1 guidance on life cycle cost analysis required by executive order 13123 january 8 2003 summary general principles of method a definition b time adjustments c formula d applications lcca e note discounted payback dpb and simple spb f uncertainty assessment g considering emissions reductions from energy conserving alternative 2 federal lcc criteria discount rate doe price escalation rates use constant dollars study period presumption effectiveness 3 evaluation espcs utility contracts financing related input data assumptions 4 bundling efficiency projects 5 for using products 6 building computer programs nist blcc program associated other 7 resources handbook 135 annual supplement to ashb femp workshops training videos web sites contacts appendix additional government documents providing example feasibility solar water heating systems us coast guard base problem