Hydro energy is a renewable energy source based on waterfalls, with special features, ensuring not only clean energy but also providing essential services for the energy system. Future development of the hydropower-dependent obligations assumed by Romania under the requirements of EU directives on the development of renewable energy sources (2009/28 / EC) on protection against floods (2007/60 / EC) and quality assurance of water bodies (EU Water Framework Directive).
In recent decades projects with multiple uses hydro energy projects were funded entirely by SC Hidroelectrica funds. This policy of the Romanian state was convenient from the point of view of saving budget funds but less convenient for the public sector, leading to long lead to higher prices and inherent investment.
Hydro energy resources are continuously regenerated by natural solar energy intake. The primary source of hydro energy is solar radiation and the water cycle. Sunlight evaporate particularly on the world’s oceans and clouds formed and laden with water vapor moves to dry under certain conditions condenses precipitation falling on land area and part of the volume of water forms surface runoff and some infiltrates . Runoff, concentrated as debit and fall, is valued as a source of hydro energy and hydro sources is evident.
In Europe hydro energy provides about 70% of all energy from renewable sources, and although most facilities are mature (having a certain age), there still remained enough potential to capitalize, either through the creation of new or the expansion and retrofitting. EU Directive on Renewable Energy has set an ambitious target of ensuring 20% of energy from renewable sources, thus boosting investment in renewable energy, with a large proportion of hydro energy.
In Romania occur in the hydrological environment around 18 TWh, as 35% of consumption, but with conversion potential is nearly double.
The draft Energy Strategy of Romania for the period 2011-2035 stipulates that potential hydro development is a sustainable alternative energy sector in Romania, considering the limited resources of energy raw materials of our country and the need to obtain cheap energy and which has no greenhouse gas emissions.
The advantages of using hydropower
• The economic advantage, high efficiency, low cost price, with a long life;
• ecological advantage, not pollute the environment.
• Sometimes the disadvantages of using hydropower can generate conflicts when placed in national parks or the water level of the dam covers localities.
• Change biotope surrounding land expropriations need in the way of construction, which can dry years the lake level drop dramatically.
• Small hydropower located on mountain rivers destroy biodiversity in protected areas, habitats, fish, otters and wildlife are threatened.
In Romania, the most advantageous way of generating electricity through hydropower is because there exist import requires no fuel and hydro system is well organized.
Romania has already achieved the objectives of energy production from renewable sources by 2020. At present, Romania produce a surplus of energy that, for technical reasons, can not store or transport it over long distances for export. According to recent statements of representatives of ANRE: target assumed by Romania in accordance with Directive 2009/28 / EC of energy from renewable energy sources in final energy consumption in 2020 (24%) was performed in 2010 at the 23.6%, Romania finishing in 2nd place among EU member states about the progress of the proposed target. In this context, Romania should focus on increasing energy efficiency (a sector in which our country has enormous potential unused) and promote those renewable energy sources with low impact on biodiversity.

Hydro Plant
Hydro Plant

Waves, another way to get green energy source using water all through the movement of waves or tides, is really no limit, being an inexhaustible source, as is the inexhaustible ocean. The seas shallow, enclosed on all sides by land, such as for instance the Baltic Sea waves rarely exceed a height of four to five meters, while in the ocean, especially in the southern hemisphere, where the circle of water covers the globe and waves can unleash their will and west winds blowing continuously without having to change direction, often meet 12-18 m high waves. colossal wave energy is manifested in their crash and she is very . Full use of wave energy is hampered by the fact that this source of energy is very uneven. Wave energy is used only when the waves are high and constant over time and other grounds of non-use and most importantly, the technique contemporary knows no plants with which could quite easily, quite complete and economically convert wave energy into electricity.

Benefits
• ecological advantage, not pollute the environment.
Disadvantages
• Sometimes you can generate conflicts are located in beach areas or tourist areas.
• Change biotope surrounding land expropriations need in the way of construction.

 

Hydro Plant who generate energy from waves
Hydro Plant who generate energy from waves