| key performance indicator (kpi) | an indicator is a statistic used to measure something. a key performance indicator it is an accurate, or particularly good, measure of a particular set of characteristics. |
| kilowatt hour | an energy unit equivalent to 1000 watts used for 1 hour. it might be referred to as a unit of electricity = 1 kwh. |
| kilowatt-hours peak (kwp) | the maximum amount of power a photovoltaic module is able to generate under standard test conditions. |
| kyoto protocol | is an amendment to the united nations framework convention on climate change, assigning mandatory targets for the reduction of greenhouse gas emissions to signatory nations. |