Vaisala

21/08/2026

We've placed third among Finland's most reputable listed companies in this year's investor reputation study by Reputation and Trust Analytics.

The study reflects how private investors across Finland see the companies they choose to invest in. It's the same kind of trust our customers place in us when they act on our data, and the same trust our people earn every day.

Congratulations to KONE for taking first place, and to Wärtsilä Corporation for the second place. Thank you to everyone at Vaisala whose work continues to earn the trust of the people and communities who rely on us.

20/08/2026

We just confirmed our largest aviation weather project to date, a EUR 25 million order to modernize weather systems at 14 airports across Indonesia.

Vaisala signed the contract with the Indonesian Agency for Meteorology, Climatology and Geophysics, BMKG, in 2024. Now fully financed, the three-year rollout brings automated weather stations, radar and lidar-based wind shear alerts, and a volcanic ash tracking system built on Finnish Meteorological Institute technology.

Indonesia's aviation market is booming: more than 59 million domestic and 20 million international passengers in 2025, across a country of more than 17,000 islands and an estimated 80 active volcanoes.

“Indonesia invests in airport weather infrastructure that protects passengers and ground personnel in demanding tropical and volcanic conditions and builds capacity for a growing aviation market for decades to come,” says Anne Jalkala, who leads Weather, Energy and Environment at Vaisala.

Read more on our website: https://brnw.ch/21x54uV

18/08/2026

A single ageing transformer took Heathrow Airport offline for almost a day.

On the night of 20 March 2025, a fire at the North Hyde substation cancelled over 1,300 flights, stranded 290,000 passengers and cut power to 67,000 homes. Investigators traced the cause to moisture inside the bushings that had built up over the years.

The Heathrow case is a reminder of how much modern life depends on transformers simply staying online. OPT100 watches a different blind spot than the one that failed there: inside the main tank, where a fault usually announces itself early, if something is actually watching for it.

The standard way to read that signal, gas chromatography, runs on helium as a carrier gas. That same Strait of Hormuz disruption, already rattling chip and hospital supply chains for months, has hit helium supply too.

𝗝𝗣 𝗣𝗼𝘂𝘁𝘁𝘂, who leads Vaisala's power business, connects the two stories in a recent piece for Industry Insider: https://brnw.ch/21x514f

"𝘛𝘩𝘦 𝘩𝘦𝘭𝘪𝘶𝘮 𝘤𝘳𝘪𝘴𝘪𝘴 𝘪𝘴 𝘢 𝘴𝘭𝘰𝘸-𝘮𝘰𝘷𝘪𝘯𝘨 𝘷𝘦𝘳𝘴𝘪𝘰𝘯 𝘰𝘧 𝘵𝘩𝘦 𝘏𝘦𝘢𝘵𝘩𝘳𝘰𝘸 𝘱𝘳𝘰𝘣𝘭𝘦𝘮: 𝘢 𝘴𝘶𝘱𝘱𝘭𝘺 𝘤𝘩𝘢𝘪𝘯 𝘥𝘦𝘱𝘦𝘯𝘥𝘦𝘯𝘤𝘺, 𝘭𝘢𝘳𝘨𝘦𝘭𝘺 𝘪𝘯𝘷𝘪𝘴𝘪𝘣𝘭𝘦 𝘶𝘯𝘵𝘪𝘭 𝘪𝘵 𝘪𝘴𝘯'𝘵, 𝘴𝘪𝘵𝘵𝘪𝘯𝘨 𝘪𝘯𝘴𝘪𝘥𝘦 𝘵𝘩𝘦 𝘮𝘰𝘯𝘪𝘵𝘰𝘳𝘪𝘯𝘨 𝘢𝘳𝘤𝘩𝘪𝘵𝘦𝘤𝘵𝘶𝘳𝘦 𝘵𝘩𝘢𝘵 𝘤𝘳𝘪𝘵𝘪𝘤𝘢𝘭 𝘪𝘯𝘧𝘳𝘢𝘴𝘵𝘳𝘶𝘤𝘵𝘶𝘳𝘦 𝘥𝘦𝘱𝘦𝘯𝘥𝘴 𝘰𝘯. 𝘛𝘩𝘦 𝘤𝘳𝘪𝘴𝘪𝘴 𝘸𝘪𝘭𝘭 𝘦𝘢𝘴𝘦 𝘦𝘷𝘦𝘯𝘵𝘶𝘢𝘭𝘭𝘺. 𝘛𝘩𝘦 𝘮𝘰𝘳𝘦 𝘥𝘶𝘳𝘢𝘣𝘭𝘦 𝘲𝘶𝘦𝘴𝘵𝘪𝘰𝘯 𝘪𝘴 𝘸𝘩𝘦𝘵𝘩𝘦𝘳 𝘩𝘦𝘭𝘪𝘶𝘮-𝘥𝘦𝘱𝘦𝘯𝘥𝘦𝘯𝘵 𝘮𝘰𝘯𝘪𝘵𝘰𝘳𝘪𝘯𝘨 𝘴𝘵𝘪𝘭𝘭 𝘦𝘢𝘳𝘯𝘴 𝘪𝘵𝘴 𝘱𝘭𝘢𝘤𝘦 𝘪𝘯 𝘵𝘩𝘦 𝘢𝘳𝘤𝘩𝘪𝘵𝘦𝘤𝘵𝘶𝘳𝘦 𝘺𝘰𝘶 𝘣𝘶𝘪𝘭𝘥 𝘯𝘦𝘹𝘵."

There's already a way to read the same warning signs without any carrier gas. OPT100 has run on that principle for well over a decade in the field. Bushing inspections will always demand constant vigilance. Helium dependency, you can close with a single decision.

