A man checks the charging status of a home installed battery storage unit on a smartphone.
Schlüsselwörter
power,
consumption,
energy,
save,
home,
eco,
electricity,
information,
rate,
reading,
saving,
app,
person,
holding,
man,
analysis,
application,
certificate,
chart,
class,
control,
cost,
cyberspace,
diagram,
display,
efficiency,
efficient,
environmental,
graph,
improvement,
indoor,
mobile phone,
performance,
rating,
report,
screen,
smart,
tablet,
unit,
ecology,
classification,
domestic,
greenhouse,
technology,
adviser,
assessment,
automation,
checking
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