Resources
Frequently asked questions
The term "repowering", also translated into French as "renouvellement d'une unité de production d'énergie", implies the total or partial replacement of old energy infrastructures by new, more powerful and/or more efficient installations, resulting in an increase in energy production capacity.
When you call on Feedgy, you entrust your project not only to engineering experts, but also to administrative and legal experts. Our specialized teams guarantee that you will keep your current feed-in tariff, thanks to simplified and controlled procedures with EDF OA. We take charge of all administrative procedures, and will be your sole point of contact with the relevant bodies.
No, unlike many solar companies, Feedgy leaves you the sole owner and beneficiary of your energy production. We provide you with a detailed financial projection before you sign any contract, which you can use as a reference when seeking bank financing. Don't hesitate to ask our teams about our administrative support.
Feedgy offers you the best solutions for boosting the performance of your solar park. Convinced that our advice must be dissociated from any financial obligation (and loss of control over your operation), we nevertheless give you all the keys to finding the financing you need to complete your project. We can also support you in your dealings with banking institutions.
Contact us for more information on financing your project,
If the deterioration of the panels is too great, they will be entrusted to the SOREN recycling organization. If their performance is diminished but they don't represent an electrical risk, you can reuse them for self-consumption, or Feedgy will put them back on the second-hand market.
Lexicon
AgriPV (Agrivoltaics)
Combining agriculture and photovoltaic production on the same plot of land, enabling the simultaneous cultivation of crops and the generation of solar energy, thus optimizing land use. Feedgy’s innovation enables farmers to maximize their agricultural and energy production simultaneously. This breakthrough offers a sustainable solution for generating a double income, revolutionizing the use of agricultural land.
Solar power plant audit
Complete inspection and assessment of a solar installation to verify efficiency, regulatory compliance, and identify opportunities to improve performance and safety. Thanks to these audits, Feedgy is able to identify exactly what needs to be done to optimize solar energy production.
Self-consumption
Feedgy promotes the direct use of the solar energy produced, reducing dependence on the external power grid and optimizing energy costs. This approach strengthens energy autonomy and contributes to a more sustainable future.
Bifaciality panels
The ability of bifacial solar panels to capture sunlight from both sides, potentially increasing energy production compared with traditional monofacial panels.
Junction box
Electrical compartment on the back of a solar module, for connecting electrical cables and protecting circuits.
Browning
Change in color of solar panels to a darker shade, usually caused by thermal degradation or prolonged exposure to sunlight, which can reduce performance.
Photovoltaic string
A set of modules electrically interconnected in series and sized to supply the voltage required to form a photovoltaic array (or sub-array).
Corrosion
Deterioration of the metal components of a photovoltaic system, caused by exposure to moisture, chemicals or salty air, affecting its durability and performance.
Installation cost
All expenses associated with the installation of a photovoltaic system, including the costs of materials, labor, planning and administrative procedures.
Data logger
Device or computer system used to automatically record data on the performance and operating conditions of a photovoltaic system over time.
Damage to solar power plant / panels
Deterioration affecting the performance and efficiency of a solar installation or photovoltaic panels. Damage can be caused by a variety of environmental, operational or technical factors.
Delamination
Separation of the layers of a solar panel, often due to manufacturing problems or extreme environmental conditions, compromising the panel’s integrity and efficiency.
By-pass diode
Electrical component used in solar panels to minimize the negative effects of hot spots by allowing current to bypass defective or shaded cells, thus preserving overall module performance.
Panel life
Period during which a solar panel maintains satisfactory operational performance, generally estimated at between 25 and 30 years for modern panels.
Photovoltaic cladding
Limiting the energy production of a photovoltaic system to avoid exceeding the capacity of the grid or inverter, thus guaranteeing system safety and stability.
Fouling of solar panels
Accumulation of dirt, dust or other substances on the surface of the panels, reducing their ability to capture sunlight and generate electricity efficiently.
Maintenance / Panel cleaning
Regular maintenance practices to ensure proper operation and maximum efficiency of solar panels, including surface cleaning to remove dust, dirt and other debris.
Heterojunction
Solar cell technology that uses a combination of crystalline and amorphous silicon materials at the solar junction interfaces to reduce energy losses and increase photovoltaic conversion efficiency.
Hot spot
Area of overheating on a solar panel caused by a poor connection, damaged cell or partial shading, leading to accelerated degradation and loss of efficiency.
Yellowing
Discoloration of solar panels, often due to UV exposure and other environmental factors, which can reduce their efficiency.
LCOE (Levelized Cost of Energy)
A financial indicator that represents the average cost of producing one unit of electricity by a plant over its lifetime, making it possible to compare the economic efficiency of different energy sources.
Predictive maintenance
Maintenance strategy based on analysis of operating data and equipment conditions to predict and prevent failures before they occur, optimizing the durability and performance of photovoltaic installations.
Microfissure solar panels
Small cracks in solar cells that can develop as a result of mechanical or thermal stress, potentially reducing panel performance and longevity.
