I worked near a datacenter, and it never made any discernible noise. There were portable gas turbines a few miles away, installed to expand a city-owned power

I worked near a datacenter, and it never made any discernible noise. There were portable gas turbines a few miles away, installed to expand a city-owned power plant, because the NIMBYism process to approve a real power plants meant that we didn't have enough, and the only way to prevent rolling blackouts was to install temporary power plants that didn't need environmental approval. A gas turbine isn't a normal part of a data center operations, and the only reason the need them is when NIMBYists make it difficult to get enough stable power to keep critical infrastructure running.