Ellis G. Guiles Jr. is Vice President, TAG Mechanical Systems Inc., and author of \LEED Follow or Get Out of the Way\". He is a Licensed Professional Engineer in the state of New York a Residential Energy Services Network Home Energy Rater Building Analyst and Heating Specialist. Additional certifications include P.E. M.B.A. HERS Rater and BPI Certified (Shell Heating AC/Heat Pump)."