Abstract - It is estimated that up to 30 percent of the country’s 12 million servers are actually “comatose” – abandoned by application owners and users but still racked and running, wasting energy and placing ongoing demands on data center facility power and capacity. The Comatose Server Savings Calculator lets you input data specific to your environment to get a quick approximation of the results you can expect by decommissioning your comatose servers. Consolidating and decommissioning unused equipment requires effort and organizational commitment, but as you will see from the calculations, the potential rewards are significant.