When several heat pumps are running simultaneously in a neighborhood, electric cars are charging and solar systems (photovoltaic systems) are working at full speed in summer, it becomes clear how important stable electricity grids are. Even small fluctuations can have noticeable consequences - from voltage dips to power outages.
The energy transition is in full swing, and with it the demand for electricity in Germany is growing rapidly. Forecasts predict that it will increase from around 500 terawatt hours in 2020 to 750 to 800 terawatt hours in 2040. Some scenarios even consider a tripling or quadrupling to be possible. The main drivers are heat pumps, electromobility and increasing digitalization.
The real challenge lies not in power generation, but in grid stability. Local low-voltage grids in particular are at risk of being overloaded by uneven loads - conventional grids are reaching their limits here. A detailed overview of the distribution of the generation units is therefore crucial.
The number of solar installations is growing rapidly. More and more homeowners and companies are opting for their own photovoltaic system in order to become more independent and at the same time play an active role in shaping the energy transition.
The trend is unbroken: Year after year, the number of newly installed systems is increasing significantly more than before - a clear signal of the enormous dynamism in the market.
SolarMonitor - the dashboard for the "market master data register"
The Nexiga MaStR dashboard
Nexiga has prepared the MaStR data on photovoltaic systems in a clear dashboard to make the relevant information usable in practice.
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SolarMonitor: The SolarMonitor provides quick and interactive insights into the status quo and the development of solar energy. In addition to regional differentiation, the dashboard brings transparency to issues relating to the type of solar systems, such as the distinction between structural PV systems and balcony power plants or the development of the construction of solar systems over the course of the year.
Only those who know where systems are feeding into the grid and where and how much is being consumed can plan grid expansion with foresight and control it efficiently.
The Market Master Data Register (MaStR) as a database for the energy transition
The Federal Network Agency's Market Master Data Register (MaStR) provides a central overview of the energy landscape. Every operator of an electricity generation plant is obliged to register their plant with relevant information - this creates a nationwide, standardized database that is indispensable for authorities, energy suppliers and planners.
Mandatory registration for all power generation plants with information on:
- Address
- Performance
- System type
Publicly accessible data with restrictions:
- Photovoltaic systems up to 30 kWp cannot be viewed by address for data protection reasons.
Data atMunicipality or zip code level nevertheless provides valuable insights, e.g:
- Where the energy transition is already progressing
- Where there is untapped potential
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Advantages and functions
Nexiga offers the necessary tool that prepares data in an understandable way - ideal for energy suppliers, local authorities and companies that want to base their strategies on a solid database.
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Quick overview of which regions are particularly well equipped with solar systems
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Recognition of expansion dynamics and pent-up demand
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Simple visualization of complex data for well-founded decisions
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Transparency on: type of solar systems (e.g. structural PV system vs. balcony power plant) and development of solar expansion over time
Precise address localization of photovoltaic systems
Aggregation at Municipality or Zip code is not sufficient for sustainable grid planning. It is crucial to know exactly which buildings actually have solar systems installed on them and what their basic output is.
Thanks to artificial intelligence and modern geo-information systems, solar installations can now be recognized directly on house roofs. This information is integrated into the Nexiga house database - and thus provides a precise overview of the actual location of the systems. On this basis, grid operators can not only localize current feed-ins, but also specifically identify bottlenecks.
In combination with the Nexiga solar affinity feature at building level, this creates a unique tool: it not only enables the current feed-in potential to be assessed, but also reliable planning for tomorrow's requirements. Where are roofs suitable but still unused? Which districts have particularly high potential for further expansion? Such questions can be answered with Nexiga data at the touch of a button.
Nexiga data as the key to stable power grids
Nexiga supports grid operators, energy suppliers and planning offices in sustainably expanding local electricity grids and making them stable for the future. A data-based foundation is crucial for efficiently integrating the growing number of decentralized generation and consumption units.
With solutions such as the MaStR dashboard and the solar cadastre, Nexiga provides the necessary tools to make electricity grids more flexible, intelligent and resilient - and to actively drive forward the energy transition.
Solar cadastre from Nexiga
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PV system on a building
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Year of commissioning of the PV system
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Output of the PV system
