Photovoltaic systemA photovoltaic system, also PV system or solar power system, is an electric power system designed to supply usable solar power by means of photovoltaics. It consists of an arrangement of several components, including solar panels to absorb and convert sunlight into electricity, a solar inverter to convert the output from direct to alternating current, as well as mounting, cabling, and other electrical accessories to set up a working system. It may also use a solar tracking system to improve the system's overall performance and include an integrated battery.
Multi-junction solar cellMulti-junction (MJ) solar cells are solar cells with multiple p–n junctions made of different semiconductor materials. Each material's p-n junction will produce electric current in response to different wavelengths of light. The use of multiple semiconducting materials allows the absorbance of a broader range of wavelengths, improving the cell's sunlight to electrical energy conversion efficiency. Traditional single-junction cells have a maximum theoretical efficiency of 33.16%.
Centrale solaire thermodynamiqueUne centrale solaire thermodynamique (ou centrale solaire thermique à concentration ou encore héliothermodynamique), en anglais CSP (pour concentrated solar power) est un site industriel qui concentre les rayons du Soleil à l'aide de miroirs afin de chauffer un fluide caloporteur, lequel sert en général à produire de l'électricité. Ce type de centrale permet, en stockant ce fluide dans un réservoir, de prolonger le fonctionnement de la centrale plusieurs heures au-delà du coucher du Soleil.
Theory of solar cellsThe theory of solar cells explains the process by which light energy in photons is converted into electric current when the photons strike a suitable semiconductor device. The theoretical studies are of practical use because they predict the fundamental limits of a solar cell, and give guidance on the phenomena that contribute to losses and solar cell efficiency. Photons in sunlight hit the solar panel and are absorbed by semi-conducting materials. Electrons (negatively charged) are knocked loose from their atoms as they are excited.
Third-generation photovoltaic cellThird-generation photovoltaic cells are solar cells that are potentially able to overcome the Shockley–Queisser limit of 31–41% power efficiency for single bandgap solar cells. This includes a range of alternatives to cells made of semiconducting p-n junctions ("first generation") and thin film cells ("second generation"). Common third-generation systems include multi-layer ("tandem") cells made of amorphous silicon or gallium arsenide, while more theoretical developments include frequency conversion, (i.e.
Quantum dot solar cellA quantum dot solar cell (QDSC) is a solar cell design that uses quantum dots as the captivating photovoltaic material. It attempts to replace bulk materials such as silicon, copper indium gallium selenide (CIGS) or cadmium telluride (CdTe). Quantum dots have bandgaps that are adjustable across a wide range of energy levels by changing their size. In bulk materials, the bandgap is fixed by the choice of material(s).
Tracker solairevignette|Tracker solaire design 8m2 Lumioo Un tracker solaire, traqueur solaire ou suiveur de Soleil est un dispositif permettant à un télescope héliographique (devant observer le soleil ou certains de ses effets dans l'atmosphère), ou à une installation de production d’énergie solaire de suivre le soleil selon le principe de l'héliostat. Cette structure portante motorisée oriente les panneaux solaires pour en augmenter la productivité.
Panneau photovoltaïque thermiqueUn panneau photovoltaïque thermique (PV-T), ou panneau solaire hybride, ou encore panneau aérovoltaïque est un dispositif conçu à la fois pour produire de l'électricité photovoltaïque et pour recueillir l'énergie thermique provenant du Soleil.
Panneau solaireLe terme « panneau solaire » peut faire référence à plusieurs concepts liés à l'énergie solaire : capteur solaire photovoltaïque : aussi appelé panneau solaire photovoltaïque, convertit le rayonnement solaire en électricité par effet photovoltaïque ; capteur solaire thermique : aussi appelé panneaux solaire thermique, convertit le rayonnement solaire en chaleur et la transfère à un fluide caloporteur ; panneau photovoltaïque thermique : combinaison des deux précédents ; panneau solaire aérothermique : métho
Timeline of solar cellsIn the 19th century, it was observed that the sunlight striking certain materials generates detectable electric current – the photoelectric effect. This discovery laid the foundation for solar cells. Solar cells have gone on to be used in many applications. They have historically been used in situations where electrical power from the grid was unavailable. As the invention was brought out it made solar cells as a prominent utilization for power generation for satellites.
