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Sign upMarch 1, 2023
Birra Peroni
Bari
Birra Peroni is operating a brewery in southern Italy producing beer for the Italian market and export. Making beer is a heat process using steam and hot water to boil the wort, clean pipes & bottles and pasteurize the finished product. Today, most breweries are burning natural gas to produce beer, about 20 kWh of natural gas for every 100 liter of beer resulting in about 4 kg of CO2. But at Birra Peroni, a field of the Absolicon T160 shows how the beer can be produced using solar thermal instead. The 450 kW installation is a pilot with small impact on the production, but it demonstrates the viability of reducing the use of fossil fuel in the food & beverage industry.
Each square meter of a solar thermal collector produces 0.7 kW of peak power and around 600 kWh of thermal energy annually, cutting CO2 emissions by 100 kg per year. The 660 m² demonstration installation will reduce emissions by about 60 tons annually. Full-scale solar thermal fields typically have a payback period of 6–7 years, depending on the cost of the replaced fossil fuels. The facility also includes a 20 MWh energy storage system.
Heat is half of the final energy consumption and heat accounts for 40% of the CO2 emissions. Absolicon has created a concentrating solar collector that can produce heat and steam up to 160 C that can heat both industrial processes and district heating networks. Many industrial processes consume large amount of heat. To make one kilo of textiles, two kilos of coal is used, to make one ton of tea, five tons of fire wood is burnt. Using the sun has heat source, this can be changed. The Absolicon T160 has the highest ever measured optical efficiency for a small parabolic trough (less than 2 m). Over 76% of the direct solar radiation is converted to heat. The collector is following the sun within a fraction of a degree. The result is heat and steam up to 160 C that can be used in industries, district heating or solar cooling.
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