Photos Festivert

12th FESTIVERT 2017

The brothers GUISSE in collaboration with ANER organized the 12th edition of the FESTIVERT on 19, 20, 21 May 2017 at Hann Park.

The theme of this edition was "Promoting renewable energies for sustainable development".

The objectives of FESTIVERT 2017 were:

raise awareness among the general public and especially young people about the importance of renewable energies for the protection of the environment.

promote renewable energies and sustainable development as credible alternatives for the protection of the environment.

promote clean energy initiatives in Senegal

promote environmental education, to promote activism among children.

The opening ceremony was chaired by the Secretary General of the Ministry of Environment and Sustainable Development of Senegal and the panel led by ANER, AEME, ENDEV and SENELEC.

The last two days of FESTIVERT were devoted to eco-civic activities: Hann schools contest on environmental education and symbolic gift giving to the 100 best students with the support of the Environmental Education Center, activities sports, education and culture.

On the sidelines of the festivities, ANER and partner structures exhibited their equipment and renewable energy equipment.

Journalists Awareness Workshop

Journalists Awareness Workshop

The National Agency for Renewable Energies in collaboration with ENDA Energie held this Wednesday, February 14, 2018 at the hotel Good Rade a sensitization and training workshop on renewable energy and energy efficiency for journalists. This activity is part of the development of its communication plan and follows a first edition organized in December 2016. The main objective of this workshop was to inform and sensitize journalists on the potential of renewable energies in Senegal as well as on national and regional policies in this field, with a view to encouraging them to take better ownership and to optimize their use. media treatment. This space of reflection and sharing of ideas has thus enabled the capacity of journalists to be strengthened so that they can become more involved in the implementation of the actions planned for access to clean energy by the population. The following topics were addressed by experts from ANER and ENDA Energie: General presentation ACEWA Project Objectives of the workshop Presentation of the international context of Renewable Energies Definitions of key concepts The renewable energy development policy potentials issues Axes of development projects and programs The role of the media in promoting renewable energies Also planned were group work for the establishment of a network of journalists specialized in renewable energy. At the end of the session, the organizers reiterated their willingness to accompany the journalists in the development of the network program whose formalization is planned for the end of March 2018 but also, they are committed to make accessible all information related to the sub-sector renewable energies.

WEST AFRICAN SUMMIT ON RENEWABLE ENERGY

WEST AFRICAN SUMMIT ON RENEWABLE ENERGY

From July 12 to 14, 2017 at the Radisson Blu, Dakar hosted the first edition of the exhibition on
Renewable Energies organized by the Vale Media Group in partnership with ANER. This meeting
which saw the participation of regional and national institutions of the ECOWAS area,eminent 
experts as well as large industrial groups evolving in the sector of Energy, had as theme 
"Meeting the technological, financial and regulatory challenges to achieve the energy objectives 
of ECOWAS ". It helped to address the issues related to investment in renewable energy projects
and to present the opportunities that exist in this sector.

SENSIBILITY DAY IN ZIGUICHOR

SENSIBILITY DAY IN ZIGUICHOR

As part of its mission to promote renewable energies in all sectors of activity, the National Agency for Renewable Energies in collaboration with the Ziguinchor City Council organized Awareness and Exchange Days on renewable energies. and December 21, 2017 in Ziguinchor. A caravan of sensitization furrowed the city of Ziguinchor and the surrounding communes (Oussouye, Bignona, Cape Skirring …) during all the day of December 20th. The second day was marked by different activities namely: A panel under the theme “The role of renewable energies in local development” with presentations on: Opportunities and potential of renewable energies in the Ziguinchor region (ANER) The place of renewable energies in the municipal energy policy (Town Hall of Ziguinchor City) Opportunities and challenges of Renewable Energy training (Assane Seck University) Solutions for local development: Example of the Biodigester with (National Biogas Program) Energy efficiency for economic growth (Agency for the Economy and Energy Management) The signing of an agreement between ANER and the Ziguinchor Regional Council for the local promotion of Renewable Energies. An official ceremony of handing over the solar dryers installed by ANER for the benefit of women processing fish products at Ziguinchor Fishing Pier. An exhibition of renewable energy materials and equipment and demonstration sessions open to the general public on the esplanade of Governance.  These activities were an opportunity for ANER to conduct a local campaign for the general public and local authorities in Ziguinchor.

