The world's reservoirs are quietly losing capacity.
We built the system that keeps the water flowing.
CHATTIGR develops non-blocking, energy-efficient sediment separation technology for reservoirs, rivers, and hydropower — engineered in Norway and grounded in multiphase-flow research.
Hydrodynamic separation · Digital twins · AIoT monitoring
The reservoirs we depend on are running out of room.
Sediment trapped behind dams is quietly shrinking the world's water storage — the same storage that supplies drinking water, irrigation, flood control, and hydropower. Around 5,000 large reservoirs across the EU and UK alone already hold over 1 billion m³ of accumulated sediment.
"Dredging and flushing alone are financially and technically unsustainable — new approaches to sediment management are needed in the energy transition."
— Industry association assessmentNon-blocking, energy-efficient, built to adapt.
We develop hydrodynamic separation technology that intercepts sediment inline — before it ever reaches critical infrastructure — without blocking the flow or requiring the reservoir to be drawn down. Our systems integrate smart monitoring, including IoT sensors, AI, and digital twins, so performance can be tracked, predicted, and improved over time.
Non-blocking separation
Sediment is intercepted in the flow itself — no check dams, no reservoir drawdown, no sudden downstream shock.
Digital Twin & AIoT
Real-time monitoring and predictive modelling keep performance visible and adaptive, season after season.
Water- and energy-conscious
Designed to minimize water loss compared with conventional flushing or dredging, and to run passively where possible.
Whether you operate a reservoir, engineer a solution, fund water infrastructure, or study sediment transport — we'd like to hear from you.
The principles.
Water first
Sediment comes out without draining the reservoir or cutting off the river's natural sediment supply downstream.
Physics before pumps
Our systems are built to use the water's own flow and potential energy, not to fight it with energy-intensive dredging or blocking structures.
Grounded in multiphase research
Every design decision is grounded in multiphase-flow research and validated.
Designing the living ecosystem
Utilities, hydropower operators, farmers, and the ecosystems that depend on a living river all sit at the same table when we design.
A dependable water supply starts upstream.
Hydropower plants enjoy lower maintenance costs and reliable storage for consistent power. Aquatic ecosystems are protected and strengthened. Our solutions fortify reservoirs, rivers, and surrounding communities against an increasingly unpredictable climate.
Sediment management that works with the river, not against it.
Reservoirs have relied on the same handful of methods for decades — and each comes with a serious trade-off.
Fill up quickly, carry a high failure risk, and interrupt the river's natural biological and sediment corridors.
Costly and energy-intensive, and, in some cases, lowering reservoir level.
Can lose enormous volumes of water and send a sudden, high-turbidity shock downstream.
Effective where geography allows, but expensive to build and highly site-specific.
Inline, non-blocking, and monitored in real time.
CHATTIGR's technology intercepts sediment inline — upstream of the reservoir or critical infrastructure — using hydrodynamic separation that doesn't block the flow or force a drawdown. Where site conditions allow, it runs on the water's own energy rather than constant pumping. Sensors, AI, and digital twins keep performance visible and let the system adapt as conditions change, from routine flow to storm-driven extremes.
Intercept upstream
Sediment is separated inline before it reaches the reservoir, turbine, or treatment plant — not after the damage is done.
Monitor continuously
IoT sensors and a digital twin track flow, turbidity, and system performance around the clock.
Adapt automatically
AI-assisted control adjusts operation to changing flow and sediment conditions, including storm events.
The silent threat facing reservoirs, rivers, and water systems.
Scientific rigor and vision.
CHATTIGR was founded in Norway in 2023, grown out of an intensive partnership with the University of Bergen. By 2050, the world risks losing roughly a quarter of its reservoir storage — a vital buffer for drinking water, irrigation, flood control, and carbon-free energy. We build systems that protect that buffer, with integrity, transparency, and environmental stewardship as a baseline, not an afterthought.
PhD (University of Bergen), Multiphase Systems and Physics. Research and industrial experience in dynamic multiphase flow, process technology, and fluid–electro-mechanical system architecture.
Background in climate policy and sustainable innovation. Connects research with operations and strategy, leading partnerships and execution to translate the technology into measurable real-world impact.
Emeritus Professor, University of Bergen. Expert in multiphase systems and process technology, with extensive experience in industrial and scientific innovation.
Good sediment management is a team effort.
CHATTIGR works alongside funders, academic institutions, and our manufacturing partners to bring this technology from research to the field.
Norway's state-owned innovation agency, supporting CHATTIGR's technology development.
Visit innovasjonnorge.noAn intensive partnership grounding our multiphase-flow and process-technology research, pioneering new visualization methods to make the invisible dynamics of our processes fully visible and actionable.
An intensive partnership decoding the intricate behaviors of multiphase flows and particles, developing cutting-edge flow visualization techniques to solve the complex fluid dynamics challenges at the heart of our technology.
Open to collaboration
Open to collaboration
We'd like to meet you
If you're working on the same problem, from a different angle
Tell us about the water system you're thinking about.
Whether you operate a reservoir, represent a government agency, lead research / engineering projects, or are evaluating an investment — we want to hear from you. Email us directly, or use the form below.
Public Sector
Let's discuss reservoir lifespan, water security, and regulatory or environmental planning.
public@ctgr.devInvestment
Learn about our technology, market, milestones, and our group structure.
invest@ctgr.devPartnerships
Whether you bring research, engineering capacity, or a pilot site — we'd like to talk.
partner@ctgr.devPrivacy Policy
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