Solar HVAC Pumps

Solar HVAC pumps — PV-powered chilled water, condenser and circulation pumps

PV-powered pumps for HVAC and building services: chilled water, condenser water, hot water and glycol circulation. Hybrid PV + grid + BESS designs deliver 40–70% pumping-energy savings for offices, data centers, hospitals and industrial HVAC.

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Chilled and condenser water pumps 5–2,500 kW, up to 5,000 m³/h
Inline, end-suction, split-case and vertical multistage — VFD-ready
Hybrid PV + grid + BESS controllers for 24/7 circulation
IE4 / IE5 motors, EN 733 / ISO 2858 hydraulic standards
Grundfos, KSB, Wilo, Xylem, Armstrong, Sulzer, Lowara

Section 1

Related HVAC & pump categories

Solar industrial pumps (hub)All PV-driven industrial pumps.Open Chilled water pumpsPrimary/secondary chiller loops.Open Cooling water pumpsCondenser and cooling-tower loops.Open Industrial HVACProcess cooling, clean-room and dry-room HVAC.Open Chiller plantsAir- and water-cooled chillers with PV integration.Open Building management systemsBMS control of hybrid PV pumping.Open

Section 2

Engineering tools

Cooling capacity calculatorEstablish loop kW before sizing pumps.Open Pump energy calculatorkWh & USD from flow, head and efficiency.Open Project cost estimatorHVAC pump + PV + BESS CAPEX.Open Engineering CenterFull library of HVAC and PV calculators.Open

FAQ

Solar HVAC Pumps — frequently asked

Can PV realistically power a chilled water pump 24/7?

For daytime-dominant loads (offices, schools, some retail) direct PV covers 60–80% of pumping energy. For 24/7 loads (data centers, hospitals, cold storage) use a hybrid PV + grid + BESS design; PV+BESS typically covers 40–60% of annual pumping kWh with 4–7 year payback.

What efficiency gain from switching to IE5 + VFD?

Retrofitting fixed-speed EFF2/IE2 pumps with IE4/IE5 motors and VFDs cuts chilled-water pumping energy 30–45%. Adding PV then displaces most of the remaining grid consumption during daylight hours.

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