Free illustration materials

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  Oil pump-Kerosene pump
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  Black solar panel
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  Mark of remaining battery level
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  Chernobyl nuclear power plant
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  House with solar panels installed
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  Lithium battery
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  Invoice for gas bill
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  Tesla coil
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  Male unplugged (power saving)
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  A person who noticed an open refrigerator
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  Oil money
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  Charging communication equipment
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  Oil tanker
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  Fuel cell vehicle to drain
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  Lighting (round fluorescent lamp)
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  Smartphone battery dead
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  Boring work
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  Breaker switch
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  Various batteries (disjoint)
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  Person who turns off the TV (power saving)
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  Coal
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  Reactor
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  Fire Wizard
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  Dirty earth (environmental problems)
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  old battery
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  Marine plant
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  New battery
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  Wood chip
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  Oil mining
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  3P power plug

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  Power outage (before and after)
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  Alessandro-Volta caricature
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  Thermal power plant
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  Edison caricature
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  Male adjusting the temperature of the air conditioner (power saving)
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  Person with a heavy plastic tank
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  Power saving (unplug)
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  Oil in drums
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  Firewood
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  Oil King
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  Person who has the switch off (power saving)
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  Various batteries (set)