We conduct a comprehensive analysis of solar panel degradation to identify the causes of performance decline and ensure the long-term stability of your photovoltaic power station.

Our analysis includes several stages that provide a complete picture of your system's condition.

What the degradation analysis includes

• Performance Comparison. We analyze monitoring data to detect discrepancies between actual and estimated energy production. This allows us to identify the overall degradation dynamics.
• Thermographic Examination. Using thermal cameras (often mounted on drones for large projects), we scan the panels to detect:
  • problematic bypass diodes;
  • connection issues.
• I-V Curve Tracing (current-voltage). This method provides a precise measurement of each panel's performance and allows detection of deviations from factory specifications.
• Visual Inspection. Our specialists carefully inspect the panels for external damage, such as: microcracks; delamination; sealing defects.
• Insulation Testing. We perform a megohmmeter test to identify current leakages that can cause a decrease in performance and pose a safety risk.

Why this service is important

• Early problem identification. The analysis allows for the timely detection and elimination of defects before they cause serious losses.
• Performance optimization. Remedying the identified problems brings the system back to maximum efficiency and accelerates the return on investment.
• Lifespan forecasting. The analysis results help estimate the remaining lifespan of the system and plan for its modernization.
• Basis for warranty. If the degradation exceeds the standard set by the manufacturer, our report can serve as a basis for warranty service or replacement.

By periodically conducting a degradation analysis, you ensure the reliability, safety, and durability of your photovoltaic power station.

For large commercial and industrial buildings that require significant power, connecting to the medium voltage grid (3–35 kV) is the necessary solution. We offer comprehensive services for connecting your solar power plant to the medium voltage grid, ensuring full support throughout the project.

The connection process includes:

• Preliminary technical conditions: We submit the application to the electricity supplier and obtain the preliminary technical conditions for your facility.
• Project development and coordination: Our team of engineers develops a detailed technical and economic project that includes: - power calculation; - selection of specialized equipment; - connection diagrams; - justification of economic efficiency. The project undergoes the necessary expertise and coordination with regulatory authorities.
• Installation of the transformer station: Connecting to medium voltage usually requires the installation of a dedicated transformer station. We handle all installation and configuration work.
• Equipment installation: We carry out the professional installation of all solar power plant components, including panels, inverters, and power equipment, in accordance with the approved project.
• Testing and commissioning: We perform all necessary tests, including insulation testing, and commissioning work to ensure the safe and efficient operation of the system.
• Commissioning: We prepare all the necessary documentation for signing the connection contract and, if necessary, for the sale of surplus electricity. After the successful completion of all stages, your plant will be officially put into operation.

Advantages of working with us

• Experience and expertise: We have extensive experience in implementing large projects for connection to the medium voltage grid.
• Full support: We take care of all the bureaucratic and technical work, from project development to signing the contract with the electricity supplier.
• Safety and reliability: We guarantee that all work will be carried out in accordance with current safety regulations and technical standards, ensuring the reliable and long-lasting operation of your power plant.

By turning to us, you will get a reliable partner who will guide you through the entire complex process of connecting to medium voltage, ensuring the maximum efficiency of your investment.

From the beginning of the project to its implementation, we offer a full range of services, including site assessment, technical analysis, system sizing, and the development of documentation required for legal permits, including access to grants. We ensure that each designed system is perfectly adapted to the specific requirements and conditions of the site, thereby maximizing the efficiency and profitability of residential and industrial solar installations.

Our company’s specialists have extensive experience in designing solar power plants.

Stages of solar power plant design:

A solar power plant project begins with the joint approval of the Technical Specifications for the design with the Client.

The Technical Specifications is a document that specifies where, in what location, with what base capacity the solar station will be installed, where it will be connected, and how the electricity generated by the solar station will be used.

During the design stage of the solar power plant, our company’s specialists visit the site, consult with the Client’s specialists, and determine the entire structure of the future project documentation.

Solar Power Plant Project – Timelines

• The time to prepare the project documentation depends on the complexity of the solar station and will range from 1 week to 1 month.
• The project approval process takes from 1 to 3 weeks.

A specialist’s on-site visit for solar panel installation is an important step that includes several key stages: from evaluation and design to installation and commissioning.

1. Consultation and Evaluation:

• The specialist evaluates the location for the solar power station.
• Examines the terrain features and the orientation of the roof or site for maximum panel efficiency, usually facing south.
• Analyzes shading from trees or buildings that could reduce system performance.

2. Measurements and Calculations:

• The engineer takes precise measurements of the area available for installation.
• Calculates the required system power based on the client’s electricity needs.
• Determines the optimal panel tilt angle.

3. Design and Equipment Selection:

• Based on the collected data, a project for the future solar power station is created.
• The appropriate equipment is selected: solar panels, inverter, batteries, and other components.

