What is the Combined Heat and Power System (CHP)?


In 2017 D.G. Yuengling and Son were recognized for the energy savings achieved through its Combined Heat and Power System (CHP). Yuengling’s CHP system is craft brewing industry leading sustainability technology. 


What is the Combined Heat and Power System (CHP)?

  • Brewing increases the demand on the municipal wastewater treatment system. To reduce the demand on the public system, a brewery may build an onsite wastewater treatment plant to pre-treat the effluent brewing water.
  • The first step of the process is to pretreat effluent brewing water. The wastewater pretreatment plant filters and collects organic materials (sugar, yeast, proteins) from the wastewater. The digested effluent produces a significant amount of biogas (methane). The captured biogas will power the CHP system, a separate unit from the wastewater pretreatment plant, which produces electricity and heat. The system is designed to use the biogas, a green and renewable energy source, to provide electricity to the brewing operations.
  • The waste heat is used year round to preheat wastewater as it enters the wastewater treatment plant (WWTP). The WWTP does not produce enough biogas to power the CHP alone, and purchased natural gas is used to augment the gas generated by the breakdown of brewing byproducts.
  • The result is energy savings to the brewery and reduced energy reliance on a public power resource.


Pottsville Brewery

PPL Electric Utilities awarded the brewery a one-time energy savings rebate of $43,979.88 from the alternative energy savings achieved from the installation of its Combined Heat and Power (CHP) Project located in the historic creamery building, part of the Pottsville Campus of America’s Oldest Brewery. The restored creamery building also houses the brewery’s gift shop and museum. The Yuengling Pottsville wastewater pretreatment plant and CHP project were completed December 28, 2016.  The energy savings that related to the rebate was KWH savings of 1,465,996 units. The pretreatment plant is in operation 24 hours, 7 days a week.

Mill Creek Brewery

At its Mill Creek brewery, a wastewater treatment plant was installed in 2001 when the brewery was built and the CHP was installed in 2014.  Improvements to the pretreatment plant and CHP generator will allow it to operate 24 hours, 7 days a week and is expected to reduce electricity consumption by 20%

Tampa Brewery

The Yuengling Tampa brewery is close to completion of its wastewater treatment system and CHP generator which will reduce electricity consumption at the Tampa brewery by 10 – 15%. The Environmental Protection Commission of Hillsborough County, FL has recognized the brewery with a Certificate of Commendation for the project. Its noted benefits are to not only in the reduction in electricity demand from the power grid, but also in a reduction of greenhouse gas emissions. The project should be completed by August 2017.