Your electricity or water may be shut off if you have failed to pay your bill(s).
Your service provider / network operator will approach each case separately and attempt to reach an agreement with you. E.g., you may be allowed to pay off your debt under a payment agreement.
Before your power/water is shut off, your service provider will send you a warning. If you fail to pay your debt after you have been warned, the power network operator or water company will shut off your power or water to prevent your debt from increasing further.