For my use case, bout Rm4/mth, 2 person, averagely uses 85L of water every month (2L hot, 3L cold, 80L ambient)

If u use more hot or cold water, the power usage will be a bit higher

Hi bro, bout 1.5L each ya, after that compressor will need to rest bout 20min to prevent overheat
Power consumption will be lower if u use less hot or cold water, but overall still uses much less power than water purifiers with tank, for my use case, TNB bill bout Rm100/mth, my WD516 uses bout Rm4/mth of electricity only