Renewable solutions, Oil products ·

Major turnaround 2024 at Neste refinery in Porvoo, Finland about to begin

Porvoo refinerymajor turnaround

Neste Corporation, Press Release, 2 April 2024 at 9 a.m. (EET)

Neste secures safe and undisrupted operations at its refineries with regularly scheduled maintenance shutdowns, i.e. major turnarounds. At Neste’s refinery in Porvoo, Finland, the preparations for the major turnaround taking place in April-June began on 1 April with shutdowns of process units. After the refinery shutdown is completed, the actual turnaround works will begin in mid-April and are expected to continue until mid-May. The estimated duration of the turnaround is approximately nine weeks.

During the major turnaround, the entire Porvoo refinery will be shut down for statutory inspections, maintenance works and asset improvement initiatives. In addition, the turnaround will contribute to Neste's ambition to make the Porvoo refinery the most sustainable refinery in Europe by 2030 and to reach carbon-neutral production by 2035. The major turnaround does not affect Neste’s harbor and distribution terminal operations. 

Major turnaround temporarily increases the number of people in the refinery area

"More than a hundred audited contractor companies and a total of some 4,500 people, including about a thousand Neste employees, are participating in the turnaround works," says Sami Wasström, Head of Turnarounds from the Oil Products business at Neste. "In all turnaround works, we ensure the health, safety and well-being of our employees and partners. Our ambition is to make every turnaround day a safe day."

Careful planning has enabled Neste to shorten the duration of the 2024 major turnaround compared to previous major turnarounds in Porvoo. Shutdowns and startups of process units temporarily cause increased flaring, noise and odor nuisance in the nearby areas. During the major shutdown, traffic volumes in the nearby area increase considerably.

"We always plan major turnarounds very diligently. It is important to us that the turnaround interferes with the life of the local residents and businesses as little as possible and that the impact is short-termed," says Sami Wasström.

Neste MY Renewable Diesel™ moves the turnaround workers and machines

With temporary parking and traffic arrangements the aim is to ensure smooth traffic flow during the major turnaround. A temporary parking area and adjacent services have been arranged for the contractors participating in the turnaround. Neste organizes continuous shuttle bus transportation from the temporary parking area to the turnaround site for the contractors. 

The buses and heavy machinery used in the turnaround are powered by Neste MY Renewable Diesel™ with which the greenhouse gas emissions from the use of heavy machinery and bus transports during the turnaround can be reduced by 90%* on average compared to the use of fossil diesel.

*) Over the life cycle of the fuel when compared to fossil fuel. The method used to calculate life cycle emissions and emission reduction complies with the EU Renewable Energy Directive II (2018/2001/EU).

Neste Corporation

Susanna Sieppi
Vice President, Communications and Brand (act.)

Further information: Please contact Neste's media service, tel. +358 800 94025 / (weekdays from 8.30 a.m. to 4.00 p.m. EET). Please subscribe to Neste’s releases at

Neste in brief

Neste (NESTE, Nasdaq Helsinki) creates solutions for combating climate change and accelerating a shift to a circular economy. The company refines waste, residues and innovative raw materials into renewable fuels and sustainable feedstock for plastics and other materials.

As the world’s leading producer of sustainable aviation fuel and renewable diesel and a forerunner in developing renewable and circular feedstock solutions for polymers and chemicals, Neste helps its customers to reduce their greenhouse gas emissions by at least 20 million tons annually by 2030.

The company’s ambition is to make the Porvoo oil refinery in Finland the most sustainable refinery in Europe by 2030. Neste is committed to reaching carbon-neutral production by 2035, and will reduce the carbon emission intensity of sold products by 50% by 2040. Neste has also set high standards for biodiversity, human rights and the supply chain. The company has consistently been included in the Dow Jones Sustainability Indices and the Global 100 list of the world’s most sustainable companies. In 2023, Neste's revenue stood at EUR 22.9 billion. Read more: