It is clear that a certain water level is required

[suchona.kani.z]

In Germany, we can expect winter in the future, but it will be much warmer than we are normally used to. According to current forecasts, this will lead to high water levels in lakes and rivers in winter. At the same time, the fluctuations in water levels over the course of the year are becoming increasingly volatile, so that the water level will only experience minimal changes on average. In contrast, summer is becoming increasingly dry due to rising temperatures, making the situation more tense.

However with hydropower, more is not always better, because the turbines are designed for a certain flow rate and therefore have a performance limit. These developments make it clear that the maximum energy generation from hydropower can occur in winter. General statements are not useful at this point, however, because each system depends on many factors. These include the gradient and the geographical location of the system. Another point that can speak in favor of hydropower is the high efficiency, which is around 85% to 90% and is therefore significantly higher than that of the previously presented systems. However, so-called ice algeria consumer email list​ shocks can significantly reduce the efficiency of the systems and even lead to a total failure. These occur when the water moves quickly at a temperature below freezing. Due to the movement, the water loses heat to the surrounding air, causing it to freeze and ice shocks to form. These ice floes are then spread by the movement of the water and grow until they finally freeze the entire body of water. Such an event is rarely observed, but cannot be completely ruled out.


In general, there are various ways to minimize or completely eliminate the risks mentioned above. These include, for example, installing heating systems in wind turbines to prevent rotors from freezing. This increases efficiency and reduces the risk of ice throw, which is a danger to humans and animals. There are also sensible options for photovoltaic systems, so that only a small loss of efficiency occurs even in winter. As already mentioned, snow and ice should not be removed from PV systems yourself, as the risk of damaging something is simply too great. It is better to hire a specialist company, but you should consider to what extent the removal measures make financial sense.

At adesso, we are intensively concerned with energy and efficient security of supply. We are convinced that with the VideKIS project we are creating a software-based solution to guarantee efficient use of renewable energy systems in winter as well as the rest of the year. The VideKIS project aims to optimize and automate system services for the power grid by enabling smaller renewable energy systems to be integrated and aggregated in a virtual power plant. This enables the decentralized renewable energy systems to participate in the provision of system services. To this end, a market model for the virtual power plant network, an AI-supported balancing and billing model and the possible uses of the power plant network under the regulatory requirements are being developed and investigated. The project addresses the challenges that arise for grid operators due to changes in the energy industry and that make it difficult to include renewable energy systems in the provision of system services.