The war in Iran, and delays in the Strait of Hormuz, have impacted a wide variety of supply chains, but one of the less publicized consequences has been a significant reduction in the global availabil...

13/08/2026

When the right technology meets the right moment, an entire industry shifts.

We believe that moment has arrived. Vaisala is acquiring Atmo, the leading AI forecasting company TIME named one of 2024’s best inventions. Its technology now joins Vaisala Xweather.

Together, Vaisala and Atmo form the number 1 weather technology company in the world, from sensor to insight.

"For decades, world-class weather forecasting required national-scale infrastructure: supercomputers, vast observation networks, and hundreds of specialists. Only the largest nations could afford it," says Samuli Hänninen, EVP of Vaisala Xweather.

AI is changing that. Meteorological agencies, defense organizations, energy companies, insurers, and traders can now access forecasting once out of reach for anyone but the biggest economies.

Read Samuli’s full blog post: https://brnw.ch/21x4TX4

12/08/2026

When a hailstorm hits a city of 10 million people, the margin for error is zero.

The Milan district is one of Europe's most densely populated areas, and severe storms are arriving more often. ARPA Lombardia deployed two Vaisala X-band Weather Radar WRS400s, one near Milan and one near Brescia, to improve awareness of approaching storms. Positioned 100 km apart, the radars give forecasters precise data on storm path, precipitation type, and hail size close to the ground.

The next summer, when the next storm hit, warnings reached residents in time. The agency has since built RadarLOM, a public app delivering real-time alerts with five-minute resolution.

The full story: https://brnw.ch/21x4RXn

11/08/2026

BYD says it wants all-solid-state batteries in production EVs by 2027. Whether that timeline holds or not, the manufacturing requirement it points toward is already real, and most of the industry hasn't had to meet it yet.

Dew point requirements vary by chemistry and process step. Lithium-ion production commonly runs around -40°C, while solid-state's critical steps can call for -80°C. Vaisala launched the DMT153 earlier this year, built specifically to measure reliably at that range.

Getting a sensor to read that low is only half the challenge. The other half is what happens when it's exposed to moisture anyway, during installation, a routine service check, anything.

"Occasional exposure to ambient humidity is acceptable, the sensor tolerates condensation," says 𝗝𝘂𝗵𝗮𝗻𝗶 𝗟𝗲𝗵𝘁𝗼, who leads Vaisala's dew point instrument line. "The purge function is specifically designed to recover performance after events like that."

The sensors that will define this era won't be the ones that only read the lowest number. They'll be the ones that recover the fastest too.

06/08/2026

Pioneering at Vaisala means building what comes next, even before there is a clear roadmap.

Zarina Kozhurkina, Data Scientist in our Applied Digital Innovation team in Vantaa, works at the intersection of technology and business. She helps different units spot opportunities to use AI and other emerging technologies in smart, responsible, and value-creating ways.

That's ranged from improving supply chain demand forecasting with machine learning to leading hackathons where teams prototype solutions in a day.

For Zarina, pioneering means listening carefully to real needs, turning them into solutions that look beyond current demands, and building capabilities the business doesn't need yet, but will.

Read full story: https://brnw.ch/21x4IEH

05/08/2026

How do you protect solar farms from billion-dollar hailstorms?

We were thrilled to see Vaisala Xweather featured in BBC Science Focus this May, tackling one of renewable energy's most expensive challenges. In the United States, extreme hail events cause between $8 and $15 billion in damage annually, with individual solar farm insurance claims averaging $58 million.

In the article, Scott Mackaro explained how our machine learning model uses our global lightning detection network to predict severe hail threats. Unlike traditional radar that updates every five minutes, our lightning network captures data every 12 seconds. "You can think about it like seeing the heartbeat of the storm," Scott told BBC Science Focus.

Since publication, we completed validation of our hail threat technology using data from the first half of 2026. The results show we detected 99.2 percent of severe hail events with an average lead time of 53 minutes on a 30-mile radius. This early warning gives solar farm operators critical time to stow their panels before hail strikes.

With almost 70% of the US solar sites located within 30 miles of severe hail activity in 2026, those extra minutes make all the difference.

04/08/2026

A cold glass of refreshments sweats on a summer table. Nobody thinks twice about it. Put that same physics next to hardware worth tens of millions of euros per square meter, and it stops being harmless.

Liquid-cooled data centers deliver coolant cold enough to pull heat straight off AI processors, through piping that sits inside an air-conditioned space. Drop that pipe's surface below the room's dew point, and water forms on it, same as the glass, except here it's dripping toward some of the most expensive electronics on the planet.

The standard practice is to keep coolant temperature at least 2°C above the measured dew point, continuously. That margin only works if the dew point behind it is measured accurately enough to trust.

A sweating glass is just warm weather doing its thing. A sweating pipe in a data center can carry a costly price tag. That's why measuring dew point and other critical parameters has to be precise and continuous, not occasionally 'close enough'. It's the kind of measurement precision Vaisala has been mastering since long before anyone needed it for a server rack.

29/07/2026

Most weather forecasts only describe a handful of points. The weather itself happens everywhere in between.

For years, ground stations have delivered precise data, but only at their exact location. Ten kilometers away, that data runs out.

At Vaisala Xweather, a next-generation deep learning model closes that gap. It blends sparse ground truth with radar, satellite imagery, and local NWP data to build a dense forecast for every point on the map, even where no sensor exists.

Think of it as a virtual sensor, everywhere you need one. Precipitation forecasting with this approach is already live, and it's outperforming high-resolution NWP forecasts. The same approach is now being tested for temperature, wind speed, and more.

For weather-sensitive businesses, that means no blind spots between stations, and real confidence in the conditions that affect safety, uptime, and logistics.

Yaniel Cabrera breaks down how it works: https://brnw.ch/21x4w7X