122 Less different self generated the Lebensbaum energy concept Energy data Diepholz Energy management at Lebensbaum is all about less different and self generated Less The roaster is the decisive factor in overall energy consumption at our Gronau site The new coffee roast er consumes up to 40 less energy than its predeces sor This is because for example we use the waste heat from the previous roasting process to preheat the as yet unroasted coffee beans see page 50 Different Lebensbaum uses 100 green energy provid ed by local public utility companies A newly acquired electric company vehicle is charged at our own public charging point Self generated A geothermal energy system maintains the temperatures needed for our carbon neutral produc tion Since December 2015 almost 10 of the green en ergy needed has come from our own photovoltaic sys tem Our shipment logistics building uses a solar pow ered gas heating system solar heat With this local decentralised power generation we are contributing to a robust sustainable energy supply DH only Since the end of 2015 we have been doubly pleased every time we ve seen the sun our new photovoltaic system is in operation converting the sun s rays into energy This energy is used directly on site Our tea ma chines are now run on solar power on sunny days If there is not sufficient solar power hydroelectric green energy is used as before Our system has an output of 128 01kWp Around 800kWh of energy is generated per day by the 506 indi vidual modules when the weather conditions are favour able in the summer We expect to be able to cover almost 10 of our electric ity demand for the year with our photovoltaic system And whenever we have surplus solar power for example at the weekend we feed the excess into the local grid DH only 6 Nature and people 2012 2013 2014 2015 Finished goods in units 26 635 104 29 942 113 33 876 504 36 368 267 Green energy kWh 1 102 140 1 305 729 1 426 559 1 391 121 Natural gas consumption kWh 322 507 375 706 274 322 265 987 Total energy consumption kWh 1 424 647 1 681 435 1 700 914 1 657 108 Energy consumption in kWh per unit 0 053 0 056 0 050 0 046 0 01 0 02 0 05 0 06 0 053 2012 0 056 2013 0 050 2014 0 046 2015 0 03 0 04 Energy consumption kWh per unit Photovoltaics

Vorschau Sustainability Report 2016 Seite 128
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