Photovoltaic plants represent a considerable investment. In order to secure the investment, the yields of the plant must be ensured as the investment calculation is usually based on a yield expectation. In order to secure the yield of a plant, a constant control is needed. Modern monitoring systems help here since occurring errors are immediately detected and the predicted electricity yields are secured for the operator of the photovoltaic system.
Solar Log WEB Enerest™ 4
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The influences on the yield of a plant can be manifold and have a different impact on the yield. In various studies* the uncertainties and influences on the yield of the plant are examined. Here, the following aspects and their weighted influence on the yield can be summarized.
The interaction of a large number of components and materials in a photovoltaic system results in a large number of theoretical error sources. The error sources themselves in turn, can show different error cases/ causes, which may have a weighted influence on the yield of the system. Here you can see a simplified example of the TOP-TEN error causes in the area of photovoltaic modules and inverters, as well as their influence on the yield in the form of a prioritized cost number*.
*Source for numerical values and basic data: report, technical risks in PV projects, EURAC TUEV - Solarbankability; 2016.
The Solar-Log™ device monitors the photovoltaic system and detects faults, such as the failure of an inverter, before they become a permanent problem. For a complete overview, the status and error codes of the individual inverter manufacturers are permanently recorded and saved in the event log. The Enerest ToGo App displays the deviations directly.
In order to recognise whether the photovoltaic system is working trouble-free and efficiently, the power of the inverters is compared with each other. The Solar-Log™ works with the kWp power, the normalised power of the inverters, to compare inverters of different sizes. With multi-tracker inverters, the Solar-Log™ can detect deviations down to MPP tracker level.
With the new online portal Solar-Log WEB Enerest™ 4, Solar-Log™ scores once again! One platform - All loggers! This omni-compatibility creates a standard for online monitoring. The know-how gained from more than ten successful years in the solar industry has resulted in an increasingly powerful online portal that makes the installer's daily work so much easier. Little by little, more and more loggers are being integrated. Currently, devices from meteocontrol and Huawei are compatible.
For many years, the book was difficult to find outside of post-Soviet countries. The digital has become a vital resource for global students because:
Geometrical optics, the quantum nature of light, and the special theory of relativity. Why Students Seek the PDF Version
For decades, students and educators preparing for high-level competitive physics have sought out the legendary problem set by O. Ya. Savchenko. Known for its rigorous demands and creative problem-solving requirements, is often considered a "holy grail" for those training for the International Physics Olympiad (IPhO) . What is the Savchenko Physics Collection? savchenko physics pdf
The curriculum covered within the includes:
Kinematics, dynamics, oscillations, and fluid mechanics. For many years, the book was difficult to
The problems are known to have inspired legendary physics educators like Jaan Kalda and are frequently cited as the gold standard for sharpening competitive skills. The Quest for Solutions
Platforms like GitHub host the source material for the solution project, allowing the global physics community to peer-review and refine answers. What is the Savchenko Physics Collection
Whether you are a student aiming for a gold medal in a national physics competition or a physics enthusiast looking for a genuine intellectual challenge, the Savchenko collection remains one of the most prestigious resources in the field. Savchenko Solutions
Originally written in Russian, the collection contains 2,023 problems spanning every major branch of classical physics. It is distinguished from standard textbooks by its focus on "elegant" problems—those that require deep conceptual insight rather than just rote calculation.
Many original copies are out of print or only available in Russian.
Our free app is available for download for Apple and Android devices, offering you functions as a professional and monitorer. In addition, the app can also be used by your customers. It provides time-saving support for use on the construction site, yet also for tracking errors for your PV systems. The app informs you when Solar-Log WEB Enerest™ 4 has detected new errors. On the go, you decide whether errors should be converted to tasks, or archived.
Self-consumption at a glance:
Your customers can use the app to overview all production and consumption values, allowing you to focus on monitoring and service. Weekly yield reports can be sent through the app with a push notification. This can be set individually per user.
