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Blue futuristic product from Soletair Power
Soletair Power Building CO2 Capture Power 2 X unit at Dubai
A box shaped device
HVAC CO2 Capture Integration
A container shaped device
Prime Minister Sanna Marin at Soletair Power
A bos shaped device
Soletair Power Indoor CO2 Filtering Air Purifier Unit in a demo office meeting room
A rendered output
Soletair Power Outdoor Carbon Dioxide Capture Unit at ZBT Germany
High CO2
High CO2
White finnish man
Outdoor Carbon Dioxide Capture Unit
Outdoor Carbon Dioxide Capture Unit
Process illustration
Soletair Power Building Air Capture process illutration PNG
Process illustration
Process illustration
Process illustration
coffee machine
four people at an exhibition
Ministers visiting Soletair Power
A device that captures CO2 from the air at Expo Dubai
Sci Fi product at Expo 2020
A green office room
Logo of Soletair Power
Logo of Soletair Power
Logo of Soletair Power
Logo of Soletair Power

Our story

Soletair Power’s technology is the pioneer to the world’s first economically profitable P2X fuel production, produced from CO2 captured directly from the air. Our compact, sleek and modular-designed air-capture system efficiently captures CO2 from the indoor air and increases human cognitive functions. At the office, home or school — we spend 90% of our time indoors. While breathing in a confined space, the inhaled air turns into carbon dioxide. This accumulated high concentration of CO2 has been proven to make people feel dizzy, tired, and sleepy. The reduced cognitive function means lower learning results and reduced work productivity. Soletair Power’s technology captures the indoor CO2 from the ventilation system in the building. The captured CO2 can be turned into synthetic renewable Power-2-X fuels or can be stored or supplied for other industrial purposes. With our carbon-capture system installed, employees will enjoy increased analytical & decision-making ability, productivity, and performance; at the same time, the building can contribute to reducing the global CO2 emissions if the captured carbon is fully stored or converted using renewable energy.

About Soletair Power

Soletair Power, a Finnish startup founded in 2016, contributes to global negative emissions by developing modular Direct Air Capture technology that can capture carbon dioxide utilizing building ventilation systems. Our modular solution operates with a plug-and-play approach, enabling any company to install and use Direct Air Capture.


The integration of DAC with buildings offsets the CO2 emissions and supports employee wellbeing by preventing productivity from dropping by 20%. The captured carbon can be reused as a non-fossil-based resource in a wide array of applications, effectively rewinding the impact of CO2.


In 2021, Wärtsilä, together with Soletair Power and Q-Power, demonstrated the Power-to-X unit at the Expo 2020 Dubai, which can produce synthetic methane from captured CO2 from buildings.

In 100 words

Soletair Power contributes to global negative emissions by capturing pure CO2 from the air. It is currently the only company in the world capturing carbon from building ventilation, which can offset the building’s emissions, enhance wellbeing, and increase cognitive performance. Soletair Power’s modular solution operates with a plug-and-play approach, enabling any company to install and use Direct Air Capture. The carbon the company captures can be reused as a non-fossil-based resource in a wide array of applications, effectively reversing the impact of CO2.

Are there any case studies that you can provide?

We have provided a demonstration unit for Wärtsilä at the Dubai Expo 2020, which has been deployed at the event’s Finnish Pavilion. This single unit, which is approximately five meters long, two meters high, and one meter wide, has Power-to-X incorporated into it.

At one end of the unit sits the CO2 capturing device, while the synthesis is installed at the other end. The controls and electrolyzer are in the middle.

To illustrate how we can use this unit on a large scale, we’ll power an espresso machine with the synthetic natural gas produced by our DAC unit. While the Dubai unit has a 1kW flame, the units we can install in buildings are 30 times bigger.

More about the Dubai Expo 2020 demonstration unit:

We are also working with Germany’s Hydrogen and Fuel Cell Center ZBT, providing the facility with a CO2 capture unit that produces up to 21 kg/day of >98% pure CO2, compressed to above 10 bar.

Value proposition

For corporations, commercial building owners & public entities, who want to contribute to negating their emissions by capturing CO2 from the atmosphere, Soletair Power is a carbon capture system provider that lets customers capture CO2 right from their buildings or commercial properties, utilize that in plenty of applications or store that permanently, e.g., inside concrete blocks, by making CO2-capturing plants smaller, more efficient and more affordable.
Instead of selling emission offsets, we enable our customers to have their own visible carbon-capture plants.

Latest update in 100 words

Buildings are related to 38% of global CO2 emissions. Soletair Power can turn buildings into carbon sinks by capturing CO2 from the air passing through buildings’ ventilation ducts. Integration of direct air capture lowers HVAC system runtime while keeping air quality at the same level as outdoors, resulting in a significant decrease in energy consumption. CO2 is to be utilized in concrete production to make negative emissions possible. Direct air capture and building infrastructure will benefit from each other and lower actual energy utilization. Soletair Power has delivered four commercial systems, and the fifth is in production.

In 400 characters

Soletair Power contributes to global negative emissions by utilizing direct air capture technology for capturing CO2 from the air. Our modular solutions can easily be retrofitted with buildings’ HVAC systems. The integration offsets CO2 emissions and improves employee productivity by 20%. Captured carbon can be reused as a non-fossil-based resource in a wide array of applications.

Our story (1000 characters)

It was back in 2016. Our founder, Mr. Ari Piispanen saw in a local newspaper that local university professors went to Germany to see how CO2 was captured from flue gases in a factory. Ari called the professors, “Hey, why are you capturing CO2 from flue gases when you could do it directly from the air?” The professor replied, “Well, there’s not really a competitively priced equipment for that,” and Mr. Piispanen said, “What if I could deliver it to you!” and that’s what he did. In 2017, we had two pilots. Then with co-founder Dr. Pasi Vainikka, he found out that, the capture cost is hundreds of euros/ton when the sales price is tens of euros/ton, not kind of profitable. Mr. Piispanen had another company making indoor air purifiers. He combined these two ideas – capturing CO2 from building ventilation, and increasing peoples’ performance in buildings as CO2 is proven to lower our cognitive function. We planned to sell this as a service at $1-2/day/person and that was the starting point.

What role could Soletair Power play in the drive towards net-zero?

Around 40% of global CO2 emissions come from buildings. By transforming buildings into carbon sinks, net-zero targets can become achievable. Only the combination of DAC technologies and renewable energy sources will enable businesses to become carbon neutral or negative. In addition, transforming CO2 into a resource decreases the need for other carbon-intensive or non-renewable raw materials such as pesticides and fossil fuels.


  • Turning buildings into carbon sinks.
  • Capturing carbon, improving well-being.
  • Fuel from thin air.
  • World’s first business model that can really reduce CO2 capture cost.
  • Carbon Ghostbusters

Color codes

Hex Color Codes for the Logo of Soletair Power is
Deep Pale Blue #041E42 and
Pale Mint Green #50A684

Soletair Power Logo Color is #041E42 and #50A684
PMS Color Codes for the Logo of Soletair Power is
PANTONE 282 C and
Deep Blue #001937
Mint Green #00D4A2


Visiting address

Visiting address of Soletair Power is: Soletair Power, Tuotantokatu 2 53850, Lappeenranta, Finland.
Phone number of Soletair Power is: +358405445646
Website address of Soletair Power is: www.soletairpower.fi

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