Emissions Cut by New Heat Pump

DB Brewery has had the greenlight from the NZ government for a new hot water heat pump to help cut emissions

DB Breweries looks at a carbon emission decrease of over 30 percent after receiving approval from the NZ Government for a new industrial high-temperature hot water pump that uses electricity instead of natural gas. The Minister of Energy and Resources, Dr Megan Woods, made the approval announcement today as part of the Government Investment in Decarbonising Industry (GIDI) fund.

The GIDI fund will cover around 12 percent of the new project costs and was established as a part of the Covid Response and Recovery Fund. While industrial high-temperature hot water heat pumps are established commercially in many parts of the world, they are rare within the New Zealand industry and a partnership with the government was imperative for DB to get the new project underway.

“Collaboration is vital as New Zealand moves towards a lower carbon future. We are thrilled to have successfully applied for funding from the Government’s GIDI Fund as we take an important step in decarbonising our Waitematā site and continue moving towards operating fully carbon-neutral breweries by 2030.’’ Said Matt Wilson, Managing Director at DB Breweries.

Wilson noted that in 2020, process heat accounted for 70 percent of DB's carbon footprint. Thermal energy emissions from the Timaru brewery have already been reduced by 98 percent due to the removal of coal-derived steam from production processes. DB now turns its focus to the Waitemata brewery which currently accounts for 40 percent of the company's total residual emissions.

The installation of the new heat pump is expected to decrease the annual natural gas use at DB by approximately 30,000 GJ, or what is equivalent to the energy used by around 1,000 average kiwi households in one year.