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THE CARBON GHOSTBUSTERS

Our plug-and-play systems can operate in a low-heat environment inside buildings or on office premises. Millions of tons of CO2 from the city air can be captured by our HVAC retrofittable carbon capture machines.

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If the world wants to avoid catastrophic climate change, switching to carbon neutrality is not enough. IPCC has warned that limiting global warming to 1.5°C by 2100 will require technologies such as direct air capture for large-scale deployment of carbon dioxide removal measures.

About Soletair Power


Founded in 2016, Soletair Power is a Finnish technology company offering building-integrated carbon capture solutions. Direct Air Capture technology developed by Soletair Power is scalable, optimized for urban operation, and requires minimal additional infrastructure. Through this integration, buildings’ ventilation rate can be lowered, thereby reducing energy costs. Each building is capable of capturing 20 tons of CO2 per unit per year, and capacity can be increased by adding more modules. One building can have, for example, 20 modules. When the building uses renewables, 100% carbon sink buildings can be made.

In 2021, Soletair Power demonstrated world’s first compact Power-to-X (fuel from thin air) methane production module at Expo 2020 Dubai. By 2024, Soletair Power has delivered seven commercial cases in Germany, Denmark, UAE, and Finland.

Soletair Power Process Building Carbon Capture

Our Story

We turn buildings into carbon sinks.


Soletair Power addresses the issue of CO2 emissions originating from buildings, responsible for nearly 40% of global CO2 emissions. Existing direct air capture solutions face challenges in cost and efficiency. Soletair Power’s breakthrough lies in achieving net-zero emissions by integrating direct air capture with building ventilation systems, providing an economically viable solution for capturing CO2, thereby generating negative emissions, reducing energy consumption, and improving indoor environments.

Soletair Power’s patented onsite HVAC integrated CO2 capture technology empowers commercial property owners to reduce their buildings’ overall emissions while achieving significant cost savings. The technology captures CO2 from the air by retrofitting ventilation systems with CO2-binding materials. The modular carbon capture systems operate with a plug-and-play approach, enabling property owners to rapidly and easily install the system.

One HVAC-integrated DAC unit (in buildings with ventilation of 3 m3/s) can capture up to 20 tons of CO2 per year, equivalent to 3 hectares of Nordic forest aged 30 years. If building ventilation runtime is controlled by CO2 levels, the system will also help lower the costs of HVAC energy use.

Rather than relying solely on CO2 emission offset sales, Soletair Power benefits from stable building temperatures for efficient and weatherproof onsite CO2 capture. The technology operates below 100°C temperature, can capture up to 99.98% pure CO2, and leverages existing heat, providing a remarkable edge over other similar technologies.

The easy deployment of our modular carbon capture technology can significantly impact the carbon market when scaled. This benefits building owners, making it a financially feasible solution that can contribute positively to the planet.

We’ve showcased our ambient air CO2 capture and fuel production using Power-to-X technology at Expo 2020 Dubai. Successful pilot initiatives have been undertaken, including a containerized outdoor carbon dioxide capture unit at ZBT in Germany with a daily capture capacity of 21 kg CO2. Another unit deployed at the Wärtsilä Sustainable Technology Hub in Vaasa, Finland, has a daily capture capacity of 50 kg.

In 2024, our client in Finland deployed our HVAC-Integrated CO2 Capture Unit at a factory in Vantaa where the captured CO2 is highly pure and is being converted into a valuable resource. Another Building Integrated Carbon Capture unit is being deployed at Aarhus, Denmark. Each of these solutions has the potential to capture close to ~20 tonnes of CO2 per year per ventilation unit.

Every day, we try to innovate ways to enhance our technology, our way of work and our spectrum of imagination. Our values live through the entrepreneurial spirit of our diverse and inclusive network.

What we do

We develop modular CO2 capture solutions retrofittable with ventilation systems. The technology empowers commercial property owners to capture CO2 onsite, decrease the building’s HVAC energy consumption, and lower carbon footprint. Captured CO2 can be utilized or permanently stored, resulting in negative emissions.

