INCORPORATING COLD CHAIN
PROJECT
The domestic hot water tanks serving the facility . The plant room equipment . The accumulator valve stations .
The plantroom showing equipment and compressors .
use 334MWh more electricity , which results in 317 tons of CO 2 per year being avoided in this installation , based on energy-savings alone . When taking in an average refrigerant leak rate of 15 %, the number of CO 2 emissions avoided goes up to an annual amount of 1 200 tons .
PROJECT BACKGROUND
Dr Oetker South Africa , being part of The Oetker Group , forms one of the biggest German-family enterprises . The new plant in Johannesburg ( operational since July 2020 ), will double as a production and distribution facility and therefore requires significant amounts of cooling at different temperatures for its processing and holding areas respectively .
The compact site layout and long operating hours presented an ideal opportunity for using waste heat to also
generate domestic hot water . A cooling service contract with full maintenance offer was signed for an initial 15-year contract period , with yearly extensions thereafter . Dr Oetker has the option to purchase the plant from EPR and to end the outsourcing contract at any stage , while the invoicing for the refrigeration services is made through EPR ’ s unique “ cooling meter ”.
The fixed payment per unit of cooling includes all operating costs , even the electricity consumed by the plant . This means that Dr Oetker will not be paying more for the plant operation even if the efficiency of the plant is lower than expected . The CaaS product offered to the client is an off-balance sheet transaction , with ownership of the plant residing with EPR . The solution provides a fully outsourced refrigeration system that includes the refrigeration plant , piping , and evaporators . This approach changes
An oil pot . The plants control centre . Some of the compressors installed in the plant room .
COLD LINK AFRICA • January / February 2021 www . coldlinkafrica . co . za 21