sev-siera

Green Economy Fair of the OIC Member States (SEV) and International Fair of Renewable Energy and Environment in Africa (SIERA)

Senegal hosted from 26 to 29 October 2017 at the CICES the 1st edition of the Green Economy Fair of the OIC Member States and the 7th edition of the International Exhibition of Renewable Energies in Africa (SEV-SIERA). An event organized by the Islamic Center for the Development of Trade (ICDT) and the National Agency for Renewable Energy (ANER) in collaboration with EXCAF Events, under the auspices of the Ministry of Environment and Sustainable Development and the Ministry of Oil and Energies of the Republic of Senegal. It is a fair that has been opened to the participation of specialized entities in the green economy sectors, to international organizations and NGOs operating in the field of the environment etc. It was also a forum for exchanges and a business opportunity between different manufacturers, researchers and trainers, as well as the donors who came to support the actors and project leaders. It was an event that brought together stakeholders in the sector to discuss the development of renewable energies. Participants were able to discuss cross-cutting issues related to the subsector.

What future for solar energy?

Between hopes, disappointments and spectacular advances, research around photovoltaic solar energy is progressing fast. Overview of the most promising trends with Daniel Lincot

and Pere Roca i Cabarrocas, CNRS research directors and photovoltaic specialists.

The photovoltaic effect, discovered in the nineteenth century, is based in part on the properties of semiconductor materials present in solar panels. How do you work to improve them?
Daniel Lincot1: Research on solar photovoltaic energy is a team effort. The goal is to make more efficient solar cells that better convert sunlight into electricity at lower cost. To increase the efficiency of the photovoltaic cells, it is necessary to improve the semiconducting properties of each of the materials present in the cell, such as silicon, but also their combinations. A photovoltaic cell is a bit like a football team! It must form a whole: there is the individual and the collective. The materials must be better at personal titles, but also able to pass electrons between them.

Pere Roca i Cabarrocas2: When trying to improve performance or cost, every small detail counts. Photovoltaic solar research is truly an open and dynamic branch that integrates physics, electronics, chemistry, materials science and optics. To improve solar cells, we need this multidisciplinary approach.

D. L.: And research is moving fast. When the first silicon cells were developed in the 1950s, their efficiency dropped in the space of a few years from almost 0% to more than 10%. Today, theoretically, it is estimated that it could one day reach 85%! This proves that, in terms of photovoltaics, we are still under foot …

Every day, the sun supplies Earth with an average of 3 kilowatt hours per square meter. This energy seems inexhaustible. So what are the locks that still limit its development on a large scale?
P. R. C.: Contrary to what we think, solar energy is already viable and competitive. In France, EDF is pushing its consumers to become themselves producers of solar electricity. And in many other countries, solar is competitive with other energies.

D. L .: Locks are almost all lifted on a global scale. With Solar Impulse alone, we have shown that we can alternate day and night, and solve some energy storage problems. All these locks simply stand up by the demonstration. The only obstacle is that we would have to go even further … In France, we are still confronted with economic, political and cultural obstacles.
In contrary
to what we think,
solar energy
is already viable
and competitive.

P.C .: Solar Impulse has illustrated that there are solutions and that with intelligent energy management, we can do it. There are even more convincing examples, but less media, that prove the potential of photovoltaics. With solar, we can imagine creating wealth in the countries of the South, which would sell their solar energy. It is a utopia that becomes achievable.

Silicon, used since the 1960s to power space satellites, is still today the flagship material of solar panels. Why is he still not perfect?
D.L .: The silicon industry accounts for 90% of the solar energy market. Its principle is simple. It consists of cutting silicon ingots into wafers to then form photovoltaic cells capable of transforming the energy of the sun into electricity. The problem is that silicon needs a lot of thickness to fully absorb sunlight.

