{"id":137951,"date":"2025-07-21T17:30:18","date_gmt":"2025-07-21T15:30:18","guid":{"rendered":"https:\/\/www.velasolaris.com\/?post_type=funktionen&p=137951"},"modified":"2025-07-22T10:41:16","modified_gmt":"2025-07-22T08:41:16","slug":"energy-demand-simulation","status":"publish","type":"funktionen","link":"https:\/\/www.velasolaris.com\/en\/features\/energy-demand-simulation\/","title":{"rendered":"Energy Demand Simulation"},"content":{"rendered":"
Home<\/a><\/span> <\/i> Features<\/a><\/span> <\/i> Energy Demand Simulation<\/span><\/span><\/div>\n\n\n
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Energy Demand Simulation for Optimal HVAC System Design<\/h1>\n\n\n\n

For engineers and planners, it is essential to consider the individual energy demands of the projects they design, such as residential buildings, hospitals, district heating networks and industrial processes, in order to plan systems effectively. This process provides the basis for correctly sizing components such as heat pumps, boilers, combined heat and power (CHP) plants, and buffer storage tanks. With Polysun, you can simulate all common energy demand profiles, including heating, cooling and electricity demand, in order to identify the optimal design and sizes of components for efficient energy systems.<\/p>\n\n\n\n

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Why Energy Demand Simulation is Critical for Engineers and Planners?<\/h2>\n\n\n\n

Accurate energy demand simulation prevents over- or under-sizing of energy generation systems, such as combinations of heat pumps. Oversizing results in unnecessarily high investment costs, reducing the project’s economic viability. Undersizing can lead to comfort loss or system overload, shortening the system\u2019s lifespan and decreasing energy efficiency. By using Polysun for energy demand simulation, you can plan reliable, efficient, and cost-effective energy systems for buildings.<\/p>\n\n\n\n


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Domestic hot water, heating & cooling energy demand<\/h3> <\/div>\n
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The thermal energy demand comprises the heating and cooling energy demand. Polysun offers flexible and versatile approaches to specify this energy demand for designing an efficient energy system.<\/p>\n<\/div>\n <\/div>\n\n <\/div>\n\t\t\t\t\t\t\t

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Electricity Consumption & Generation<\/h3> <\/div>\n
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Consumption profiles can either be selected from a database or imported based on measured data. This allows the sizing of electricity generators (e.g., PV, CHP, PVT systems) to be optimally aligned with electricity consumption (e.g., heat pumps, electric vehicles, battery storage).<\/p>\n<\/div>\n <\/div>\n\n <\/div>\n\t\t\t\t\t\t\t

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Flexibility with Energy Sink\/Source<\/h3> <\/div>\n
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Heat or cooling loads and sources can be individually configured. Using the “energy sink\/source” component, all common thermal load profiles\u2014such as cooling demand, waste heat utilization, or process heat\u2014can be modeled to size HVAC systems based on energy demand effectively.<\/p>\n<\/div>\n <\/div>\n\n <\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t <\/div>\n <\/div>\n\t\t\t\t\n\t\t\t\t <\/div>\n\t\t <\/div>\n <\/section>\n<\/div>\n<\/div>\n\n\n\n

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Heating and Cooling Energy Demand in Energy System Design<\/h2>\n\n\n\n

Polysun offers multiple approaches to simulate heating and cooling energy demand. These include modeling buildings with customizable standard dimensions when load profiles are unavailable, using models based on heating cost statements, or employing detailed hourly profiles. Additionally, Polysun supports importing load profiles from other building simulation software, such as EnergyPlus or IDA ICE, ensuring accurate energy demand simulation based on available data for optimal system design.<\/p>\n<\/div>\n\n\n\n

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Electrical Demand in Energy System Planning<\/h2>\n\n\n\n

Modern energy systems for buildings and districts incorporate various electrical components. Polysun enables precise planning by accounting for electrical generators\u2014like photovoltaic systems, combined heat and power plants, or battery storage\u2014and electrical consumers, such as heat pumps, charging stations, or electrical profiles. This allows you to align electricity generation with actual consumption, optimizing system efficiency and maximizing self-consumption.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Why Customers Choose Polysun for Energy Demand Simulation?<\/h2>\n\n\n\n
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Streamlined Simulation & Visualization<\/h3> <\/div>\n
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