Apple has strengthened its commitment to using completely renewable energy as a business and joined RE100, a worldwide renewable energy initiative made up of some of the planet's biggest companies.
In a news release, the company said that it would collaborate with RE100 to "drive clean energy into the manufacturing supply chain."
Lisa Jackson, Apple's vice president for environment, policy and social initiatives, made the announcement on Monday during a speech at Climate Week NYC.
"Apple is committed to running on 100 percent renewable energy, and we're happy to stand beside other companies that are working toward the same effort," she said.
"We're excited to share the industry-leading work we've been doing to drive renewable energy into the manufacturing supply chain, and look forward to partnering with RE100 to advocate for clean-energy policies around the world."
Jackson also announced that Apple had finished building a 50-megawatt solar farm in Arizona, which is set to supply renewable energy to Apple's "global command data center" in Mesa. Utility Salt River Project worked with Apple on the project.
Apple has made renewables and sustainability a cornerstone of its business. It says that operations in the U.S., China and 21 other countries are powered by 100 percent renewable energy while in 2015, 93 percent of global operations were powered with renewables.
Bank of America and Amalgamated Bank also joined RE100 on Monday.
In a news release, Bank of America said that it had made a commitment to both carbon neutrality and purchasing 100 percent renewable electricity by 2020.
"Addressing global issues like climate change and the transition to a sustainable and low-carbon future takes collaboration, innovation and investment," Anne Finucane, vice-chairman, Bank of America, said in a statement.
"The expansion of our operational goals to 2020, achieving carbon neutrality, and the purchase of 100 percent renewable electricity build on our existing environmental commitment and responsible growth strategy," she added. "This demonstrates the measurable actions we are taking to reduce our environmental impacts."