ADVANTAGES of RENEWABLE ENERGY

1. Indigenous energy sources , which are used near where it is produced , so that makes us independent of outside and generate more local employment. Reduce dependence on foreign energy is positive for autonomy against geopolitical conflicts , or big oil companies.

Two . Clean energy with minimal risk of contamination, without producing greenhouse gases or oil spills or hazardous waste ( such as nuclear ) . They are easy to dismantle and require guarding their waste for millions of years (eg nuclear ) .

Three . Energy safe , it is not comparable risk of a nuclear power plant with the risk of failure of a solar panel . And the waste can not be used for nuclear or dirty bombs .

April . Inexhaustible (renewable) energy , the sun , or the wind will be there for millions of years .

May . Different energies , they include solar (using different technologies ) , wind, small hydro , biomass, geothermal , marine ... which ensures its generation in different scenarios .

6. Energy responsible for the above, and because most respected natural resources, using less water , for example. Oil has useful applications without losing burning.

7. Personal energies , because they require large investments and large companies to produce a little electricity . Any citizen can easily become a producer of renewable electricity.

8. Cheap energy because we appreciate everything economically said : While it contaminate free, green energy do not play on equal terms with dirty and clean energy .

DISADVANTAGES OF RENEWABLE ENERGY

1. Irregularity and difficult storage : Depending on the source , it may be difficult to ensure operation at one time . In addition , the high cost of storing the energy produced , requires exaggerating the problem needs , ie installing more sustainable energy than necessary at the time of maximum consumption . This problem should be considered when most of our energy is sustainable , since by the time the problem is the reverse : Because nuclear power plants in Spain can not take full advantage of wind power installed. Moreover , technological advances will reduce this disadvantage : In Seville there is a solar plant that also works at night by molten salts.

Two . Specific problems for misuse : Depending on the power plant may be specific problems are not due to the technique, but to misuse . Not all renewable energy is environmentally friendly . Examples ( Damage to the landscape or birds in the case of poorly installed wind turbines ; Abuse agrofuels non-organic ( the misnamed bio -diesel ), which can divert valuable food resources to burn as fuel , and generate more CO2 in its production than they save ; . Construction of large dams ( dams) which cut the natural flow of the river and flooded surrounding ecosystems hydropower to be organic must come from small steps that only take part of the river water .