There is no definitive answer to this question as it will depend entirely on the terms and conditions of the lease agreement. For example, if the lease agreement stipulates that the rental is inclusive of all utilities, the landlord would not be allowed to install the meter after the lease has been signed as this would alter the terms of the lease. If your lease stipulates that you are liable to pay for all the utilities, the landlord would in all probability be allowed to install a prepaid meter. If a prepaid meter exists on the property prior to occupation, you would be required to use the meter. It is highly recommended that legal advice be sought in this regard.