Premium Software Valentin GeoTSOL 2026 (Design & Simulation) Download 2026-01-31

Summary​

When I first explored GeoTSOL, I was impressed by its user-friendly interface and clear approach to planning and design of heat pump systems. The program gives you the choice of different heat sources, such as soil, air, and Groundwater, allowing for flexible operating modes including monovalent, monoenergetic, and bivalent setups. From my experience, the integration of solar thermal systems and photovoltaic systems is seamless, and the software supports multiple system configurations to fit any professional requirement. Working with bivalent systems that include a boiler as a heat generator is straightforward in GeoT*SOL, and it handles the mix of bivalent and mono setups efficiently.

Advanced Simulation Capabilities​

Working with GeoT*SOL, I quickly noticed how dynamic minute simulation allows precise forecasts and seasonal performance factors for any heat pump systems. The software calculates operating costs, electricity consumption, and manages blocking periods and tariffs efficiently. From monovalent, monoenergetic to bivalently operating modes, the integration of heat generators and solar thermal systems or PV systems is smooth. Each project report can be tailored for clients, including selected results and key parameters, making it easier to follow approval procedures and funding measures while ensuring economical and efficient system performance.

Comprehensive Databases​

The GeoT*SOL platform includes an extensive database of heat pumps, boilers, collectors, and storage tanks. With over 12,800 heat pumps, including air/water, brine/water, and water/water types, plus 7,900 KEYMARK certified units, users have a vast selection. There are 4,300 collectors, such as flat plate collectors, tube collectors, and air collectors, along with 5,200 boilers, such as condensing boilers, wood boilers, and pellet boilers. Additional storage tanks, including combination storage and buffer storage, can be added free of charge, offering full system configurations for both monovalent and bivalents setups.

Interactive Diagram Visualization​

One feature I value highly is the configurable diagrams. The software allows the display of individual data series with bars, lines, and points, covering 1 day to 1 year with resolution from hours to months. Selected diagrams can be incorporated into project reports for clients, providing a clear view of heat pump and PV system performance over time. The color and shape options make complex data easy to read and understand.

Global Climate Integration​

GeoT*SOL also integrates global climate data. Using Meteonorm 8.2, TMY data, and satellite data, it provides information for 8,000 climate locations worldwide. Data from DWD, including the current state 2017 and the averaging period 1995-2012, is fully interpolated and can be imported from files in WBV format. Interactive maps help select locations, while neighboring ground measuring stations fill in missing data for accurate simulations.

Cost Management and Reporting​

Managing electricity price, high tariff HT, low tariff NT, and supply situation is simple with GeoT*SOL. Profitability is calculated using MIRR, capital value, heat price, and production costs, aligned with German Solar Association BSW recommendations. The software supports reinvestment, subsidies, and cost comparison against reference systems. Custom project reports with live preview, Word file or PDF options, and appealing reports for clients make heat pump system management clear and efficient.

System Integration and Features​

Since GeoT*SOL 2025 R7, importing heating load data and building information from the SOLAR-COMPUTER software portfolio is fast and accurate, supporting precise heating load calculations while avoiding duplicate work. System requirements include Internet access, a processor Intel i3 or AMD Ryzen 3, RAM 4 GB, free hard disk space 1.2 GB, resolution display 1280 x 768 pixels, Windows 10 or 11, and Microsoft .Net Framework 4.8.

New features like bivalence point diagram, high flow temperatures, annual energy demand, partial load operation, and preheating domestic hot water ensure that heat pumps perform efficiently. The product selection dialog, data entry, and program startup have been optimized, with a slight increase in seasonal performance factors and updated databases, reflecting the latest innovations in heat pump systems.

Heat Pump and PV Software Updates​

The professional PV design software PV*SOL Premium and it have recently been updated with new features and extensive new battery options. I found that Valentin Software has improved the high-quality load profiles and integrated the latest climate data for precise planning. Trade visitors at Intersolar Europe in Munich can see the latest versions of PVSOL, TSOL, and GeoTSOL, all offering innovative design software for photovoltaic systems, solar thermal systems, and heat pump systems.

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