One of the most advanced production facilities in HEINEKEN’s European network is the Athenian Brewery plant in Patras , with ongoing investments of over 60 million euros in energy efficiency, circular economy practices, water resource management, and renewable energy solutions.
As Sebastian Sanchez, Managing Director of Athenian Brewery, during an event held at the Patras plant , “over the years, we have consistently invested in Patras: in production, innovation, sustainability, and people. Here we produce beer that is distributed throughout Greece and to a number of export markets. We also produce malt derived from Greek barley grown under the contract farming program, which we use here as a raw material and which we also export.”
The Patras plant, according to director Thanasis Gioulis, spanning a total area of 252 acres, has a capacity of up to 3 million hectoliters, or 300 million liters of beer per year—that is, approximately 600 million 50cl bottles or 900 million 33cl cans.
“This is the largest brewery in our country, with a strong presence, modern infrastructure, and a significant contribution to the region’s industrial base,” he emphasized.
The facility features five automated packaging lines: two bottle lines—one for returnable bottles and one for single-use packaging—one can line, and two keg lines (metal and PET). At the same time, it features modern malting and brewing facilities, two brewing lines, two filtration lines, and 90 beer tanks, which together form a comprehensive, high-standard production chain.
The Patras plant produces all of Athenian Brewery’s core brands, as well as ciders, whose production began in 2019 with one of the company’s most modern investments.
In total, 12 different brands and 141 product codes are produced in all types of packaging, while the finished product is stored in 28,000 square meters of covered facilities, meeting high standards of safety and functionality.
According to Mr. Gioulis, “it is particularly significant that the Patras plant is one of the very few HEINECKEN plants in Europe that has a malting facility.”
“The existence of this unit, along with the one we have at our other plant in Thessaloniki, has enabled us to develop a contract barley cultivation program with Greek farmers, which has been running for 16 years, strengthening domestic agricultural production and creating a meaningful link between industry and the primary sector,” Mr. Gioulis emphasized, adding:
“To reach our current level, we have invested more than 60 million euros over the past ten years, with the consistent goal of keeping Patras at the forefront of production and technological development.
These investments include the development of new products, such as the modern cider production line, the innovative production of single-use barrels, the expansion of our storage facilities, the modernization of production with a new CO2 capture and processing complex, as well as the adoption of new fuel and energy technologies.”
“Among these investments, green technologies stand out, such as the 1 MW self-consumption solar farm, which already covers approximately 10% of our electricity needs. And this is just one part of our overall effort to combine production capacity with sustainability,” noted Mr. Gioulis.
He also emphasized that “the landmark green investment in Greece’s first solar thermal park, with a capacity of 5.75 MW, is nearing completion, and testing will begin next month. With this investment, we expect to cover up to 25% of our thermal energy needs, further strengthening our transition to a more sustainable production model.”
Equally important is the effort to reduce the plant’s environmental footprint. As mentioned, in brewing, water is a key raw material and a valuable natural resource. For this reason, from 2015 to 2025, water consumption was reduced by 2.7 liters per liter of beer produced, achieving annual savings of 405 million liters of water.
“We’re talking about a quantity that, by estimate, is enough to meet the drinking and cooking water needs of the entire population of Patras for a year,” emphasized Mr. Gioulis, adding: “Similarly, the reduction in electricity consumption, combined with the output from our 1 MW solar park, saves us 3.5 million kWh per year——enough energy to power all the homes in Vrachneika for an entire year.”
As he explained, “in terms of thermal energy, from 2015 to 2025, we achieved a reduction of 27 MJ per hectoliter, which translates to annual savings of 40,500 GJ. This amount is roughly equivalent to heating 2,000 homes or a small coastal town in the region. Even more impressive is our progress on CO2 emissions.
From 2015 to 2025, we reduced them by 20,000 tons, or 71% compared to 2015. And with the solar thermal park coming online, by the end of 2026 this reduction is expected to reach 79%. This result is the product of a comprehensive strategy: energy conservation, the use of cleaner forms of electricity, and the transition from fuel oil to natural gas, with choices that substantially reduce our environmental footprint.”
This effort is also recognized internationally. In 2025, the Patras plant was certified at the Silver level among Heineken’s plants—a distinction held by only 12 plants worldwide. That same year, the plant ranked second among 52 European plants based on productivity and the achievement of its goals.
“Through the TPM continuous improvement program, for the past ten years we have seen steady progress in water and energy consumption metrics, production line efficiency, quality indicators, and the reduction of beer and material losses. “And in 2025, the Patras plant was ranked among Heineken’s top facilities globally in terms of quality results, while we also celebrated 600 days without an accident,” added plant manager Thanasis Gioulis.
SOURCE: APE