Optimizing the orientation and tilt of solar panels is crucial for maximizing energy production and achieving the best performance from a photovoltaic system.

Panel Orientation

• Ideal Orientation: In the Northern Hemisphere (including the Republic of Moldova), the optimal orientation is directly south to capture the most solar radiation throughout the day. A deviation of ±20° from south has a minimal impact on production.
• Site-Specific Adaptation: The best orientation depends on specific consumption needs. Our specialists can determine the best configuration based on the consumption profile of the home or business.

Panel Tilt

• Importance of the Angle: The tilt angle directly influences the amount of solar energy captured by the panels. A correct angle ensures that the sun\
• Advantages of a Steeper Tilt: In addition to optimizing winter production, a steeper tilt helps with the self-cleaning of panels from dust and snow, thereby reducing maintenance needs.

Solar radiation, temperature, and ventilation are critical factors for maintaining the high efficiency of solar panels. These factors are interconnected and must be considered when designing and installing any solar system.

Impact of Solar Radiation

• Intensity: The intensity of sunlight (irradiation) is directly proportional to the amount of energy the panels produce. Optimal solar radiation conditions lead to maximum efficiency. The Republic of Moldova has about 220 sunny days per year, making solar energy a profitable investment.
• Compensation: Although cloudy days reduce production, solar systems are designed to compensate for these losses on sunny days, ensuring stable generation throughout the year.

Impact of Temperature

• Efficiency Decreases with Heat: The efficiency of solar panels decreases as temperature rises, especially above 25°C. A cool, sunny day can be more productive than a hot one.
• Panel Temperature Rise: In direct sunlight, panel temperatures can reach 66°C or higher, significantly reducing efficiency.

Shading analysis is an essential step in planning and installing solar panels, as even partial shade can significantly reduce the efficiency of the entire system.

Impact of Shading on Panels

The effect of shading is not proportional to the shaded area. In a system with a central (string) inverter, the panels are connected in series. Thus, the performance of the entire string is limited by the panel with the lowest output—the shaded one. This can drastically reduce energy production, sometimes by 30-50% or more, depending on the system configuration and shading level.

Types of Shading

• Hard Shading: Caused by fixed, clear objects like buildings, trees, chimneys, or other structures. These have the greatest negative impact and should be avoided as much as possible.
• Soft Shading: Caused by objects that partially block light, such as leaves, fine dust, pollution, or clouds. These have a smaller but constant impact on efficiency.

To minimize the negative effects of shading, our specialists apply the following strategies:

• Location Optimization: This is the first and most important measure. By carefully analyzing the sun’s path and shade sources, the specialist can choose the best position for the panels, avoiding shaded areas.
• Microinverters and Power Optimizers: These devices are advanced technological solutions that mitigate the impact of shading. Power optimizers optimize the output of each panel and then send it to a central inverter.

The complete technical design of a photovoltaic system is a complex process involving several stages, from the initial assessment of needs to the preparation of the necessary documentation for installation and authorization. A correct design ensures maximum efficiency, safety, and durability of the investment.

Stages of Technical Design

1. Energy Needs Assessment:

• Consumption Analysis: The beneficiary’s electricity bills are analyzed to determine the average daily, monthly, and annual consumption.
• Appliance Inventory: All electrical consumers, their power, and operating duration are identified to establish the energy requirement.

2. Site Evaluation:

• Solar Analysis: The specific solar radiation of the area, as well as the orientation and tilt of the roof or land, are evaluated.
• Shading Analysis: Shade sources (trees, buildings, chimneys) are identified, and their impact throughout the year is calculated.
• Structural Verification: The mounting structure (roof, ground) is evaluated to ensure it can withstand the system’s weight and weather conditions.

3. System Sizing:

• Panel Calculation: Based on energy consumption and solar irradiation conditions, the number and power of the required panels are determined.
• Inverter Selection: An inverter compatible with the panels and system needs (on-grid, off-grid, hybrid) is chosen, considering input voltage and maximum power.
• Battery Sizing (for off-grid or hybrid systems): The necessary battery capacity is calculated to ensure energy autonomy.

We develop optimized systems for stable and sustainable production.

1. Customized Design Approach:

• Local Considerations: We analyze the local climate (solar radiation, temperature, wind) and geographical features (latitude, topography) to select the optimal orientation and tilt angle for the panels.
• Shade Management: We carefully analyze potential sources of shading (trees, buildings) and use technologies like microinverters or power optimizers that allow each panel to operate independently.

2. Technological Enhancements:

• Advanced Panel Technologies: We use next-generation solar panels, such as N-type cells or bifacial panels, which have higher efficiency and degrade more slowly over time.
• Tracking Systems (Trackers): We use systems that automatically adjust the position of the panels throughout the day to follow the sun, maximizing energy production.

