It is not possible for a low-end PC to consume 1 kilowatt of power per hour. A typical low-end PC will consume around 50-150 watts per hour, depending on its components and usage. On the other hand, 1 kilowatt is a large amount of power that is equivalent to running multiple high-end PCs or appliances at the same time. If you're experiencing high power consumption from your PC, it may be due to a faulty component or inefficient power supply, and it's best to have it checked by a professional.