Global leader
for cogeneration solutions

+1,450 installed plants
+1,650 MW installed power

AB ENERGY USA LLC is the American subsidiary of AB – a company dedicated to cogeneration and to the development of renewable energy sources such as biogas and biomethane - with over 1,450 installed plants and direct presence in 21 countries worldwide including Italy, Canada, Brazil, Mexico, UK, Germany and Russia.

Since 1981, AB has been at the side of companies seeking to improve their own competitiveness, saving energy and limiting environmental emissions.

We build relationships with our customers and partners based on openness and mutual trust: we manufacture and manage systems as if they were our own. With over 40 years of experience, AB’s design know-how and manufacturing capabilities are paralleled by none, ensuring excellence in every manufactured plant and after – sales service.

AB is the only manufacturer, with an industrial process able to internally manage the entire production cycle of the cogeneration plant.

The principal production and engineering activities are concentrated in a modern industrial facility with its head offices in Orzinuovi (BS) Italy, spread over about 366,000 square feet of connected buildings, where the production facility, engineering offices, service centre and management are located.

A team of more than 140 engineers work within an interdisciplinary framework to produce quality solutions tailored to the needs of the client.



A plug & play
compact solution

ECOMAX® is an idea entirely conceived and developed by AB, which has evolved into a wide range of applications, to the point of becoming the core technological and market reference of modern cogeneration. ECOMAX® is the engineered solution that brought cogeneration to unmatched levels of functionality and efficiency, contributing to the success of many different application sectors.

The ECOMAX® module is compact and dramatically reduces the system’s overall dimensions, since it houses all components within an easily accessible, ergonomic technological layout with wide doors. Great care is put into producing a well insulated, temperature-controlled, and soundproof system, to reduce losses and noise produced by the engine.

Today the ECOMAX® range presents scalable modular solutions in five product lines, which make AB’s offers complete and unique.

ECOMAX® Strengths

An industrial plug and play product
Minimized costs, risks and times for one-site installation and start-up
Can be removed or relocated
Simplicity of connection to existing systems


The largest network of specialised technicians dedicated to the servicing and maintenance of AB installations around the world. Thanks to our staff of specialized technicians operating around the world, AB guarantees the constant maintenance of each plant installed throughout its life cycle. The advantages offered by AB Service begin with the installation of the plant:

  • a single partner for every need
  • remote monitoring and online diagnosis
  • availability and supply of original spare parts
  • extensive presence of personnel near the installation sites
  • wide network of spare parts warehouses
  • guarantee of quick turnaround timeframes on site for repairs, updates and overhauls.

Some of our U.S. references

Several leading companies across various sectors and applications have benefited from AB’s ECOMAX® solutions. These include Pfizer, Eli Lilly, Coca Cola, Nestlé, Mondelez International, Wienerberger, BASF and many others.

Aria Health hospital

Aria Health hospital

Philadelphia, USA
Industry Healthcare
Application Natural gas
Electrical output 1,137 kW
Intergrow greenhouse

Intergrow greenhouse

Albion, USA
Greenhouse Healthcare
Application Natural gas
CHP Plants ECOMAX® 24 GH
Electrical output 2,405 kW
Hitachi zosen inova

Hitachi zosen inova

San Luis Obispo, USA
Industry Waste to power
Application Biogas
Electrical output 853 kW
Camden County Municipal Utilities Authority

Camden County Municipal Utilities Authority

Camden NJ, USA
Industry Waste to power
Application Biogas
CHP Plants 2xECOMAX® 2 BIO
Electrical output 3,8 MW

AB Affiliations

Discover our tailor-made solution!