The business case for autonomous inspection robots is typically built around two categories of value: labor savings from reduced manual inspection rounds, and downtime avoidance from earlier fault detection. Both are real and both should be in your ROI model — but they require different approaches to quantify, and the second category is often dramatically underestimated.
Calculating Inspection Labor Savings
Start with your current inspection program: how many inspection rounds per week, how long each round takes, who conducts them (contract technicians, in-house trades, dedicated inspection team), and what the fully loaded cost per hour is. Multiply rounds × hours × cost to get your current annual inspection labor cost.
Robotic inspection with Boston Dynamics Spot reduces this by 50–70% in most deployments, based on Boston Dynamics' published benchmark data. The remaining 30–50% of human inspection time is redirected to exception investigation, complex fault analysis, and the inspection tasks the robot can't perform.
For a facility spending $300,000/year on inspection labor, the savings at 60% reduction is $180,000/year. This alone typically justifies the deployment economics. But it's not the largest value driver.
Calculating Downtime Avoidance Value
The bigger number — and the one most facilities underestimate — is downtime avoidance from earlier fault detection. Start with your annual unplanned downtime hours and your cost per hour of downtime (typically $5,000–$50,000 per hour for industrial operations). Multiply to get annual downtime exposure.
Boston Dynamics reports that facilities using predictive maintenance programs enabled by Spot inspection achieve 18.5% reduction in unplanned downtime. Apply that 18.5% to your downtime exposure to get the annual downtime avoidance value.
For a facility with 100 unplanned downtime hours per year at $15,000/hour: annual downtime cost = $1,500,000. At 18.5% reduction: $277,500/year in avoided downtime. Combined with the $180,000 in inspection labor savings, total annual value is $457,500 — against a deployment cost that pays back in well under 12 months.
Building Your Facility's Model
Use our interactive ROI calculator with your actual inspection labor costs and downtime exposure. For a facility-specific analysis that includes your actual inspection scope, equipment criticality, and operational profile, contact Actel Robotics. We also have a detailed Spot ROI whitepaper with more methodology detail.