Ensuring an optimal cost-benefit ratio for solar panel installation is achieved through a thorough technical and economic justification of the project. We consider both the initial investment and long-term benefits, such as energy savings and increased property value.

Technical Selection

The correct technical selection is based on a comprehensive analysis of the client’s needs and operating conditions.

• Monocrystalline Panels: Offer higher efficiency (19–24%), allowing more energy to be generated from a smaller area. Ideal for smaller roofs or for those seeking maximum performance.
• Inverters and Optimizers: The choice of inverter affects system stability and efficiency. Microinverters or power optimizers, installed on each panel, allow them to operate independently and minimize shading losses.
• Mounting Systems: Selecting a high-quality and appropriate mounting system ensures the safety and durability of the installation. We consider the roof or ground material, as well as wind and snow loads.
• Component Quality: We use high-quality components from reputable manufacturers, guaranteeing a long service life and stable operation. This impacts overall reliability and the investment payback period.

Economic Analysis and Benefit Assessment

To ensure an optimal balance between costs and benefits, we conduct a comprehensive economic analysis.

• Return on Investment (ROI) Calculation: The payback period shows how quickly the financial benefits from energy savings offset the initial investment. It is influenced by system size and energy efficiency.
• Long-Term Benefits: Investing in solar panels provides reduced electricity bills and an increase in property value.

Complete documentation for a solar power station includes two main sections: technical documentation for the equipment and design documentation, as well as permits for connecting to the electrical grid. According to legislation, the installation procedure for solar power stations for individuals and businesses is well-established.

1. Technical Documentation

This set of documents is provided by the equipment supplier and contains all information about the system components, including specifications, technical data sheets, warranties, and certificates of conformity.

2. Design Documentation

This part is developed by our specialists and includes the technical project with detailed calculations, layout and connection diagrams, load calculations, as well as an installation plan and testing reports.

3. Grid Connection Documentation

To use a Net-Metering system or sell surplus energy, permission from the electricity provider is required, which involves submitting an application and project documentation. Collaborating with us ensures the preparation of the entire package for the long-term, stable operation of your station.

Individual solutions for solar panels represent a comprehensive approach where a system is designed and tailored to the unique needs and conditions of a specific client. Unlike standard projects, individual solutions guarantee maximum efficiency, durability, and a faster return on investment.

When Are Individual Solutions Necessary?

A custom approach is essential for complex building architecture, limited space, shading issues, or specific energy consumption requirements, such as hybrid systems with nighttime usage.

Development Process

Our process includes a detailed site analysis, collection of consumption data, selection of optimal equipment (panels, inverters, batteries), development of a technical project with performance simulation, and professional installation with subsequent support.

Advantages of Individual Solutions

You achieve maximum efficiency, optimal cost, durability, and a full safety guarantee, as the system is perfectly adapted to your needs.

Receiving professional technical consultation at every stage of your solar panel installation project is essential for successful implementation and maximum system efficiency.

Consultation Stages

• Needs Assessment: A specialist will analyze your electricity bills to determine your typical consumption profile and, based on this, select the optimal system capacity.
• Site Analysis: The installation site (roof or ground) is inspected. Orientation and tilt angle are evaluated, and potential sources of shading (trees, buildings) are analyzed.

Benefits of Professional Consultation

• Optimal Choice & Maximum Performance: Experts will help you choose the most efficient solution, designed to ensure maximum energy production.
• Reliability, Safety & Savings: Correct equipment selection and a comprehensive technical justification ensure longevity, safety, and an accelerated return on investment.

For your solar power station to operate at full capacity, regular maintenance is necessary. Over time, dust, dirt, bird droppings, and other impurities accumulate on the panel surface, which can reduce productivity by up to 25%. We offer professional solar panel cleaning services, ensuring increased efficiency and a longer lifespan.

Why Regular Cleaning is Important

• High Efficiency: Clean panels capture more sunlight, resulting in higher energy production.
• Extended Lifespan: Caring for the panels protects them from damage and

Our Advantages

• Specialized Equipment: We use professional equipment, including pressure washers with purified water, such as the Kärcher iSolar system.
• Professionalism and Individual Approach: Our team has the necessary experience and considers the specifics of your location to provide the best solution.

Insulation testing is a key procedure to ensure the safety and efficiency of your solar power station. We use specialized equipment, such as megohmmeters, to check the integrity of the insulation of cables and system components.

What insulation testing can detect

• Current leakage: Damaged insulation can lead to current leakage, which reduces performance and poses a safety risk.
• Risk of short circuit: Insulation defects can cause short circuits, which can lead to equipment damage and fire.
• Premature wear: Moisture and other external factors penetrating through damaged insulation accelerate the wear of components.

