitis.org
www.viribusunitis.blogspot.com

2. BIOENERGY
Tilen Resnik, 3.G
Tom Maierle, 2.E

3. WHAT IS BIOENERGY?
• A renewable energy made from biological sources.
• We divide bioenergy into:
- “Biowarm” or thermal energy,
- “Bioelectricity” or electricity from biomass,
- Biofuels (solids, liquids and gases).

4. WOOD BIOMASS IN SLOVENIA
• 10.900 km² of forests in Slovenia (60%)
• More than 100,000 buildings

5. BIODIESEL
• Produced from left-over food products,
• Biodiesel consumption in Slovenia:
- 2008: at least 2%,
- 2009: at least 3,0 %,
- 2010: at least 3,5 %,
- 2011: at least 4 %,
In the 5 years after the year 2011: at least 5% of
energy.

6. BIOETHANOL
• An alcohol from organic materials.
• No transport on bioethanol in Slovenia.

7. CHARCOAL
• New way of direct processing.
• Used for cooking and heating, producing synthetic
gas, etc.
• We have charcoal producton in Pohorje and
Koroška.

8. METHANE
• Methane is a chemical compound with the
chemical formula CH 4.
• Vehicles on methane gas are more eco.
• We have buses on methane gas.
• 2010: first car in Slovenia

9. COGENERATION OF HEAT AND
ELECTRICITY
• Production of heat and electricity at the same time .
• New technology already commercially interesting

10. THE PRODUCTION OF HEAT
• Local heating: wood, pellets, wood chips, etc.
• District heating: wood chips, peat, fuel from waste
wood, sawdust, and straw.

11. SOLAR POWER
Patricija Arh 2.C
Maja Štojs 2.C
Monika Novak 3.D

12. WHAT IS SOLAR POWER?
• Inexhaustible and renewable source of energy,
• Electromagnetic waves,
• Part of the natural energy flows.

13. SOLAR POWER PLANTS IN SLOVENIA
• 3215 operating solar power plants,
• The best conditions are in the Primorska region.

14. SOLAR POWER PLANTS IN SLOVENIA
• Total output of 3,6 MW,
• The strongest area represented in the Štajerska
region.

15. SOLAR PANELS
• Utilization of solar energy,
• Heating buildings and water,
• Fragility

16. KEY BENEFITS OF THE USE OF
SOLAR ENERGY
•
•
•
•
Inexhaustible source of energy,
Low maintenance costs,
Lower consumption of fossil fuels,
Reduction of CO2 emissions.

17. USE OF SOLAR ENERGY
• Passive - solar system

18. USE OF SOLAR ENERGY
• Active - solar panels

19. USE OF SOLAR ENERGY
• With photovoltaics - solar cells

20. SOLAR ENERGY IN SLOVENIA
• Substantial and far-reaching advance,
• 400 new solar plants in 2010,
• The primary promoter is the Slovenian photovoltaic
industry association.

21. SOLAR ENERGY IN SLOVENIA
• Pipistrel – plane on hydrogen power cells

22. HYDRO & GEOTHERMAL
ENERGY
Matej Kokalj, 3. F
Jan Dežman, 4. C

24. HYDROELECTRIC ENERGY
GEOTHERMAL ENERGY

25. GEOTHERMAL ENERGY
• Heat from the Earth,
• Clean and sustainable,
• Technologies taking advantage of geothermal
energy.
•
•
•
•
Energy plants:
dry steam power plants,
flash steam power plants,
and binary cycle power plants.

26. DRY STEAM PLANTS
• Simplest & oldest design,
• Geothermal steam of 150°C or greater to turn
turbines.

27. FLASH STEAM PLANTS
• Flashed steam used to drive turbines,
• Requirement of fluid temperatures of at least 180°C,
• Most common type of plants.

28. BINARY CYCLE POWER PLANTS
• Most recent development,
• Acceptance of fluid temperatures as low as 57°C.

29. GEOTHERMAL ELECTRICITY

30. GEOTHERMAL ELECTRICITY

31. BENEFITS
• Emissions contain few chemical pollutants and little
waste,
• Geothermal electricity sold to local power grids,
• Clean energy for some of the world‟s most rapidly
expanding economies.

32. HYDROELECTRIC ENERGY
• Energy from hydropower or water power,
• Usage of the Earth's water cycle to generate
electricity,
• High precipitation levels and large elevation
changes necessary to
generate significant quantities
of electricity.

33. ALTERNATIVE ENERGY PLANTS IN
SLOVENIA
• Hydroelectric plants such as Blanca, Boštjan,
Maribor, Medvode, Moste, and Vrhovo.

34. HYDROELECTRIC PLANT MARIBOR
• Largest Slovenian producer of electric power using
renewable resources,
• Generating 25,5 % of electric power in Slovenia,
• 80 % of Slovenia‟s electric power using renewable
energy sources,
• Electric power generated in an
environmentally friendly manner.

35. HYDROELECTRIC ENERGY ADVANTAGES
• Electricity can be constantly produced, once a
dam is constructed,
• Dams designed to last decades,
• Not producing any green house gases.

36. HYDROELECTRIC ENERGY
DISADVANTAGES
• Dams extremely expensive to build,
• Dams must be built to a very high standard,
• People forcibly removed so that hydro-power
schemes can go ahead.

37. SOLVING PROBLEMS
• Limit the use of fossil fuels,
• Expand the usage of alternative fuels,
• Slowing down the degradation of the destruction of
our atmosphere.

38. ENVIROMENTAL ISSUES IN SLOVENIA
• Greenhouse emissions caused by traffic in decline
since 2008,
• Biggest state investments focused on state roads,
• Biofuels accounting for 2% in Slovenia,
• Air quality problematic, as the biggest problems
being nitrogen oxides and dust particles.

39. WIND ENERGY
Jaka Zorman, 3.f
Špela Pozvek, 3.c

40. HISTORY

41. JAMES BLYTH
• First attempt,
• 1887,
• For the production of hydrogen.

42. MODERN WIND TURBINES
• Kuriant, Nordtank, and Bonus,
• 20 – 30 KW

43. TODAY

44. TODAY WIND TURBINES
• Enercon E-126
– 8 MW
• Other
– 3 MW

45. TYPES

46. WIND FARMS
• Alta Wind Energy Center (USA),
• 1,320 MW

47. HOW IT WORKS

48. ADVANTAGES
•
•
•
•
Clean energy,
Does not destroy the working surfaces,
Money back in 14 years,
Lasts 25 years.

49. DISADVANTAGEs
• Danger to birds,
• Requires more conventional power plants to
address variability,
• Wind turbines are noisy.

50. FACTS
• In 2010 all wind turbines generated 197 GW,
• Today they generate 430 THW, which is 2.5% of
global electrical energy consumption,
• In the last five years, the annual growth of new
plants was 27.6 percent.

51. FIRST BIG SLOVENIAN WIND TURBINE
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•
•
•
Dolenja vas near Senožeče,
29.9.2012,
Enercon E-70,
2,3MW

52. PROBLEMS IN SLOVENIA
• For cottages„ energy,
• Documentation and licenses,
• Natural heritage

53. THANKS FOR YOUR
ATTENTION!