Microinverter
A type of inverter designed to be installed on each photovoltaic module, enabling independent conversion of direct current to alternating current for each panel, thus improving overall system performance.
Mismatch
Imbalance or difference in performance between cells or modules in a photovoltaic system, which can lead to a reduction in overall efficiency due to variations in electrical characteristics.
Photovoltaic module / panel
The most elementary unit for producing electrical energy (direct current), consisting of an assembly of interconnected photovoltaic cells completely protected from the environment.
Modules / Solar panels
Units made up of assembled and framed photovoltaic cells, designed to capture solar energy and convert it into electricity.
Monitoring
Continuous monitoring and analysis of production and performance data from a photovoltaic system to optimize operation, identify problems and improve efficiency.
Inverter
Electronic device that converts the direct current produced by solar panels into alternating current compatible with the electrical grid.
Central inverters
Inverter designed to convert direct current from several strings (strings of solar modules connected in series) into alternating current, often used in medium to large-scale installations.
PAR (Photosynthetically Active Radiation) - Panel transparency rate
Measurement of the amount of sunlight through the photosynthetically active spectrum that solar panels let through, relevant for agrivoltaic applications where plant growth under the panels is considered.
Energy assets
All the energy assets owned by a person, organization or even a region. We’re talking here about all renewable energy facilities dedicated to the production, storage and distribution of energy.
Photonics
Photon science and technology, focusing on the creation, manipulation and use of light for a variety of applications, including photovoltaics to improve the efficiency of solar cells.
Photovoltaic
Technology for converting sunlight directly into electricity using semiconductor materials that exhibit the photovoltaic effect.
PID (Potential Induced Degradation)
Degradation of solar panel performance caused by high voltages, leading to a significant loss of efficiency over time.
Production
The term “producible” refers to the quantity of energy that an energy installation (often renewable, such as photovoltaic or wind power) is capable of producing over a given period. It is generally expressed in kilowatt-hours (kWh) for electrical energy, and takes into account actual operating conditions, including climatic variations and possible degradations in plant performance. Deliverability is crucial for assessing a project’s profitability and energy efficiency.
Panel productivity (kWh/kWp calculation)
Ratio between the energy actually produced by a photovoltaic system (in kWh) over a given period and its rated capacity (in kWp), indicating the system’s actual efficiency.
Plant power
kWp (kilowatt-peak) refers to the installed power of a photovoltaic system. kWh (kilowatt-hour), on the other hand, measures the energy actually produced or consumed over a given period.
Performance ratio (PR)
The performance ratio, often expressed as a percentage, is a key indicator of the quality and efficiency of a photovoltaic system. It measures the ratio between the energy actually produced by the PV system over a given period and the theoretical energy the system could have produced if operating at maximum capacity (taking into account the solar irradiation received). A high PR indicates high performance and low energy losses.
Panel recycling
The process of recovering and reusing materials from end-of-life solar panels, to minimize environmental impact and promote the circular economy.
Surface yield
A measure of the efficiency with which a solar panel converts solar energy into electricity per unit area, usually expressed in watts per square meter (W/m²).
Profitability
Economic evaluation of a photovoltaic system, calculated on the basis of revenue generated by energy production, savings achieved and initial and operating costs.
Repowering
The process of replacing or upgrading the equipment of an existing photovoltaic installation to increase its production capacity, improve its efficiency or extend its operational life.
Electricity resale
The process by which a solar power producer sells surplus production to the grid or to third parties, often at a regulated or negotiated rate.
Monocrystalline / polycrystalline silicon
Two types of silicon are used in the manufacture of solar cells, differentiated by their crystalline structure. Monocrystalline offers higher efficiency, but is generally more expensive than polycrystalline.
Snail tracks
Snail-like marks on solar panels, usually due to microcracks or material degradation, which can affect performance.
Energy storage
Use of technologies (such as batteries) to store the energy produced by solar panels for later use, enabling greater independence from the grid and better energy management.
String / Chaîne PV
A series of photovoltaic modules connected in series in a photovoltaic system to increase the overall voltage, thus optimizing the efficiency of the energy conversion system.
Fastening system
Mounting systems for solar panels that can be installed on existing structures, such as steel roofs, or integrated directly into the building for enhanced aesthetics and double functionality.
Monitoring system
A set of tools and software designed to monitor the performance of a solar installation in real time, guaranteeing its correct operation and optimizing its energy production.
Guaranteed feed-in tariff
The feed-in tariff is the price at which EDF, and by extension the French government, undertakes to buy back electricity generated by renewable installations. The price is fixed for 20 years via a purchase contract. Feedgy strives to maintain an attractive feed-in tariff for electricity generated by renewable installations, reinforcing the profitability and attractiveness of investing in solar energy for its customers.
TopCon
Advanced solar cell technology featuring a tunnel oxide layer and passivated contacts to improve efficiency by reducing electrical losses.
TÜV
German technical certification body that assesses the safety, quality and conformity of products, including photovoltaic equipment, to strict international standards. The agrivoltaic panel developed by Feedgy is TÜV Rheinland certified.