A kilowatt hour is the amount of electrical energy consumed when 1,000 watts are used for one hour. Use kilowatt hour to measure production or consumption. The abbreviation kwh is acceptable on second reference. The word is singular and takes singular verbs. There's no such thing as a kudo .
Praise is simpler, less pretentious synonym.
Lake Washington, Green Lake. The last time it rained, I forgot my umbrella. Past may be a better word. They worked together the last five months . Also, past history and past experience are redundant.