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| Betz' grænse× | Udviklet energiomkostning× | |
|---|---|---|
| Fagområde | Termodynamik | Termodynamik |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 1920 | 2009 |
| Ophavsperson≠ | Albert Betz | Lazard |
| Type≠ | Theoretical limit | Cost comparison framework |
| Oprindelig kilde≠ | Betz, A. (1920). Das Maximum der theoretisch möglichen Ausnützung des Windes durch Windmotoren. Zeitschrift für das gesamte Turbinenwesen, 26, 307-320. link ↗ | Lazard. (2023). Levelized Cost of Energy Analysis (v17.0). Lazard Ltd. link ↗ |
| Aliasser | Lanchester-Betz limit, wind turbine efficiency limit | LCOE, levelized cost analysis |
| Relaterede | 3 | 3 |
| Resumé≠ | The Betz Limit states that no wind turbine can extract more than 59.3% of the kinetic energy from flowing wind, regardless of design. This fundamental thermodynamic limit arises because extracting energy slows the wind, which then blocks further energy extraction. Albert Betz derived this limit in 1920 from momentum and energy conservation. Modern wind turbines achieve 35-45% efficiency, approaching this theoretical maximum. | Levelized Cost of Energy (LCOE) is a standardized metric that spreads the total lifecycle cost of an energy project over its lifetime energy output. It enables fair comparison of electricity generation technologies with different capital structures, operating costs, and lifetimes. LCOE is widely used for technology evaluation, investment decisions, and energy policy analysis. |
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