Risk reduction
Risk reduction is the present value difference between the baseline expected-loss exposure and the expected-loss exposure after renewal. It can be interpreted as avoided risk cost.
Renewal risk valuation
Quantify risk reduction from asset renewal.
Model baseline asset risk, replacement timing, residual risk after renewal, and intervention cost to estimate present-value risk reduction, net benefit, and benefit cost ratio.
Risk over time
Annualized risk exposure
Configuration
Renewal intervention
Sensitivity
Key value drivers
Each row flexes one assumption while holding the other inputs constant.
Methodology
How renewal risk valuation works
This calculator treats asset risk as annual expected loss: probability of failure multiplied by consequence of failure. The baseline case estimates the present value of doing nothing. The probability of failure remains constant through the asset's normal expected life, then enters the wear-out phase and rises according to the selected curve shape.
Net benefit and BCR
Net benefit subtracts the discounted intervention cost from the discounted risk reduction. Benefit cost ratio divides risk reduction by intervention cost.
Discounting
Discounting converts future expected losses and renewal costs into present-value dollars so that timing can be compared consistently.
Use of results
Curve shape should reflect the asset failure mode after normal life is exceeded. Linear curves suit steady deterioration, while late-life acceleration is useful where failure probability stays relatively flat before rising sharply near the end of life.