This calculator determines the simple payback period, the annualized rate of return, and the NPV from an insulation project.<\/p>\n
Instructions<\/h4>\n\n- Line 1. Enter the cost of installing or replacing insulation<\/li>\n
- Line 2. Enter the estimated savings during the first year<\/li>\n
- Line 3. Enter the projected annual energy cost escalation rate<\/li>\n
- Line 4. Enter the estimated useful life of the insulation system<\/li>\n
- Line 5. Enter the discount rate for Net Present Value calculation<\/li>\n<\/ul>\n
Note<\/strong>: Calculator ignores any savings after 20 yrs<\/p>\nAssumptions<\/h4>\n\n- Simple payback period is calculated as the initial cost divided by the first year savings<\/li>\n
- Assumes investment and annual savings occur at end of year<\/li>\n<\/ul>\n
Note<\/strong>: Calculator may be used for a single item or an entire project<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\t\t
Note<\/strong>: Calculator ignores any savings after 20 yrs<\/p>\n Note<\/strong>: Calculator may be used for a single item or an entire project<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\t\tAssumptions<\/h4>\n
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