Mission

To turn buildings into carbon sinks by integrating DAC with HVAC, decrease energy costs and emissions, and reach an annual capture capacity of 130,000 tCO2 by 2030.

Vision

To build the world’s largest distributed CO2 capture ecosystem and turn buildings into active protectors of the planet.

Mockup of Soletair Power Building HVAC integrated CO2 Capture Unit placed inside a building

Building CO2 Capture Unit

Distributed DAC Concept

Empowering buildings with onsite CO2 capturing systems

From the HVAC system, incoming air is pushed through our DAC filters containing our own proprietary-made amine-functionalized solid sorbents, and carbon dioxide is adsorbed by them. When the filter is saturated, the machine is closed and regenerated via vacuum & heating to collect the CO2. The captured CO2 is stored and can later be utilized or sequestered.

Learn more about our technology.
Milestones

Our Journey and Timeline

Helping cities, businesses, and governments solve a challenge with technology

2016

Company founded by Ari Piispanen and Pasi Vainikka in April 2016.

2017

First pilot unit delivered, meeting with Dubai businessmen; Ari and Pasi refined ideas.

2018

Seed funding received from Wärtsilä. National funding received from ELY. Operations started.

2019

First setups in lab, design phase of the bigger unit started.

2020

Received national funding from Business Finland. Began developing Expo 2020 Dubai Power-to-X Demo Unit and Vaasa STH Building HVAC Connected CO2 Capture Unit.

2021

Demonstrated the magic of making fuel from thin air in front of the world with the Power-to-X Demo Unit at EXPO 2020 Dubai. Signed contract with ZBT.

2022

Started CO2 Capture and Utilization mega project with a TBA company. Headcount reached 17. Delivered containerized Outdoor CO2 Capture Unit to ZBT, Germany.

2023

Delivered modular HVAC Integrated CO2 Capture Unit to Wärtsilä STH, Finland. Collaboration begins with regional CO2 utilization partners in different continents.

2024

Project begins at a Factory in Vantaa, Finland for creating X product from CO2 by HVAC Integrated CO2 Capture Unit. Massive interest from large global tech giants. Orders & interests spiked from UAE, Denmark, US, Hungary, Brazil, Finland, Hong Kong.

LL97 or Local Law 97 legislation mandates that all large buildings (>25,000 square feet) in New York City reduce their carbon emissions — all regulated through monthly disclosures. Buildings that do not comply with the law will face fines on an annual basis of $268 per ton of emissions above the limit.

Founder’s dream

“Buildings will capture more CO2 than they emit”

“Buildings already have fans. Buildings already have optimum temperatures. Why not utilize those fans, those conditions to capture CO2 from the passing air? We’ve started with a dream to turn millions of buildings around the world into CO2-capturing machines and we are going forward with it.”

– Ari Piispanen, Co-founder, Soletair Power

50%
BUILDING EMISSION REDUCTION
99.8
% CO2 PURITY
400
tCO2/y/BUILDING

“The DAC technology is a link to close the carbon cycle and to enhance the storage of renewable power, we are happy to install Soletair Power’s CO2 capture system and demonstrate the whole variety of Power-to-Gas applications on our test field in Duisburg.”

Ulrich Gardemann

Group Leader, Methane Technologies, ZBT, Germany

01 01

Building future cities

Enables building owners to capture CO2, offset emissions, save energy, minimize cost, and earn credits.

02 02

Retrofittable solutions

Irrespective of size, make or age, our technology uniquely fits the building’s HVAC systems.

03 03

Better productivity for offices

HVAC-DAC coupling ensures productive CO2-lean air for the building dwellers.

04 04

Making the planet healthier

Offsets CO2 emissions from the building resulting in a decrease of CO2 from the atmosphere.

How can your building protect the planet?

Our technology