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[center]![[Image: b868b09d429afda786cc12e3f69ace46.png]](https://i126.fastpic.org/big/2025/1208/46/b868b09d429afda786cc12e3f69ace46.png)
Valentin Software Geotsol 2026 R1 V2026.1.13 (x64) Multilingual
File size: 442.8 MB [/center]
Are you looking for a user-friendly special tool for the planning and design of heat pump systems? Then our GeoT*SOL program is the perfect project partner for your design work.
You can choose between different heat sources (soil, air and groundwater) and modes of operation (monovalent, monoenergetic and bivalent) for your location. The integration of solar thermal systems and bivalent systems with boiler as heat generators should be emphasized. Requirements, losses and consumption are determined as a result of a dynamic minute simulation. Based on this, electricity consumption, seasonal heat performance factor and costs are calculated taking into account off-periods and tariffs. With these parameters, GeoT*SOL evaluates the economic efficiency of the system. The heat price and return are shown for the heat pump system and a comparison system.
Simulation of the contribution margin of the heat pump and other heat generators
With GeoT*SOL you can simulate the heat pump system to the minute in order to determine annual performance figures (COP) and contribution margins. The systems can have other heat generators such as gas condensing boilers and solar systems. Movovalent, monoenergetic and bivalent modes of operation can be selected for operation.
Determination of the annual performance factor according to VDI 4650
The annual performance factor according to VDI 4650 is an important factor for comparing plants according to their efficiency. It forms the basis for many funding measures and approval procedures.
Databases with heat pumps, collectors, boilers and storage tanks
GeoT*SOL is delivered with an extensive database. This contains more than
-4,000 collectors (flat plate collectors, tube collectors, air collectors)
-5,000 boilers (condensing boilers, wood boilers, pellet boilers, etc.)
-4,000 heat pumps (brine/water, air/water, water/water)
-600 storage tanks (combination and buffer storage, monovalent, bivalent, etc.)
In addition, manufacturers can have additional storage tanks, boilers, collectors and heat pumps added free of charge
Tariffs and blocking periods
Up to three blocking times can be set using the usual rules (intervals and limited duration) in order to be able to precisely depict the supply situation. Furthermore, the electricity price for the heat pump can be divided into high tariff (HT) and low tariff (NT).
Global climate data available
GeoT*SOL provides you with the latest TMY data of the DWD (current state 2017, averaging period 1995-2012) for Germany and more than 8,000 further climate locations for the whole world based on Meteonorm 7.3. You can use the interactive map to conveniently select the climate data. Locations not included are interpolated using satellite data and neighboring ground measuring stations. The import of your own measurement data takes place via files in DWD, Meteonorm or WBV format.
Configurable project report
The content can range from a short report with the annual performance figures to a detailed project report with diagrams and system components.
Profitability analysis
GeoT*SOL calculates the profitability according to the recommendation of the Federal Association of the Solar Industry (BSW) taking into account the funding: comparison of the costs of the heat pump system with a comparison system; capital value and production costs (heat price); modified internal rate of return (MIRR), profit taking into account the reinvestment.
Whats NewThe following new features and changes are included
The lower modulation limit for heat pumps is now better taken into account in the simulation. This applies to both simulation and data entry. The product dialog for heat pumps has been revised in terms of performance data and operating limits for the display and entry of product data. This change often results in a slight increase in the seasonal performance factors, as the performance of the heat pump no longer drops as sharply. Furthermore, heat pumps that actually have increasing efficiency in partial load operation are now better represented.
In system WPA 8, the heat pump is only used for preheating domestic hot water. This significantly increases the boiler's share of the load, and the heat pump no longer has to deliver such high flow temperatures.
The product selection dialog has been updated and made clearer.
The bivalence point diagram has been expanded to include the minimum heating output of the heat pump.
The demand for domestic hot water can now also be entered as annual energy demand and specific annual energy demand.
Loading the database at program startup and database access have been accelerated.
New program language: Czech.
The databases have been updated.
The following bugs have been fixed
Crash of the project report when a project image was selected on the Project Data page.
Crash when the product selection dialog was closed during a full-text search.
Crash when entering a custom soil type for the geothermal collector.
Graphic of the auxiliary heater in the bivalence point diagram was incorrect.
The flow temperature of the boiler was missing in the result graphics for bivalent systems.
The diagram type of the data series was not saved in the result graphics.
No brine water heat pumps with an intermediate circuit were permitted when groundwater was used as the heat source.
The flow temperatures in the predefined profiles of the result graphics were incorrect.
Crash when selecting certain domestic hot water storage tanks.
