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GeoTSOL 2026, developed by Valentin Software GmbH, is a professional design and simulation application dedicated to heat-pump systems, sitting within the engineering and renewable-energy software category. The single-version release enables planners to evaluate soil, air or groundwater heat sources across monovalent, monoenergetic and bivalent operating modes, while freely combining boilers, solar-thermal collectors and photovoltaic arrays in one project. A dynamic minute-by-minute simulation engine calculates electricity demand, seasonal performance factors, running costs and further operational data, respecting utility blocking periods and variable tariffs so that designers can balance comfort, efficiency and economy before installation. Output tables, graphs and key figures can be filtered and transferred directly into a client-ready project report, streamlining documentation for permits, subsidies or customer presentation. Typical use cases include sizing residential brine-to-water rigs, comparing air-source versus ground-source alternatives for apartment buildings, optimising hybrid boiler-heat-pump setups in retrofits, and analysing the impact of on-site PV generation on seasonal coefficient of performance. Because every climate region, heat-load profile and tariff structure is supported, engineers, energy consultants and technology vendors rely on GeoTSOL 2026 to reduce planning risk and to substantiate pay-back statements with traceable hourly results. The software is available for free on get.nero.com, with downloads provided via trusted Windows package sources (e.g. winget), always delivering the latest version, and supporting batch installation of multiple applications.
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