Welcome to the Hitachi Zosen Inova timeline!


1933 - How it all began The steel mill and foundry “Gesellschaft der Ludwig von Roll’schen Eisenwerke”, established in 1823, sets up “L. von Roll Bamag Aktiengesellschaft”, a department specializing in thermal waste treatment.
1935 - New Name I The company is renamed “L. von Roll Aktiengesellschaft für Kommunale Anlagen” and only a few years later “L. von Roll AG Zürich” and becomes an independent branch.
1939 - The first plant worldwide Von Roll"s first turnkey plant goes into operation in Dordrecht in the Netherlands. The plant was built as licensee from Heenan and Froude.
1940 - The first plant in Switzerland With World War II underway in Continental Europe, L. von Roll AG für Kommunale Anlagen builds a thermal waste treatment plant in Basel, its first in Switzerland.
1946 - Global expansion I Shortly after World War II, the company opens its first branch outside Switzerland. The establishment of Louis de Roll (France) Sàrl – later Inova France – lays the foundations for one of the firm’s most important subsidiaries.
1954 - First proprietary grate The first combined heat and power plant is built in Berne, Switzerland. The company also installs its first proprietary grate with a reciprocating predrying and main grate.
1960 - Global expansion II Buoyed by growth in the economy, the company opens its first Asian branch: De Roll Japan Ltd.
Following the commissioning of a waste incineration plant in Hamburg in 1959, L. Von Roll Gesellschaft für Kommunale und Industrielle Anlagen GmbH (later Von Roll Inova GmbH) opens its first branch in Germany.
1962 - New name II L. von Roll AG is integrated into its parent company Von Roll AG, Gerlafingen, and is from then on known as Von Roll AG.
1966 - Global expansion III Following Germany, the company enters the Nordic markets with the foundation of Svenska Von Roll Aktiebolag (later Svenska Von Roll Inova AB).
1969 - Global expansion IV The global business is booming. Von Roll opens further branches and sales companies in Norway, Spain, the Netherlands, Australia, Austria, Canada, and Mexico.
1974 - First complete integrated system The company develops the R-series grate, the first complete integrated system including charging, grate, ash removal, air supply, boiler, and a combustion control system.
1975 - Long-standing relationships The signing of the license agreement with the US firm Wheelabrator Frye lays the foundations for an enduring partnership. WTI, as the company is now known, is still a client and partner in the UK and US markets.
1981 - First scrubber The first plant with a flue gas scrubber (wet scrubber) goes into operation at Biebesheim in Germany. After Nyborg in Denmark, this was the second major hazardous waste incineration plant built by Von Roll.
1982 - Incineration of hazardous waste With the pilot plant at Klus near Balsthal in Switzerland, the company gathers its first experience in the controlled incineration of highly toxic materials and high calorific waste in a rocking kiln.
1988 - Expansion in the US The engineering for the first hazardous waste incineration plant in the US in Ohio starts.
1989 - Technical milestone At the end of the 1980s, Von Roll launches the first SNCR process on the market.
1991 - Pioneer in exhaust gas norms With the development of its fly ash process for extracting mercury and dioxins, Von Roll becomes the first plant construction firm able to meet flue gas norms that still apply today.
1994 - On the high seas Von Roll starts manufacturing waste treatment facilities for cruise ships. The acquisition of Norsk Hydro Waste Treatment Systems allows the company to further expand its position in northern Europe.
1995 - A holding company is established Newly founded Von Roll Environmental Technology Ltd. becomes an independent subsidiary of Von Roll AG. Von Roll Inova Environmental Technology Holding Ltd. is set up as the umbrella for the group.
1997 - Holding company renamed Von Roll Inova Environmental Technology Holding Ltd. is renamed Von Roll Inova Holding Ltd.
2002 - A year of innovations Von Roll launches Aquaroll, a new water-cooled grate that minimizes wear and optimizes the combustion process. Thanks to fuzzy logic, the new and improved combustion control system, featuring infrared cameras, enables plant operators to monitor the combustion process more effectively. The low temperature catalyst allows to remove nitrogen oxides at temperatures below 200°C.
2005 - Software adding value Pamela is launched. As well as enabling operators of thermal waste treatment plants to optimize the running of their facilities, this plant monitoring software also helps them to schedule maintenance work precisely.
2006 - New premises The company moves from Hardturmstrasse 133 to its current base at Hardturmstrasse 127 in Zurich.
The first contract for a turnkey energy-from-waste plant in the UK, Cleveland 3, is signed.
2008 - Integration of KRB After a long-standing collaboration, the company takes over the innovative small Swiss firm Kessel- und Rohrleitungsbau Buchs (KRB). Its high-tech cladding portfolio makes it a perfect fit with Von Roll Inova’s EfW strategy.
It is the companies third contract for a turnkey energy-from-waste plant in the UK, Riverside, is signed.
2009 - Better controls for nitrogen oxides By developing the non-catalytic DyNOR process, the company closes the gap between the cost-intensive SCR process and conventional SNCR.
2010 - New grate After more than 30 years, the company brings a new generation of grates to market. The way they are constructed makes maintenance safer and more straightforward.
Von Roll Inova is now called AE&E Inova Ltd.
2011 - New owner After a partnership stretching back some 50 years, the Japanese industrial group Hitachi Zosen Corporation takes the company and is renamed Hitachi Zosen Inova AG.
2012 - Riverside Resource Recovery With an annual capacity of 585,000 tonnes, the Riverside Resource Recovery is an important strategic river-served waste management facility for London and HZI most important reference.
2014 - Kompogas® - our anaerobic digestion process Having acquired the Kompogas® technology, HZI now has two first-class technologies for waste-to-energy conversion. In addition to thermal solutions, it will in future also offer proven biogas facilities based on energy recovery by fermentation.

