Hybrid microgrid sizing SaaS with full financial analysis — CAPEX, IRR, NPV and payback in minutes.
Technical and financial design
Hybrid microgrid sizing
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NewsBNDES approves STEMIS as a supplier in the CFI System · Brazilian EMS for the national storage auctionLearn more
Deeptech startup focused on energy systems
From design to operation,complete technology.
Patented hardware, intelligent software and AI: solutions to maximize generation and reduce costs at every stage of your solar asset.
2.5 GWp
in installed capacity
700+
projects delivered across C&I, agribusiness and utility scale
CFI System · October 2026
BNDES approves STEMIS as a supplier in the CFI System.
A decisive step toward bringing EMS with local content to projects in Brazil's national storage auction on December 2.
About STEMIS
Brazilian deeptech for the energy sector.
A multidisciplinary team with 20+ professionals, including PhDs, master's graduates, engineers and developers, with expertise in hardware, software and AI development, plus field experience.
STEMIS combines scientific rigor, engineering and AI to transform energy asset operations.
+500 MW
of projects sized
+500 MWp
under monitoring
+940 MWp
commissioned in solar projects
+1 GW
of projects inspected
Mission
To produce intelligent, innovative and scalable technological solutions within a high-performance organization that values scientific rigor, aiming to generate the highest level of added value for our customers, partners and society.
Vision
To become a global reference in technology and innovation in the energy sector.
Our portfolio
EPC / Integrator and Distributor
Embedded Energy Management System for intelligent dispatch and real-time demand control of hybrid microgrids.
Dispatch and peak shaving
EMS (Energy Management System)
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Real-time asset supervision and management with multi-site dashboards, alarms and integrated maintenance module.
SCADA + CMMS
Hybrid microgrid monitoring
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Patented controller with TrackBoost AI for real-time optimal positioning, retrofit-ready and LoRaWAN for up to 500 units.
Solar Tracker Controller (TCU/NCU)
Tracker Controller
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O&M
Drone-based thermographic inspection platform with proprietary AI models for automated fault detection in solar plants.
Automated fault detection
AI thermographic inspection
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Patented robot for utility-scale dry and wet PV module cleaning, with mobile app and automatic end-of-row detection.
Autonomous robot, utility-scale
Automated module cleaning
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Web platform for real-time monitoring, SCADA supervision, maintenance management, and AI analytics for large-scale solar plants.
Utility Scale SCADA · CMMS · AI
STEMIS SCADA
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Our partners
Who uses STEMIS
Real testimonials, concrete results.
Grid Design
“It has been a very good experience, especially because of how quickly we can size these systems. You can choose all the equipment you want to use and, most importantly, combine different solutions.”
Arthur Turra
Solutions Engineer · GOODWE
ZenVision
“Automating our flights and thermal reports with the ZenVision platform was a turning point. What used to take days and hours per MWp is now handled in a fraction of the time, with extremely high precision. Productivity and agility that generate real value for our business.”
Dallas Ferreira
Manager · Exata Serviços e Calibrações
ZenVision
“I have been running thermographic inspections on distributed-generation solar plants for two years. At first I flew the drone manually, hunting for thermal variations in real time. That method was slow and meant flying over the same module several times to tell a real defect from a mere reflection — with the risk of letting faults slip through. With STEMIS's software and automated flight planning, that worry is gone. Fieldwork became faster and safer against human error. The AI analysis is extremely quick and accurate, which makes the final report far more professional and organised. The impact on service quality was immediate, and it raised my clients' satisfaction significantly.”
Roberto Coutinho
Engineering Lead · Roche Engenharia
ZenVision
“The report template went down extremely well, above all with the end client. Very clear, very easy to follow. The client was even wary at first, having run into trouble with another supplier on exactly that point. With STEMIS we had very few problems with the report and its approval. As for support and resolving the issues we raised, 100 percent. We will definitely be continuing this partnership.”
Robson Veiga
Engineering Lead · Kadima
TCR-W1
“We are very satisfied with all the work. The equipment is great, robust, easy to operate and very efficient.”
Luebert Gomes
O&M Technician · Véritas Energia Solar
TCR-W1
“We significantly reduced labor and water consumption, achieving greater efficiency and a perfect clean. After testing other robots with poor results, the TCR-W1 exceeded expectations and comes with excellent technical support.”
Samuel Felipe
Field Lead · AEVO Energia
TCR-W1
“Excellent equipment, it's a pleasure to work with it. No more battery issues, and the modules are all standardized after cleaning. The robot operates fully autonomously, stopping on its own at the end of each row.”
Gustavo Guandalin
Founder · GTG Energia
In focus
Stories from our partners.
Experiences and partnerships shared by the people building projects with STEMIS.
Grid Design
The advantages of an equipment-agnostic platform
Arthur Turra of GOODWE talks about faster system sizing and the freedom to combine equipment in Grid Design.
Blog
Solar engineering in practice, straight from our blog.
Let's talk
Ready to bring the STEMIS platform into your project?
Tell our team what you need — sizing, tracker retrofit, EMS, monitoring or inspection. We reply within one business day.