Pump Energy Cost Estimator

Pump Energy Cost Estimator — Annual kWh and $ | BBP

Pump Energy Cost Estimator

Estimate annual electricity consumption and cost for a mixed flow pump installation, and model the savings a right-sized BBP pump typically delivers. Benchmarked against the Revel Energy 2019 California pistachio farmer data (400 HP × 12 hr/day ≈ 1.3M kWh/year).

Your current installation

Motor power (kW)

Nameplate shaft power. 400 HP ≈ 298 kW

Operating hours / day

Average across the year

Operating days / year

Irrigation ≈ 150–250; cooling ≈ 350

Electricity tariff ($/kWh)

CA industrial ≈ $0.20; EU ≈ $0.15; US ≈ $0.08

Motor load factor (0–1)

Fraction of nameplate drawn in normal operation

Current pump distance from BEP (%)

0% = on BEP, 25% = typical oversized, 40% = severely off

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kWh / year (current installation)

Annual electricity cost (current)—

Energy draw per operating hour—

Benchmark: Revel 2019 pistachio (400 HP × 12 h/d)1,306,488 kWh/yr

Projected savings with a right-sized BBP pump—

Projected $ savings / year—

Simple payback on pump replacement (indicative)—

How the savings estimate works

Right-sizing to ±15% of BEP cuts the hydraulic inefficiency associated with off-BEP operation. The industry consensus range is 20–40% energy reduction when replacing an oversized or poorly-matched pump with one sized to the duty curve. We model the midpoint of your current off-BEP setting against a BBP pump tested at 80–85% BEP per ISO 9906 Grade 2B. Actual savings depend on system curve, VFD use, and duty cycle — request a site-specific analysis for a firm number.

Get a right-sizing analysis for your duty →

Sources: Revel Energy “Irrigation Pumps Electricity Usage” (2019 CA pistachio farmer benchmark); ISO 9906:2012 hydraulic acceptance; ANSI/HI 20.3-2020 efficiency prediction. Estimate assumes constant-speed operation; VFDs can further reduce part-load energy by 15–30% but are not modeled here.