P. R. C.: The record yield of silicon is 26.33% in the laboratory, we must do more! We know that we can go beyond 60% yield with advanced concepts such as multijunctions. In any case, no principle of physics prevents us. The better the photons are trapped, the better the yield is.
Silicon wafer, solar energy, photovoltaic
Silicon wafer which, after various operations, will be transformed into a photovoltaic cell.
C.FRESILLON / CNRS PHOTOTHEQUE
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To improve the performance of solar panels, should we consider finer materials?
D. L.: It’s not really a question of performance but rather of process and cost. This is the challenge of the so-called thin film sector, which accounts for around 10% of the market share. It is composed of three types of semiconductor materials: cadmium telluride, Cigs3 and silicon in thin layers. This consists of covering a support with a thin layer of one of these materials. Photovoltaic cells become 100 times thinner

 

Plaquette de silicium, énergie solaire, photovoltaique

 

Have some lines of research been abandoned over time?
D. L .: Yes, there are almost extinct channels. A few years ago, it was believed, for example, copper sulphide, because it is abundant in nature, non-toxic and absorbs light in a remarkable way. In the 1980s, it was the Grail. Except that the cells were not stable enough and degraded in a few days.

P. R. C.: Other areas are a little overdue, like that of organic photovoltaic cells. There was a boom in the 2000s, which quickly fell. In fact, the researchers who worked in this branch abandoned it in favor of the perovskites. It is true that some organic cells still have problems of stability, yield and cost. But this is not a sector to avoid, because it concerns specific markets.

Are the recycling and lifespan of photovoltaic cells also part of the specifications for solar research?
D. L.: This is very important. We analyze the life cycle of cells, from the mine to recycling. We expect lifetimes of twenty to thirty years or more. So we could even consider bequeathing solar panels legacy!

P.C .: The recycling market is developing very well. The “energy return time” of a cell is only one or two years. That is, in that time you will have produced the same amount of energy that you spent on making the cell. You will have “paid off” the energy. The twenty or thirty years of life after, it’s a bonus!

You are both involved in the IPVF, which will bring together more than 200 researchers around solar energy. What are his ambitions for the future?
P. R .: Research on solar photovoltaic in France is among the best in the world, but we have little visibility. IPVF brings us a spotlight. And it also makes it possible to bring together the different sectors: thin layers, silicon, perovskites …

D. L.: The creation of the IPVF makes it possible to prepare the future for our country. We believe that the key decade is 2020-2030. It will be the solar years, the switchover. It is estimated that, during this period, the solar power generation capacity will exceed the terawatt! The flagship “30/30/30” goal of the IPVF would be to achieve 30% return at 30 cents per watt in 2030. For this, this structure offers remarkable opportunities for public-private synergies, in associating at the same time academic partners such as the CNRS or the École Polytechnique, major industrialists, such as EDF, Total and Air Liquide, but also smaller ones like Horiba Jobin Yvon or Riber. The CNRS is at the heart of this construction, it is a great pride for us and also a great responsibility.

Energie solaire, photovoltaiqueSolar panels covering roofs of homes in the Deer Valley neighborhood, in Phoenix, Arizona.
J.LOTT / New York Times-REDUX-REA
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Today, solar energy represents only 1% of the energy produced in the world. In time, will solar manage to surpass fossil energies?
P. R. C.: Of course, yes! While coal seems cheaper, it is because we do not take into account all the long-term costs of health and the environment. Solar is already largely competitive in many parts of the world, like Arizona. The future is not in fossil energy, although the transition will obviously not happen next year. Solar energy can charge the battery of a laptop as well as provide the energy needed for an entire village, it is extremely flexible. And solar is an unlimited and cheap resource.
D.L .: In about twenty years, solar energy will most likely supplant conventional energy systems. Already today, photovoltaics is approaching in some countries the 10% of electricity supply. We will learn how to adapt our energy production to the seasons, for example by promoting solar in summer and wind or hydro in winter. The system is finally balanced … When we work on solar energy, we are necessarily guided by the idea that it is good for humanity.

source: https://lejournal.cnrs.fr/articles/quel-futur-pour-lenergie-solaire

 

What is renewable energy?

An energy is said to be renewable when it comes from sources that nature is constantly renewing, as opposed to non-renewable energy whose stocks are depleted….

Renewable energies come from 2 major natural sources: the Sun (at the origin of the cycle of water, tides, wind and plant growth) and the Earth (which gives off heat).

Nicknamed “clean energies” or “green energies”, their exploitation generates very little waste and polluting emissions but their energy power is much lower than that of non-renewable energies.

From 2000 meters altitude to 2000 meters underground, discover some of the renewable energies.

