Amazon has announced a round of investment in four renewable energy projects, continuing its drive for power purchase agreements (PPAs) to power its data centers. The projects signed include 60 MW from the 165 MW Gunnedah solar farm due for 2021 in New South Wales, Australia; a 122 MW wind project due for 2022 in Vasternorrland, Sweden; a 50 MW solar plant due for 2021 in Zaragoza, Spain; and a 65 MW solar farm in the US state of Virginia. Prior to this latest round, three Amazon wind farms totaling 458 MW were commissioned in three US states in 2016; six solar farms totaling 260 MW in Virginia followed in November 2017. In April 2019 the company announced three wind…