The document discusses the need for renewable energies as alternatives to traditional energy sources. It notes that conventional energies have negative consequences like excessive consumption, depletion of resources, pollution, and global warming. In contrast, renewable energies are inexhaustible and do not cause pollution or greenhouse gases. The document then provides examples of various renewable technologies like hydropower, solar photovoltaics, solar thermal, wind power, biomass, hydrogen, geothermal, and wave/ocean current. It also discusses the concepts of distributed energy generation using smaller local sources rather than large centralized plants, and microgrids which operate connected to but also semi-autonomously from the main grid. Energy production cooperatives are presented as a way for communities to

1. RENEWABLE ENERGIES
Francisco Roldán 2013

2. ENERGIES
 Power, Development
 Traditional Energy Sources
 It´s necessary

3. CONVENTIONAL ENERGIES
consequences
 Excessive fuel consumption
 Depletion of natural resources
 Overpopulation
 Pollution
 Global warming
Is it necessary?

4. RENEWABLE ENERGIES
 Inexhaustible energy sources
 Green energies:
 no pollution,
 no hazardous waste.
 no greenhouse gases.
 It is necessary!

5. RENEWABLE ENERGIES
HYDROPOWER

6. RENEWABLE ENERGIES
HYDROPOWER

7. RENEWABLE ENERGIES
SOLAR PHOTOVOLTAICS

8. RENEWABLE ENERGIES
SOLAR PHOTOVOLTAICS

9. RENEWABLE ENERGIES
SOLAR THERMAL ENERGY

10. RENEWABLE ENERGIES
SOLAR THERMAL ENERGY

11. RENEWABLE ENERGIES
WIND POWER

12. RENEWABLE ENERGIES
WIND POWER

13. RENEWABLE ENERGIES
BIOMASS ENERGY

14. RENEWABLE ENERGIES
BIOMASS ENERGY

15. RENEWABLE ENERGIES
HYDROGEN

16. RENEWABLE ENERGIES
HYDROGEN

17. RENEWABLE ENERGIES
OTHERS
 Geothermal Energy
 Waves Energy
 Ocean Current Energy

18. Distributed Energy Generation
 New concept of generation
 You can produce energy

19. Distributed Energy Generation
 Economy of  Distributed
scale generation
 Big Sources  Smaller sources
 Sources very far to the  Sources closer to the
consumption points consumption points
 Onl a few big  Anyone can be an
companies can can be energy producer.
energy producer.  Self consumption
 A big business
Always with Renewable
Hardly ever with conventional Energies
energies (fuel, nuclear, coal…)

20. Traditional Energy Generation
Conventional grid

21. Distributed Energy Generation.
Smart grid

22. Microgrid
A microgrid is a localized grouping of electricity generation,
energy storage, and loads that normally operates connected
to a traditional centralized grid (macrogrid).

23. Domestic microgrid

24. Energy production cooperatives.
Why don´t we produce our own energy?

25. Energy production in Spain.
Why don´t we produce our own energy?

26. Energy production cooperatives.
Community wind energy
Baywind Energy Co-operative UK
Westmill Wind Farm Cooperative UK
National Wind USA
Wind power Netherlands

27. Energy production cooperatives.
in Spain
www.somenergia.com/es