How much electricity does a 4-people-household need? What are the saving potentials per year?
Conditions:
--> Number of people: 4
--> Building: Appartement
--> Additional costs: 1200 Euros
--> Additional cost: once a year
--> Zip code 10115 (Berlin)
If you reduce the CO2 emissions to 1.2 t/year (using conventional electricity), how many trees do you need to tie up the amount of CO2?
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Livia & Ulza