STEMIS
🇧🇷 Brazilian Technology🏅 Patent BR10202501772

Solar Tracker Controller
TCU / NCU

Patented hardware with embedded TrackBoost AI for real-time optimal positioning. Supports irregular terrain, LoRaWAN for up to 500 units, and retrofit-ready for legacy controllers.

+3,000

units installed in the field

+14

active customers

+13%

energy gain on cloudy days

< 3 years

payback on tracker controller retrofit

Companies that trust us

Raízen
Brasil Solar
Helexia
IVI Energia
Bulbe
Atiaia
Origo
FARO Energy
Raízen
Brasil Solar
Helexia
IVI Energia
Bulbe
Atiaia
Origo
FARO Energy

Key Features

Embedded intelligence for every tracker.

Cutting-edge Brazilian technology to maximize generation and simplify operations at solar plants with tracking systems.

TrackBoost Embedded AI

AI-driven positioning based on real-time pyranometer data — outperforms the astronomical algorithm under cloudy conditions.

3D Backtracking

Configurable for irregular terrain, eliminating row-to-row shading in the early morning and late afternoon.

Flexible Power Supply

Self Powered (battery with 20h autonomy) and String Powered versions to suit different project topologies.

LoRaWAN Communication

Supports networks with up to 500 TCUs/NCUs per gateway, with 7 levels of wind protection and robust field communication.

Cloud Monitoring

Cloud platform for remote monitoring and real-time control of the entire tracker fleet at your plant.

Retrofit-Ready

Plug-and-play solution for replacing legacy tracker controllers, with commissioning, training, and after-sales support.

AI Technology

TrackBoost AI that thinks beyond the sun.

On cloudy days, diffuse radiation outpaces direct radiation — and the astronomical algorithm loses efficiency. TrackBoost uses embedded machine learning to compute the optimal angle in any atmospheric condition.

Inputs

Irradiance (pyranometer)
Wind Speed
Date and Time
Latitude & Longitude

Model

Embedded AI

Lightweight machine learning processed in real time on the TCU hardware.

Output

Optimal Angle
Energy Gain
ROI Improvement

+1.74%

average energy gain over the astronomical algorithm across the full test period

+13.68%

peak gain recorded in a single high-cloud-cover day

< 3 years

payback on tracker controller retrofit

Proven trust

Trusted by leading solar companies.

+3,000

units installed

+14

active customers

940+ MWp

commissioned in the field

94/100

customer satisfaction score

Our customers

Raízen PowerBrasilSolarHelexiaIVI EnergiaBulbeAtiaia RenováveisOrigo EnergiaFARO Energy

Talk to the team

Ready to optimize your plant?

Talk to our sales team to receive a personalized TCU/NCU proposal.