District Energy & Thermal Network Equipment calculator

Pump Power Cost Calculator

Estimate distribution pump electricity cost for chilled-water, hot-water, condenser-water, or district heating loops using pumped volume or network operating scope. Quantity times rate times capture factor, plus a fixed adjustment, builds a defensible weighted cost.

What this calculator does

  • Estimate distribution pump electricity cost for chilled-water, hot-water, condenser-water, or district heating loops using pumped volume or network operating scope.
  • Use it when pump power cost in district energy and thermal network equipment is being put through a district energy and thermal network equipment weighted-cost review.
  • Turns pumped loop volume or duty units, pump energy cost per duty unit, pump duty share included into a weighted cost for pump power cost in district energy and thermal network equipment.

Formula used

  • Included variable pump power cost = pumped loop volume or duty units × pump energy cost per duty unit × pump duty share included
  • Total pump power cost = included variable pump power cost + fixed demand or standby charge

Inputs explained

  • Pumped loop volume or duty units: Use chilled-water or hot-water volume, pump runtime equivalent, or duty units from metering/VFD logs for the period.
  • Pump energy cost per duty unit: Convert pump kW, head, flow, efficiency, and utility tariff into cost per m³, kgal, or pump-hour.
  • Pump duty share included: Use 100% for the full pump train or a partial share for one pump, loop, pressure zone, or operating mode.
  • Fixed demand or standby charge: Add demand charges, VFD standby loss, minimum utility charge, or allocated plant electrical cost.

How to use the result

  • Use it when pump power cost in district energy and thermal network equipment is being scored for capture or weighted cost.
  • Risk-adjustments and discount rates are not in the formula; layer them on top for capital reviews.

Common questions

  • Why use this pump power cost tool for district energy and thermal network equipment? Estimate distribution pump electricity cost for chilled-water, hot-water, condenser-water, or district heating loops using pumped volume or network operating scope. You get a weighted cost you can defend before quoting, scheduling, or sign-off.
  • What numbers should I focus on first? pumped loop volume or duty units, pump energy cost per duty unit, pump duty share included usually move the weighted cost most. Pull from measured district energy and thermal network equipment runs, supplier data, and recent quotes rather than memory.
  • How should I use the result? Use the weighted cost in the district energy and thermal network equipment business case or quote build-up.
  • What should I verify first? Confirm the capture factor is honest; over-stated capture is the most common reason these models miss.

Last reviewed 2026-05-12.