Advantages of regular testing

• Increased safety, prevention of energy loss, and extension of the lifespan of your solar power station.

Thermographic inspection of solar panels is a non-destructive diagnostic method that allows for the detection of hidden defects and problems based on the analysis of thermal radiation. Using an infrared (IR) camera, we can identify areas with abnormally high temperatures (so-called

What Thermography Can Detect

• Defective cells and
• Malfunctioning bypass diodes: If a diode fails, a part of the panel can be disconnected, which also leads to overheating.
• Problems with electrical connections: Loose or damaged contacts can create resistance and cause local overheating.
• Degradation and microcracks: Certain types of internal cell damage can be detected by the temperature profile.
• Manufacturing defects: For example, delamination (separation of layers) or the presence of moisture inside the module.
• Shading and dirt: Heavy deposits of dirt or bird droppings can also cause local overheating, which is recorded by the thermal camera.

The Inspection Process

For maximum efficiency and accuracy, the thermographic inspection is carried out under the following conditions: Use of drones, Optimal timing, Data analysis.

• Use of drones: For large solar power plants and hard-to-reach roofs, drones equipped with IR cameras allow for quick and safe inspection of a large area.
• Optimal timing: The inspection is performed during sufficient solar activity (at least 600 W/m²), when the panels are actively producing energy. This allows for clear identification of anomalies.
• Data analysis: After collecting the thermal images, they are analyzed using specialized software. The result is a detailed report specifying all detected defects, their location, and severity.

Advantages of Thermographic Inspection

A regular thermographic inspection is an investment in the stable and long-term operation of your solar power plant.

We conduct a comprehensive analysis of solar panel degradation to identify the causes of performance decline and ensure the long-term stability of your photovoltaic power station.

Our analysis includes several stages that provide a complete picture of your system's condition.

What the degradation analysis includes

• Performance Comparison. We analyze monitoring data to detect discrepancies between actual and estimated energy production. This allows us to identify the overall degradation dynamics.
• Thermographic Examination. Using thermal cameras (often mounted on drones for large projects), we scan the panels to detect hot spots.
• I-V Curve Tracing (current-voltage). This method provides a precise measurement of each panel's performance.

We conduct a comprehensive analysis of solar panel degradation to identify the causes of performance decline and ensure the long-term stability of your photovoltaic power station.

Our analysis includes several stages that provide a complete picture of your system's condition.

What the degradation analysis includes

• Performance Comparison. We analyze monitoring data to detect discrepancies between actual and estimated energy production. This allows us to identify the overall degradation dynamics.
• Thermographic Examination. Using thermal cameras (often mounted on drones for large projects), we scan the panels to detect:
  • problematic bypass diodes;
  • connection issues.
• I-V Curve Tracing (current-voltage). This method provides a precise measurement of each panel's performance and allows detection of deviations from factory specifications.
• Visual Inspection. Our specialists carefully inspect the panels for external damage, such as: microcracks; delamination; sealing defects.
• Insulation Testing. We perform a megohmmeter test to identify current leakages that can cause a decrease in performance and pose a safety risk.

Why this service is important

• Early problem identification. The analysis allows for the timely detection and elimination of defects before they cause serious losses.
• Performance optimization. Remedying the identified problems brings the system back to maximum efficiency and accelerates the return on investment.
• Lifespan forecasting. The analysis results help estimate the remaining lifespan of the system and plan for its modernization.
• Basis for warranty. If the degradation exceeds the standard set by the manufacturer, our report can serve as a basis for warranty service or replacement.

By periodically conducting a degradation analysis, you ensure the reliability, safety, and durability of your photovoltaic power station.

Turn your home into an energy-efficient space with our "Green House" solutions. We integrate solar technologies for a sustainable and economical lifestyle.

Regardless of the project type, whether Solar Parks, industrial or commercial solar installations, DeWATT offers you complete solutions for the design and installation of solar systems. Collaboration with an experienced solar panel consultant ensures professional management at every stage of the project. We focus on innovation and sustainability, implementing advanced technologies to ensure maximum performance and longevity.

DeWATT — your trusted partner in solar panel consulting, design, and installation, with the expertise and knowledge to make solar energy an efficient solution for your business or home. Contact us to discuss the details of your project and begin the journey to a greener and more efficient energy source.

We manage all stages — technical and administrative — through clear and efficient sequencing.

We assess site and project requirements, identifying needs and potential technical issues.

We inspect the location to analyze actual conditions: orientation, shading, climate and accessibility.

We work with the client to establish project goals and find optimal solutions.

We conduct system evaluation, select equipment and prepare working drawings.

We handle the preparation of technical documentation and obtaining all necessary approvals.

We fully manage the installation process according to the approved project.

We verify operating parameters and configure the system for maximum performance.

We deliver the finished system, conduct training and provide post-installation support.