The share of solar power in the Swiss and European electricity mix keeps rising. This growth requires precise coordination between grid operations, electricity production, and market integration, based on a fundamental grid principle: at every moment, total production must equal total consumption.

Flexibility is therefore essential. Active power control of solar plants contributes directly to this balance. As always, Novasense focuses on transparency in these complex processes. The Novasense Portal now delivers a precise calculation of unused solar power caused by active power regulation.

We are proud to announce the release of the new Novasense Portal—a major milestone that delivers deeper insights, improved usability, and significantly enhanced performance for asset owners and operators. This release goes far beyond a visual refresh. It delivers powerful new analytical capabilities, streamlined operational tools, and a completely redesigned user experience, all supported by a faster and more robust technical foundation. Most importantly, Novasense is now a 100% Swiss solution, with data securely hosted in Switzerland by Infomaniak and weather data provided by Meteotest.

Many new solar plants commissioned in recent years fail to meet performance expectations. The reason? Strings that are too short. How is it possible that many well-established and experienced installers fall into this trap? In this article, I will first delve into the technical issue and then offer my honest opinion on why we are suddenly observing many new sizing issues in 2025.

Since June 1st, 2025, we have been using Meteotest’s weather data to calculate theoretical power output and short-term production forecasts for our solar assets. And we’re genuinely impressed by the accuracy of these forecasts — even on challenging days with intermittent cloud cover.

Today, more and more owners of photovoltaic installations are looking to boost the performance and profitability of their solar assets.

But one crucial question remains: Are you sure your system is operating at its full potential?

As solar power continues to play a central role in Europe’s energy transition, ensuring the stable operation of photovoltaic systems is more critical than ever. While solar irradiation is essential for energy production, elevated temperatures and heat stress can negatively impact system performance and reliability — all year round.

Manufacturers of photovoltaic components face fierce competition. They invest heavily in R&D to release the next model of solar modules or inverter with better efficiency and optimized costs. Every tenth of a percent gained is a new success! However, it is a shame to encounter solar plants made up of the best components but never reaching the expected performance due to a simple sizing error.