Alternative Energy SourcesSlovenia

Viribus Unitis - help the world with joint efforts

4th meeting, Baktay Ervin Gimnázium ,

Dunaharaszti, Hungary, 4 - 11 October, 2013www.viribusunitis.org

www.viribusunitis.blogspot.com

BIOENERGY

Tilen Resnik, 3.G

Tom Maierle, 2.E

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).

WOOD BIOMASS IN SLOVENIA

• 10.900 km² of forests in Slovenia (60%)

• More than 100,000 buildings

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.

BIOETHANOL

• An alcohol from organic materials.

• No transport on bioethanol in Slovenia.

CHARCOAL

• New way of direct processing.

• Used for cooking and heating, producing synthetic

gas, etc.

• We have charcoal producton in Pohorje and

Koroška.

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

COGENERATION OF HEAT AND

ELECTRICITY

• Production of heat and electricity at the same time .

• New technology already commercially interesting

THE PRODUCTION OF HEAT

• Local heating: wood, pellets, wood chips, etc.

• District heating: wood chips, peat, fuel from waste

wood, sawdust, and straw.

SOLAR POWERPatricija Arh 2.C

Maja Štojs 2.C

Monika Novak 3.D

WHAT IS SOLAR POWER?

• Inexhaustible and renewable source of energy,

• Electromagnetic waves,

• Part of the natural energy flows.

SOLAR POWER PLANTS IN SLOVENIA

• 3215 operating solar power plants,

• The best conditions are in the Primorska region.

SOLAR POWER PLANTS IN SLOVENIA

• Total output of 3,6 MW,

• The strongest area represented in the Štajerska

region.

SOLAR PANELS

• Utilization of solar energy,

• Heating buildings and water,

• Fragility

KEY BENEFITS OF THE USE OF

SOLAR ENERGY

• Inexhaustible source of energy,

• Low maintenance costs,

• Lower consumption of fossil fuels,

• Reduction of CO2 emissions.

USE OF SOLAR ENERGY

• Passive - solar system

USE OF SOLAR ENERGY

• Active - solar panels

USE OF SOLAR ENERGY

• With photovoltaics - solar cells

SOLAR ENERGY IN SLOVENIA

• Substantial and far-reaching advance,

• 400 new solar plants in 2010,

• The primary promoter is the Slovenian photovoltaic

industry association.

SOLAR ENERGY IN SLOVENIA

• Pipistrel – plane on hydrogen power cells

HYDRO & GEOTHERMALENERGY

Matej Kokalj, 3. F

Jan Dežman, 4. C

HYDROELECTRIC ENERGY

GEOTHERMAL ENERGY

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.

DRY STEAM PLANTS

• Simplest & oldest design,

• Geothermal steam of 150°C or greater to turn

turbines.

FLASH STEAM PLANTS

• Flashed steam used to drive turbines,

• Requirement of fluid temperatures of at least 180°C,

• Most common type of plants.

BINARY CYCLE POWER PLANTS

• Most recent development,

• Acceptance of fluid temperatures as low as 57°C.

GEOTHERMAL ELECTRICITY

GEOTHERMAL ELECTRICITY

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.

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.

ALTERNATIVE ENERGY PLANTS IN

SLOVENIA

• Hydroelectric plants such as Blanca, Boštjan,

Maribor, Medvode, Moste, and Vrhovo.

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.

HYDROELECTRIC ENERGY ADVANTAGES

• Electricity can be constantly produced, once a

dam is constructed,

• Dams designed to last decades,

• Not producing any green house gases.

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.

SOLVING PROBLEMS

• Limit the use of fossil fuels,

• Expand the usage of alternative fuels,

• Slowing down the degradation of the destruction of

our atmosphere.

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.

WIND ENERGY

Jaka Zorman, 3.f

Špela Pozvek, 3.c

HISTORY

JAMES BLYTH

• First attempt,

• 1887,

• For the production of hydrogen.

MODERN WIND TURBINES

• Kuriant, Nordtank, and Bonus,

• 20 – 30 KW

TODAY

TODAY WIND TURBINES

• Enercon E-126

– 8 MW

• Other

– 3 MW

TYPES

WIND FARMS

• Alta Wind Energy Center (USA),

• 1,320 MW

HOW IT WORKS

ADVANTAGES

• Clean energy,

• Does not destroy the working surfaces,

• Money back in 14 years,

• Lasts 25 years.

DISADVANTAGEs

• Danger to birds,

• Requires more conventional power plants to

address variability,

• Wind turbines are noisy.

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.

FIRST BIG SLOVENIAN WIND TURBINE

• Dolenja vas near Senožeče,

• 29.9.2012,

• Enercon E-70,

• 2,3MW

PROBLEMS IN SLOVENIA

• For cottages„ energy,

• Documentation and licenses,

• Natural heritage

THANKS FOR YOURATTENTION!