That's 32500000000 kWh/y
= 32500000000 * k * W * h / y= 32500000000 * k * W * h / (365 * 24 * h)= 32500000000 * k * W * h / 8760 / h= 32500000000 / 8760 * k * W * h / h= 3710046 * k * W * 1= 3710046 kW
(You actually corrected yourself later when converting to mW.)
That's 32500000000 kWh/y = 32500000000 * k * W * h / y = 32500000000 * k * W * h / (365 * 24 * h) = 32500000000 * k * W * h / 8760 / h = 32500000000 / 8760 * k * W * h / h = 3710046 * k * W * 1 = 3710046 kW(You actually corrected yourself later when converting to mW.)
Since watt is joule per second, kwh per year is one kilojoule per second per hour per year.
Electricians have played us like fools
kWh is kilojoule per second times 3600 seconds or 3600 kilojoule. kWh/y is 3600 joule per year or 3600 kilojoule / (24*3600*365) ~0.1W
Even more cursed
… exactly as I intended