GLOSSARY - K

 


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Kelvin (symbol: K)

Scientific unit of temperature. Color temperature is measured on the Kelvin scale.

Conversion from to Formula  
kelvins degrees Celsius °C = K − 273.15  
degrees Celsius kelvins K = °C + 273.15  
kelvins degrees Fahrenheit °F = K × 1.8 − 459.67  
degrees Fahrenheit kelvins K = (°F + 459.67) / 1.8  

Kilowatt Hour (kWh)

KWH. A unit of measurement for electrical energy. One kilowatt hour equals 1000 watts of energy used for one hour.

Kilowatt Demand Limiting / KW Demand Limiting

An energy management strategy that reduces energy consumption when a system's electric power meter exceeds an operator-defined threshold.

When power consumption exceeds defined levels, the system automatically adjust setpoints, de-energizes low priority equipment, and takes other pre-programmed actions to avoid peak demand charges. As the demand drops, the system restores loads in a predetermined manner.