Multistage Pump 15-Year TCO Calculator

Duty Point & Operation

Flow Q (m³/h)

Head H (m)

Pump efficiency η (%) QDL/QDLS at BEP: 65–75%

Motor efficiency (%) IE3 ≈ 92%, IE4 ≈ 95%

Run hours per year

Electricity rate ($/kWh)

Cost Inputs

Initial pump + install ($)

Annual maintenance ($) Routine seal change, spares

Annual downtime cost ($) Lost prod. × MTBF probability

Lifetime (years)

Enter duty point and cost inputs to generate lifecycle cost analysis.

15-Year Total Cost of Ownership

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Initial purchase + install —

Energy Cost (Lifetime) —

Maintenance (Lifetime) —

Downtime (Lifetime) —

Shaft power requirement	—
Annual energy cost	—
Energy share of LCC	—
Initial price share of LCC	—

Implication —

Request Project-Specific TCO Worksheet →

Methodology: Pump shaft power P = (Q × H × ρg) / (ηp × ηm), with ρg = 9.81 (water at standard conditions). Lifetime energy = P × hours × years × rate. The split percentages reflect Hydraulic Institute / Europump LCC field averages: initial purchase typically 10%, energy 30–35%, maintenance 18–22%, downtime + disposal 35–40% over 15-year service for industrial multistage applications.