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JETS Energy resources

Handy Tools

Practical engineering tools for early-stage assessment, project planning and installation checks. Inputs and results should be independently verified against project requirements and manufacturer data.

Cable Pulling Tension Calculator

Calculate continuous pulling tension across tray, conduit, bends, slopes and vertical route sections.

  • Continuous segment calculations
  • Bend and sidewall-pressure checks
  • KEI 400 mm² aluminium DC cable preset
  • Printable engineering results
Open calculator

Lighting Level Calculator

Estimate luminaire quantities, layout spacing and achieved illumination using the lumen method.

  • Room-index calculation
  • Utilisation-factor interpolation
  • Luminaire rows and columns
  • Achieved lux and spacing checks
Open calculator

Pole Foundation Calculator

Carry out a preliminary pole-foundation stability check using wind overturning and stabilising moments.

  • Three-part pole geometry
  • Wind-pressure calculation
  • Foundation stabilising moment
  • Safety-factor PASS/FAIL check
Open calculator

AC & DC Load Sizing

Build an editable AC and DC load schedule and calculate connected load, daily energy and DC-bus demand.

  • Separate AC and DC load schedules
  • Inverter-efficiency adjustment
  • Daily energy totals
  • Printable load summary
Open calculator

DC Cable Sizing Calculator

Check PV string voltage, inverter current limits, voltage drop and derated cable current capacity.

  • PV temperature-corrected voltage
  • String and array current checks
  • DC voltage-drop calculation
  • Grouping and temperature derating
Open calculator