Tracking Control Intelligence

TCI is the control intelligence that delivers maximized energy harvesting of tracker-mounted photovoltaic and solar-thermal installations.


  • Extremely high pointing accuracy (0.01°)
  • Auto-aligning and self-configuring: each tracker autonomously sets the parameters that maximize energy harvesting on a real time basis also in the event of ground movements
  • Energy saving standby option (sleep mode) in cloudy sky conditions
  • Low-power consuming

Delivering outperforming solar trackers’ control

TCI implements an hybrid tracking strategy suitable both for a comprehensive plant management system through the CCU (Central Control Unit), as well as for the control of single- trackers, by means of TCU (Tracker Control Unit).

From single-axis and dual-axis tracking systems, to high-concentration photovoltaic and solar thermal systems, both control boards are designed to deliver high tracking accuracy and low power consumption.

TCI is compatible with any tracking system.

Intelligence designed around high precision solar tracking needs

Performances and profitability of tracker-mounted photovoltaic and solar- thermal installations heavily depend on how accurately receiving units are pointed to the sun, hence the tracking control intelligence is crucial to drive maximized energy and profit yield.
As certified by independent third parties, TCI exceeds state-of-the-art systems delivering seamless, high-precision control intelligence.


  • Single axis PV
  • Dual-axis PV
  • Concentration PV (CPV)
  • High-concentration PV (HCPV)
  • Solar-thermal
  • Concentration solar-thermal

TCI has been tested by

Enel Ingegneria & Ricerca

TCI is a sunto proprietary technology.


CCU specifications

Software functionalities
  • PV and CPV power plant management
  • Wind Protection Automatic System (available only with a weather station): active if wind is stronger than a settable threshold value
Communication interfacesPower Line Communication (PLC) and RS-485
Power supplyn24 V DC ± 10%
Power consumption1 W
Operating temperature range-20 °C ÷ 85 °C
Dimensions (L x W x H)170 mm x 100 mm x 37 mm

TCU specifications

Tracking strategyHybrid (astronomical algorithms based on GPS data and on solar pointing sensor) with a procedure for maximizing the energy produced
Software functionalities
  • Manual control mode
  • Start-up algorithm
  • Full tracking algorithm
  • Communication protocol
Communication interfacePower Line Communication (PLC)
Power supply24 V DC ± 10%
Peak Current15 A
Operating Peak Current10 A
Power consumptionn(motors power consumption not included)1 W
Motors typeDC 24 V
CablesCustomizable upon request
Weight1 kg
Dimensions (L x W x H)170 mm x 120 mm x 37 mm
Operating temperature range-30 °C ÷ 85°C
International ProtectionIP 65


DescriptionItem CodeQuantity
Dual-axis Tracking Control IntelligenceTCI2-2AX
Single-axis Tracking Control IntelligenceTCI2-1AX


DescriptionItem CodeQuantity
Box for TCI with glandsTCI2-BOX


DescriptionItem CodeQuantity
Waterproof Tracker DC Motor with 1:576 reduction rateWTMC-576
Customizable dual-axis High Precision TrackingHPT1-2AX
Customizable single-axis High Precision TrackingHPT1-1AX
Solar Tracking Sensor with 4-channel analogue output. Supplied with 3 m cable and User Guide.STS2-RSM


DescriptionItem CodeQuantity
Field tracker control technical assistanceHPT1-FTC
Remote tracker control technical assistanceHPT1-RTC