 

 

source: https://www.edf.fr/groupe-edf/espaces-dedies/l-energie-de-a-a-z/tout-sur-l-energie/le-developpement-durable/qu-est-ce-qu-une-energie-renouvelable

What is solar energy?

Solar energy is a source of energy that depends on the sun. This energy makes it possible to manufacture electricity from photovoltaic panels or solar thermal power plants, thanks to the sunlight captured by solar panels.

The sun, although distant more than 150 million kilometers from us, remains our largest source of energy even if it is intermittent.

It is a clean energy that emits no greenhouse gases and its raw material, the sun, is available all over the world, free and inexhaustible.

How does a solar installation work?

Three elements are needed for a photovoltaic system: solar panels, an inverter and a meter.

These three elements make it possible to recover the energy transmitted by the sun, to transform it into electricity and then to distribute it to all the customers connected to the network.

integrated into the roof, the solar panels convert the light directly into direct electrical current
the inverter then transforms the electricity obtained into ac compatible with the network
the meter measures the amount of current injected into the network

 

What is wind energy?

Wind energy is a source of energy that depends on the wind. The sun heats the Earth unevenly, creating zones of different temperatures and atmospheric pressure all around the globe. From these pressure differences arise air movements, called wind. This energy makes it possible to manufacture electricity in wind turbines, also called wind turbines, thanks to the force of the wind.

A wind turbine is composed of 4 parts:

the mast
propeller
the nacelle that contains the generator generating electricity
power lines that evacuate and carry electrical energy (when connected to the grid)

Descending from the windmill of the Middle Ages, the first wind turbine was commissioned in France in Dunkerque in 1990.

At the end of 2012, France has about 4 500 wind turbines.

It is an energy that emits no greenhouse gases and its raw material, the wind, is available all over the world and totally free.

There are 2 types of wind farms, depending on their geographical location and the available area.

Shut in

A wind farm, or wind farm, consists of 3 to 10 machines at least 200 m apart. Electricity generation, most of the time purchased by EDF from its producer, is channeled by cable to the grid. Given the size of wind turbines, a large area is required to install a significant wind farm.
Off-shore

It is a wind farm located at sea, about 10 km from the coast, at depths of up to 25 to 30 m. It is connected to the terrestrial network by an underwater cable.

 

Source: https://www.edf.fr/groupe-edf/espaces-dedies/l-energie-de-a-a-z/tout-sur-l-energie/produire-de-l-electricite/les-differents-types-d-eoliennes

What is hydropower?

Hydropower makes it possible to manufacture electricity in hydropower plants through the force of water. This force depends either on the height of the waterfall (high or medium-fall power plants), or the flow of rivers and streams (run-of-the-river power stations).

Hydraulic energy depends on the water cycle. It is the largest source of renewable energy.

Under the action of the sun, the water of the oceans and the earth evaporates. It condenses into clouds that move with the wind. The drop in temperature over the continents causes rainfall that feeds the water of lakes, rivers and oceans.

A hydraulic power plant is composed of 3 parts:

the dam that holds the water
the power plant that produces electricity
power lines that evacuate and carry electrical energy

In France, hydroelectricity has been exploited since the end of the 19th century, making it the oldest energy produced by a national resource. EDF operates 640 dams, 150 of which are more than 20 m high.

It is an energy that does not emit greenhouse gases, it can be used quickly thanks to the large quantities of stored water and it is a renewable energy very economical in the long term.

There are 3 main forms of dams:
The dam-weight

In concrete or stone, it is the simplest and heaviest.

It is vertical with respect to the reservoir and inclined with respect to the valley. It relies solely on the ground.

Thus, it opposes all its mass to the pressure of the water.
The arch dam

In concrete, it relies in part on rock walls. Thanks to its curved shape, it postpones the pressure of the water on the banks. It can also be supported by buttresses.

It is inclined relative to the reservoir and vertical to the valley. It is often used in narrow valleys.
The buttress dam

Its triangular concrete buttresses allow it to postpone the pressure of the water towards the ground.

It is very light because its weight is reduced only to the foothills.

 

 

Sources: https://www.edf.fr/groupe-edf/espaces-dedies/l-energie-de-a-a-z/tout-sur-l-energie/produire-de-l-electricite/les-differentes-formes-de-barrages