{"id":145295,"date":"2026-10-20T10:54:53","date_gmt":"2026-10-20T08:54:53","guid":{"rendered":"https:\/\/www.velasolaris.com\/?post_type=funktionen&p=145295"},"modified":"2026-10-20T10:54:56","modified_gmt":"2026-10-20T08:54:56","slug":"chp-system","status":"publish","type":"funktionen","link":"https:\/\/www.velasolaris.com\/en\/features\/chp-system\/","title":{"rendered":"CHP system"},"content":{"rendered":"
Home<\/a><\/span> <\/i> Features<\/a><\/span> <\/i> CHP system<\/span><\/span><\/div>\n\n\n
\"CHP<\/figure>\n\n\n\n

CHP system design: simulate combined heat and power systems dynamically<\/h1>\n\n\n\n

A combined heat and power (CHP) unit \u2013 also called cogeneration \u2013 produces electricity and heat from the same fuel. But how large should it be to run long and profitably? Should it follow heat demand, power demand or electricity prices? And how much should a heat pump or peak-load boiler cover?<\/p>\n\n\n\n


With Polysun, you can compare different supply concepts and validate the sizing of the CHP unit before any equipment is ordered. The software shows which concept reliably covers the heat demand, avoids oversizing and achieves the lowest life-cycle costs.<\/p>\n\n\n\n

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Request Project Support<\/a><\/div>\n\n\n\n
Try for free<\/a><\/div>\n\n\n\n
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Why validate CHP systems before construction?<\/h2>\n\n\n\n

CHP sizing is often based on load duration curves, full-load-hour rules of thumb and safety margins. Buffer storage, cycling, other heat generators and volatile electricity prices are left out. The result: units that are oversized, cycle too often or generate power exactly when it is worth least.<\/p>\n\n\n\n

With Polysun, different system variants can be validated using real climate data, load profiles and electricity prices. The software calculates operating hours, starts, coverage shares and costs for every point in the year. This enables the most suitable concept to be identified early on and allows recommendations to clients and investors to be backed up with simulation results.<\/p>\n<\/div>\n\n\n\n

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Comparing variants in hours instead of weeks<\/h3> <\/div>\n
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Heat-led, power-led or price-driven, with or without a heat pump: all concepts are compared under the same boundary conditions.<\/p>\n<\/div>\n <\/div>\n\n <\/div>\n\t\t\t\t\t\t\t

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Avoid oversizing<\/h3> <\/div>\n
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Assumptions are replaced by system-based validation. The simulation shows which CHP output and storage volume actually meet the demand.<\/p>\n<\/div>\n <\/div>\n\n <\/div>\n\t\t\t\t\t\t\t

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Electricity and heat in one simulation<\/h3> <\/div>\n
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Polysun simulates power and heat generation together and shows how much electricity is used on site, exported or consumed by the heat pump.<\/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<\/div>\n<\/div>\n\n\n\n

What typical CHP applications does Polysun cover?<\/h2>\n\n\n\n
\"hydraulic<\/figure>\n\n\n\n
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Polysun enables different design variants to be simulated and their operating behaviour to be compared under real operating conditions. Each variant is calculated using the same climate data and load profiles to ensure a fair and traceable comparison.<\/p>\n\n\n\n