Blog
News and articles
What we develop, build and test – and why stormwater retention, infrastructure and digital resilience belong together.
Updated:
ZANNI GROUP – A Commitment to Germany
New address, clear direction: ZANNI GROUP has moved to zanni.de – with JUMBO BLOCK and the Engineering Suite at the heart of its work.
Concrete Against Heavy Rain. Software for Emergencies.
One page now shows what JUMBO BLOCK is and can do: jumboblock.org/info – the module, the Engineering Suite, KRITIS tools and the live dashboard.
JUMBO BLOCK Rescue – When Digital Resilience Becomes Practical
A bootable MX Linux rescue and work system with 35 tools for data recovery, diagnostics and security – plus the complete Engineering Suite.
We Produce, Assemble and Test
Frames, beams and plates wherever you look: JUMBO BLOCK modules are produced, assembled and tested before they go on their way.
JUMBO BLOCK Exhibition, 9–11 September 2026
From 9 to 11 September 2026, an above-ground section of a JUMBO BLOCK installation shows the true scale of the system at BBW Weißensee.
While Most Are Still Talking About Heat Islands and Heavy Rain …
… there is already a tangible answer in Soest: the Soester Anzeiger reports on JUMBO BLOCK as underground storage and cooling infrastructure.
The Range of Tools on JUMBO BLOCK ORG
From Hydro, Plan and Budget to Tender, Tables, Writer, Vault and the KRITIS information system: an overview of all tools on jumboblock.org.
Healthy Soil Stores Water Like a Sponge
Healthy soil stores water like a sponge and releases it via fine capillaries. JUMBO BLOCK uses the same principle underground.
Interview: From Sensor to Blockchain – JUMBO BLOCK Relies on IOTA
Marcel Knobloch of kryptorevolution.de talks to Andreas Zanni about IOTA, digital resilience, KRITIS and trustworthy infrastructure.
Digital Resilience Starts Long Before an Emergency
Critical infrastructure also consists of people who must keep working when IT fails. Three new tools help: Dashboard, Writer and Chat Direct.
What Does Trustworthy Infrastructure Mean in 2026?
Trust starts with verified data: a tour of the JUMBO BLOCK Dashboard – start, admin, setup and control centre – and why evidence beats claims.
Supporting Municipalities with Heavy Rain, Heat and Water Storage
Municipalities need practical tools, not bureaucratic hurdles. The JUMBO BLOCK modules, Engineering Suite and Dashboard are ready for use.
JUMBO BLOCK MUSIC Now Available Free as a Website Widget
The JUMBO BLOCK MUSIC Library player is now available free of charge as a website widget – a few lines of HTML, no installation, always up to date.
The Air Conditioning Lies Beneath the Street
How smart concrete modules can protect our cities from heat: JUMBO BLOCK turns streets into passive, weather-robust coolers – even when the store is dry.
JUMBO BLOCK Platform Now in Operation
The JUMBO BLOCK platform is fully operational: planners work in Hydro, Plan and Budget, and we handle the in-depth Static and Temp evaluation.
JUMBO BLOCK for Water, Climate and Digital Infrastructure
An integrated overall system: the protected JUMBO BLOCK module, the Engineering Suite with one shared data model, the Dashboard and CHAT DIRECT.
The New JUMBO BLOCK Engineering Suite 8.0.0
Engineering Suite 8.0.0 is live at jumboblock.org: Hydro, Plan, Budget and Static for water management, infrastructure and climate-proof structures.
The End of Infinity?
Can infinity be a physical state at all? The Universal Capping Principle (UAP) proposes finite physical limit states instead of mathematical infinities.
Production Phase
Development never stops: while the first projects are being prepared, JUMBO BLOCK moves into the next production phase.
Engineering Competence, Not Marketing Promises
Infrastructure does not need miracles. It needs responsibility – people who calculate loads, plan reserves and question the numbers.
The Final Version of Our JUMBO BLOCK Engineering Suite Is Here
Hydro, Plan and Budget: assess rainfall events, pre-plan installations and estimate quantities and costs – free of charge, in German and English.
Why We Need to Rethink Stormwater Retention
Central basins or decentralised systems, concrete or plastic? Either-or thinking no longer works. Modern stormwater strategies need the right combination.
Sponge City 2.0
Bring water below the surface quickly, locally and in a controlled way – before it becomes dangerous above ground. That is Sponge City 2.0.
Stormwater Retention with a 40-Block Installation and 556 m³
Total budget €213,467.42 for 556 m³ – around €384 per m³ including modules, all plates and SABA sealing, ex works. Here is how that compares.
