Amazon.com Inc. said Oct. 16 that it will set up solar panels at its fulfillment centers in the U.K.

The solar panels will have an installed capacity of 20 megawatts. Macquarie Principal Finance will fund and develop the solar panel systems.

In the beginning, the company will set up large-scale rooftop solar systems on its 10 fulfillment centers over the next 18 months. The installation is subject to planning and landlord approval.

Amazon said it expects the solar panels to generate electricity equal to the amount of power required for 4,500 homes in the U.K. It also plans to reduce its carbon footprint by 6,000 tons of carbon dioxide annually.

The project is part of the Seattle-based company's previously announced commitment to deploy solar systems at 50 fulfillment centers globally by 2020.

The e-commerce giant also signed a deal to power its buildings in the U.K. with 100% renewable electricity. In addition, Amazon will install battery systems at a number of its fulfillment centers.