Generator. Commencing on the Lease Commencement Date, Tenant shall have the right to connect to the Building back-up generator (the "Generator XE "Generator" "), for Tenant’s Share of the Generator’s capacity (after accounting for Building Common Area requirements) to provide back-up generator services to the Premises at no additional cost. During the Lease Term and any renewal terms, Landlord shall maintain the Generator in good working order, condition and repair. The costs of operation, maintenance, and repair of the Generator shall be included in Operating Expenses to the extent provided in Section 4.2.4, and Tenant shall not be responsible for any costs with respect thereto outside of Tenant’s Share of Operating Expenses. Landlord shall not be liable for any damages whatsoever resulting from any failure in operation of the Generator, or the failure of the Generator to provide suitable or adequate back-up power to the Premises, including but not limited to, loss of profits, loss of rents or other revenues, loss of business opportunity, loss of goodwill or loss of use, in each case, however occurring, or loss to inventory, scientific research, scientific experiments, laboratory animals, products, specimens, samples, and/or scientific, business, accounting and other records of every kind and description kept at the Premises and any and all income derived or derivable therefrom.

Building Generator. Commencing on the Lease Commencement Date, Tenant shall have the right to connect to the Building back-up generator, which Landlord shall install as part of Landlord’s Work (the "Generator"), for Tenant’s Share of the Generator’s capacity (after accounting for any Building Common Area requirements) to provide back-up generator services to the Premises. During the Lease Term, Landlord shall maintain the Generator in good condition and repair, and Tenant shall be responsible for a share of the costs of such maintenance and repair based on the proportion of the Generator capacity allocated to the Premises. Notwithstanding the foregoing, Landlord shall not be liable for any damages whatsoever resulting from any failure in operation of the Generator, or the failure of the Generator to provide suitable or adequate back-up power to the Premises, including but not limited to, loss of profits, loss of rents or other revenues, loss of business opportunity, loss of goodwill or loss of use, in each case, however occurring, or loss to inventory, scientific research, scientific experiments, laboratory animals, products, specimens, samples, and/or scientific, business, accounting and other records of every kind and description kept at the Premises and any and all income derived or derivable therefrom.