Xspec Engineering is an energy efficiency consulting company based in Ann Arbor, MI. It provides professional energy assessments for commercial and industrial buildings or systems in lower Michigan. Xspec pays special attention to the quality and value of its services, and will not perform an assessment if it can not substantially reduce the customer's energy use. Xspec's main services include Level 1, Level 2, and custom targeted assessments. Xspec will give free estimates on any of these. Assessments will pay for themselves in the form of energy savings from implemented efficiency measures, and typically low- to no-cost measures are found. Rebates, grants, and/or financing loans are often available to assist in implementation, and Xspec will help a customer understand which of these it has as options. Xspec also offers general energy efficiency consulting services on an hourly or flat fee basis.