Will the landlord bear the loss caused by the power outage?

The landlord should be able to bear the loss, because as a paved house, the landlord should ensure the applicability of its commercial operation. Because the landlord's fault led to power failure, you can't operate normally, so the losses suffered should be borne by the landlord. If it is a rented house, the contract signed with the intermediary company can bear joint and several liability for compensation.