Pioneer in Thermal Waste Treatment
Hitachi Zosen Inova was founded in 1933 as “L. von Roll Bamag Aktiengesellschaft”. It was originally a department of “Gesellschaft der Ludwig von Roll’schen Eisenwerke”, a steel mill and foundry that dates back to 1823. The purpose of the new department was to focus on thermal waste treatment. Six years later, it built the first turnkey plant for the Dutch city of Dordrecht.

Emphasis on Technology
In its first few years, the company relied on several licenses to construct plants with technologies that were then state of the art. But from the very beginning, the company also developed proprietary and improved technologies. Subsequently, it repeatedly established milestones with its own designs, in the domain of thermal waste treatment, including the reciprocating grate, advanced methods for flue gas purification, and processes for the treatment of residues.

Global Expansion
In 1960 Von Roll opened its first offices in Germany and Japan, core markets at that time. In 1966, subsidiaries were founded in France and Sweden, and in 1975, the company established a presence in the USA where it built some of the world’s largest plants. This group, consisting of Von Roll Environmental Technology Ltd in Zürich and its affiliated companies, was always at the forefront of the industry known as the “Von Roll Inova Group”. In 2003, the Von Roll Inova Group was acquired by the AE&E Group, a member of A-Tec Industries AG. AE&E was an industrial group with a global reach in thermal energy generation and environmental technologies. By the end of 2010, AE&E Inova AG together with its subsidiary AE&E KRB AG were sold to Hitachi Zosen Corporation, which brought the company a new name and new partnerships.

Tradition as a Commitment
Hitachi Zosen Corporation (HZC) has been a licensing associate of Hitachi Zosen Inova AG for more than 50 years and using the former Von Roll Technology. During this time, HZC has implemented its partner’s core technology in more than 200 Energy-from-Waste (EfW) plants in Japan, China and other countries throughout East Asia. Hitachi Zosen Inova AG and Hitachi Zosen Corporation combine the competencies of two strong partners in the Energy-from-Waste sector. After all, tradition is a commitment. Yesterday, today, and tomorrow.

Two First-Class Waste Management Technologies under One Roof
The acquisition of the Kompogas® technology in 2014 completes the portfolio of Hitachi Zosen Inova, and therefore the company extends its position as one of the world’s leading providers of EfW plants and solutions. With both, thermal and biological treatment of waste, Hitachi Zosen Inova is able to address the specific market requirements emerging from the separate collection of biogenic waste.