The news comes as Vargas, the Swedish company behind the “Spotify of heat pumps” firm Aira, said on Wednesday that it had opened a new Aira factory at the site for which it has secured a €15 million grant from the Polish government.

Vargas added that it also plans to employ up to 2,000 specialists over the next decade.

Peter Prem, Aira's Chief Product Supply Officer, said: “This is an important moment for Aira and all the teams involved. We quickly turned this location into an Aira production facility and we are very proud to inaugurate the factory today,” a year after the company took over the site.

“I am especially proud of all the fantastic people who made this possible in such a short time. We are accelerating green transformation by producing smart and beautiful heat pumps on a large scale here, and this is just the beginning.”

Aira Group CEO Martin Lewerth added that “currently 130 million fossil-fuel boilers still heat homes across Europe.

“This is a market with huge potential. But it is also an opportunity to reduce carbon dioxide emissions and lower customer bills.

“Our Polish factory is of key importance for this transformation.”

The company says that in the next decade it is looking to supply 5 million homes across Europe with clean energy technological solutions and will invest some €400,000 in the plant.