Global leader
for cogeneration solutions

+1,550 installed plants
+1,750 MW installed power


AB ENERGY USA LLC is the American subsidiary of AB – a company dedicated to biogas and natural gas cogeneration, RNG and air emission treatment - with over 1,550 installed plants and direct presence in 20 countries worldwide.

Since 1981, AB has tackled the challenges posed by energy sustainability, working alongside our customers to improve their competitiveness while saving energy and reducing emissions.

From our earliest days, we have focused on innovation to develop world-class technologies and processes dedicated to transforming the world of energy.

Our objective? To ensure our customers benefit from the best energy sustainability solutions available anywhere.

How? By dedicating our expertise, production capacity and excellent service capabilities to the problems at hand.

In the cogeneration sector, AB’s leadership team has expanded our company’s reach to encompass biofuels. We have developed advanced purification and liquefaction processes for biomethane, coupled with highly effective emissions treatment.

We take pride in the “Made in Italy” level of excellence we offer. The AB Group now boasts over 1,000 employees in 20 countries throughout Europe, Russia and North and South America, with primary production and engineering centralized in a state-of-the-art industrial complex located in Orzinuovi, Province of Brescia, Italy.

Our customers rely on us to develop the “Better Way” to support them with the skills, technologies and processes, so they perform at their best. Together, we are helping build a better world.



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!