Industrial Catalog
Solar
Sustainable pumping solutions powered by photovoltaic solar energy.
Solar
Solar · Technical Overview
The range covers the main configurations of a solar pumping system: EOS BS3 (3") and EOS BS4 (4") as solar submersible pumps for boreholes and deep wells, EOS TPSOL for surface pumping, EOS TDSOL for swimming pool circulation, and the multistage EOS TMVSOL for pressurisation. Power ratings align with two controller classes — EOS 36-48/500 (up to 500 W of PV panel input) and EOS 96/1000 (up to 1000 W) — covering manometric heads up to 205 metres and flows up to 15 m³/h, depending on the model and the irradiation available through the day.
For hybrid installations where the same borehole must run from PV panels and a grid backup, JOVAL manufactures the CFJ hybrid solar controller — a variable frequency drive with integrated MPPT, PV input up to 800 VDC, three-phase 230 V or 400 V output and 0–400 Hz operation, driving conventional submersible pumps directly from the array and switching to grid supply when needed. Drive efficiency is 97–98 %, with MPPT tracking at 99 %.
The full EOS range and the CFJ controller are manufactured and tested on our in-house hydraulic test rig at the Fafe factory, under an ISO 9001:2015 quality system. Technical support is provided directly by the factory, with permanent stock in Portugal.
Frequently asked questions
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How do I size the PV array for an EOS solar pump?
The panel power sets the controller class. The 36-48 V configurations covered by the EOS 36-48/500 need an array of up to 500 W; the EOS 96/1000 accepts up to 1000 W. Flow varies with irradiation through the day.
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Is the flow of a solar pump constant throughout the day?
No. Flow follows the solar irradiation curve: highest around midday, lower in early morning and late afternoon, and stops at night. Sizing should target the total daily volume, not the peak instantaneous flow rate.
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Does the EOS range run directly off the panels or does it need batteries?
EOS models connect directly to the PV panels through their controller, with no battery required. Water stored in an elevated tank acts as the energy reserve, avoiding the cost and maintenance of battery banks altogether.
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What are the typical applications of solar water pumping in Portugal?
Drip irrigation on small and medium farms, livestock watering, tank filling for off-grid homes, water abstraction on farms and greenhouses, and solar-powered swimming pool circulation. The full EOS range covers these cases.
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Can the CFJ controller be used with non-solar JOVAL submersibles?
Yes. The CFJ is a hybrid VFD with MPPT that drives conventional three-phase pumps directly from the PV array. It is the way to solarise existing boreholes fitted with pumps from the JOVAL Submersible Pumps range.
Can't find what you need?
Our technical team can help select the right equipment for your installation. Contact us with your project details — borehole depth, required flow rate and application.