A “Sleep-Well Product”
Some products want attention. Others you never want to hear about again after installation. We call that a “sleep-well product”.
True Sponge City 2.0
Why we finally have to go below the surface: JUMBO BLOCK complements classic sponge-city measures with large-volume storage beneath streets.
Why Preparedness Pays Off for “Non-KRITIS” Facilities Too
Even if your facility is not formally critical infrastructure, the KRITIS and NIS-2 standards are an excellent compass for your own resilience.
Stormwater Retention and the JUMBO BLOCK Dashboard
JUMBO BLOCK retention systems come with access to the self-hosted JUMBO BLOCK Dashboard: LoRaWAN sensors, local data, IOTA verification.
Monitoring Critical Infrastructure Securely – With Full Data Sovereignty
Real-time monitoring, fully self-hosted, open source and verified by IOTA: with the JUMBO BLOCK Dashboard, your data stays with you.
Upgrade: JUMBO BLOCK Dashboard v5.1.0
Dashboard v5.1.0 “Leipzig”: not more data, but more clarity – the control centre focuses on what matters in an emergency.
New Exhibitions Coming to North Rhine-Westphalia
After Thuringia, two more JUMBO BLOCK exhibition sites will soon follow in North Rhine-Westphalia.
First JUMBO BLOCK Projects Enter Implementation
The first JUMBO BLOCK projects protecting critical infrastructure and sealed surfaces from heavy rain are now being implemented.
Plastic Crates or Heavy-Duty Concrete?
Infiltration and retention systems compared in practice: load capacity, scalability, service life and maintenance of plastic crates versus JUMBO BLOCK.
Critical Infrastructure Is More Than IT Security
Real resilience starts with the hardware: JUMBO BLOCK protects critical water infrastructure physically and digitally.
Chinese-German Cooperation
A Chinese-German headquarters for ecologically oriented development and sustainable construction in Sichuan – a logical step for JUMBO BLOCK.
Smart Investments Prevent Tomorrow’s Insurance Claims
Infrastructure investment today prevents tomorrow’s insurance claims. JUMBO BLOCK stabilises the water balance – especially in agriculture.
Concrete Alone Is No Longer Enough
With NIS-2 and the German KRITIS umbrella act, resilience becomes a board-level matter – including personal liability.
Rethinking Retention Infrastructure
An end to short-term fixes: why underground retention must be built for decades of operation – physically robust and digitally monitored.
From Understanding to Operation
The architecture behind JUMBO BLOCK: three domains, three functions, one system – understand on jumboblock.de, plan on .org, operate on .net.
From Fragmented Planning to Integrated Infrastructure
Hydro, Plan, Budget and the Dashboard connect planning and operation in one digital workflow – from the first idea to verifiable operation.
From Water Storage to Resilient Infrastructure
Sustainable water management rethought: JUMBO BLOCK turns urban areas into multifunctional infrastructure layers – physical and digital.
Structural Design and Load-Bearing Behaviour of the JUMBO BLOCK System
JUMBO BLOCK acts as a modular reinforced-concrete assembly: loads are distributed over an area and transferred safely – designed to EN 1990–1997.
Physical Infrastructure Meets Digital Governance
The JUMBO BLOCK system combines physical resilience against heavy rain with digital transparency, traceable operator decisions and audit-ready records.
The JUMBO BLOCK Engineering Tool Suite
From planning to monitoring: JUMBO BLOCK Plan and Hydro complement the dashboard and support the full life cycle of stormwater infrastructure.
When Infrastructure Speaks
Why the JUMBO BLOCK system makes events traceable: infrastructure snapshots at fixed intervals, stored in a digital audit chain – like a flight recorder.
From Infrastructure Risk to Verifiable Resilience
How JUMBO BLOCK helps cities close the liability gap of modern infrastructure rules: retention below ground, monitoring and verifiable records.
KRITIS and NIS-2 Need Integrity, Not UI Gimmicks
Dashboard 3.0.0 “Erfurt” makes governance visible: chained audit logs, multi-hash architecture and external anchoring in the IOTA network.
Authorities Seminar in Oberhausen – Innovations for Municipal Infrastructure
On 19 February 2026, an interdisciplinary seminar for authorities in Oberhausen showed where water and infrastructure technology is heading.
Sustainability Meets Technical Innovation!
SABA and JUMBO BLOCK: how SABA sealing and coating solutions prepare the modular water storage system for the future – in a 69-second video.
Short Facts – No Fairy Tales
The JUMBO BLOCK module in brief: 13.9 m³ net storage, heavy-duty to LM1, walk-in, freely scalable, low-maintenance and digitally monitored.