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Beamline Accelerator • OCT 6 • 6 min read
Beyond Turbines and Panels:
The Digital Tools Powering the Energy Transition
The clean energy transition isn’t just about deploying solar panels and wind turbines. It’s about rethinking how we discover resources, how engineers work, and how we renovate the places we live. Three startups, NAVE, Beholder, and Renokratt, are tackling these overlooked but critical challenges.

They’re all part of the Beamline, Sparkup, and BIA Energy Batch - and each one is building digital tools that cut waste, remove bottlenecks, and open up new possibilities for the future of energy.


Cathy-Liis Põlluveer, CEO of NAVE @ Latitude59 pitching stage
NAVE


Engineering is at the heart of the energy transition, but engineers spend up to 80% of their time on repetitive tasks instead of real problem-solving.
That’s where NAVE comes in. Their B2B SaaS platform acts as a co-pilot for process engineers, automating daily calculations, documentation, and reporting so they can work up to 10x faster.

Unlike traditional simulation tools, NAVE supports the entire engineering cycle, from raw data to final proposals. By freeing engineers from manual tasks, like clicking through Excel sheets, NAVE helps them work smarter and faster on projects that drive real climate impact.

Or, as founder Cathy-Liis Põlluveer puts it:
“The energy transition is one of the biggest engineering challenges of our time. Engineers should be solving problems, not clicking through Excel sheets.”

NAVE supports the full lifecycle: from raw input data to final proposals. Whether it’s a quick sizing task or a complex system design, engineers should be able to move fast and stay in flow.

The NAVE team want to point out mentors who have helped them tremendously:
  • Hedi Mardisoo – CEO & Co-founder of Cachet. She guided us from idea to action, helping shape our strategic questions and go-to-market plan;
  • Madis Lehtmets – Managing Director at EstVCA, ex-Co-founder & CEO of Remato. His SaaS expertise has sharpened our understanding of acquisition strategies and financial projections;
  • Igor Krupenski – Senior Lecturer at TalTech, Founder of EnergyMentor, HeatConsult & Enerhack. He’s helped validate our technical foundation and ensured we tackle the right problems;
  • Pille-Riin Meerits – Accelerator mentor at SPARKUP. She patiently answers all our rookie questions with warmth and clarity.




Beholder's example of 3D inversion

Beholder team: Andrii Sevryukov, co-founder & CEO (on the right) & Daniil Lubkin, co-founder & COO (on the left), with the Crown Prince of Luxembourg, Prince Guillaume
Beholder

The energy transition needs minerals, lots of them. Beholder is tackling the looming shortage of green tech minerals and energy resources with a unique approach: combining satellite imagery and state-of-the-art neural networks to discover new deposits without environmental harm.

Their AI-powered system processes vast amounts of geological and satellite data, offering predictions up to 10 times more efficient than traditional exploration. From geothermal prospecting to mineral discovery, Beholder’s technology lowers costs and environmental risks, helping secure the resources needed for a clean energy future.

As they put it, the biggest opportunities for startups lie in innovating in conservative industries and solving practical problems. Beholder is doing just that, reshaping how resource exploration can power the transition. They are much more technologically advanced than their competitors, as their approach allows them to absorb many more data modalities and train our AI accordingly.

The Beholder team wants to thank Indrek Kelder and Jana Budkovskaja from Beamline, who have helped them throughout the program with strategic advice, fundraising, investor relationships and Estonian law.

Team Renokratt
Renokratt

Buildings are Europe’s sleeping giant in the energy equation: they consume massive amounts of energy, but renovation planning remains slow and fragmented. Renokratt is changing that with a data-driven platform that simplifies apartment building renovation planning - making it faster, cheaper, and easier for Technical Consultants.

In Estonia alone, 14,000 buildings must be renovated by 2050. Renokratt’s platform centralizes scattered data and automates documentation, saving consultants up to 160 hours per project. Beyond time savings, it makes it easier to convince apartment owners by providing clear visualization tools.

Buildings represent 53% of energy consumption in Estonia.
By removing the planning bottleneck, Renokratt unlocks enormous potential for CO₂ reduction and energy savings up to 7 TWh/year in Estonia. Their vision: make large-scale renovation achievable, so Europe can meet its climate goals.

Renokratt team expresses huge thanks to Ergo Pikas (PhD, TalTech) and Martin Talts (CEO of KMT Prefab), who have been instrumental in connecting them with industry expertise and validating the approach. Their deep knowledge of construction processes and renovation challenges has helped Renokratt refine the value proposition for Technical Consultants.
Building the invisible infrastructure of the energy transition

NAVE, Beholder, and Renokratt are working on very different problems, mineral discovery, engineering efficiency, and building renovation, but they share a common thread: using digital tools to fix overlooked bottlenecks in the clean energy transition.
Whether it’s uncovering resources without digging, helping engineers work smarter, or unlocking renovation at scale, these startups prove that progress doesn’t just come from new hardware. It comes from rethinking the systems behind it.
The future of clean energy won’t just be built with turbines and panels. It will be built with smarter tools that make the entire system work better - one digital innovation at a time.

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