Seasonal performance factors were sometimes calculated and displayed incorrectly.
Valentin Software Geotsol 2026 R1 V2026.1.13 (x64) Multilingual
File size: 442.8 MB [/center]
Are you looking for a user-friendly special tool for the planning and design of heat pump systems? Then our GeoT*SOL program is the perfect project partner for your design work.
You can choose between different heat sources (soil, air and groundwater) and modes of operation (monovalent, monoenergetic and bivalent) for your location. The integration of solar thermal systems and bivalent systems with boiler as heat generators should be emphasized. Requirements, losses and consumption are determined as a result of a dynamic minute simulation. Based on this, electricity consumption, seasonal heat performance factor and costs are calculated taking into account off-periods and tariffs. With these parameters, GeoT*SOL evaluates the economic efficiency of the system. The heat price and return are shown for the heat pump system and a comparison system.
Simulation of the contribution margin of the heat pump and other heat generators
With GeoT*SOL you can simulate the heat pump system to the minute in order to determine annual performance figures (COP) and contribution margins. The systems can have other heat generators such as gas condensing boilers and solar systems. Movovalent, monoenergetic and bivalent modes of operation can be selected for operation.
Determination of the annual performance factor according to VDI 4650
The annual performance factor according to VDI 4650 is an important factor for comparing plants according to their efficiency. It forms the basis for many funding measures and approval procedures.
Databases with heat pumps, collectors, boilers and storage tanks
GeoT*SOL is delivered with an extensive database. This contains more than
-4,000 collectors (flat plate collectors, tube collectors, air collectors)
-5,000 boilers (condensing boilers, wood boilers, pellet boilers, etc.)
-4,000 heat pumps (brine/water, air/water, water/water)
-600 storage tanks (combination and buffer storage, monovalent, bivalent, etc.)
In addition, manufacturers can have additional storage tanks, boilers, collectors and heat pumps added free of charge
Tariffs and blocking periods
Up to three blocking times can be set using the usual rules (intervals and limited duration) in order to be able to precisely depict the supply situation. Furthermore, the electricity price for the heat pump can be divided into high tariff (HT) and low tariff (NT).
Global climate data available
GeoT*SOL provides you with the latest TMY data of the DWD (current state 2017, averaging period 1995-2012) for Germany and more than 8,000 further climate locations for the whole world based on Meteonorm 7.3. You can use the interactive map to conveniently select the climate data. Locations not included are interpolated using satellite data and neighboring ground measuring stations. The import of your own measurement data takes place via files in DWD, Meteonorm or WBV format.
Configurable project report
The content can range from a short report with the annual performance figures to a detailed project report with diagrams and system components.
Profitability analysis
GeoT*SOL calculates the profitability according to the recommendation of the Federal Association of the Solar Industry (BSW) taking into account the funding: comparison of the costs of the heat pump system with a comparison system; capital value and production costs (heat price); modified internal rate of return (MIRR), profit taking into account the reinvestment.
Whats NewThe following new features and changes are included
The lower modulation limit for heat pumps is now better taken into account in the simulation. This applies to both simulation and data entry. The product dialog for heat pumps has been revised in terms of performance data and operating limits for the display and entry of product data. This change often results in a slight increase in the seasonal performance factors, as the performance of the heat pump no longer drops as sharply. Furthermore, heat pumps that actually have increasing efficiency in partial load operation are now better represented.
In system WPA 8, the heat pump is only used for preheating domestic hot water. This significantly increases the boiler's share of the load, and the heat pump no longer has to deliver such high flow temperatures.
The product selection dialog has been updated and made clearer.
The bivalence point diagram has been expanded to include the minimum heating output of the heat pump.
The demand for domestic hot water can now also be entered as annual energy demand and specific annual energy demand.
Loading the database at program startup and database access have been accelerated.
New program language: Czech.
The databases have been updated.
The following bugs have been fixed
Crash of the project report when a project image was selected on the Project Data page.
Crash when the product selection dialog was closed during a full-text search.
Crash when entering a custom soil type for the geothermal collector.
Graphic of the auxiliary heater in the bivalence point diagram was incorrect.
The flow temperature of the boiler was missing in the result graphics for bivalent systems.
The diagram type of the data series was not saved in the result graphics.
No brine water heat pumps with an intermediate circuit were permitted when groundwater was used as the heat source.
The flow temperatures in the predefined profiles of the result graphics were incorrect.
Crash when selecting certain domestic hot water storage tanks.
Seasonal performance factors were sometimes calculated and displayed incorrectly.
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